| API | Description | Category | Mashups |
|---|
| Google Maps | Mapping services | Mapping | 2461 |
| Twitter | Microblogging service | Social | 776 |
| YouTube | Video sharing and search | Video | 669 |
| Flickr | Photo sharing service | Photos | 620 |
| Amazon Product Advertising | Online retailer | Shopping | 420 |
| Facebook | Social networking service | Social | 399 |
| Twilio | Telephony service | Telephony | 354 |
| Last.fm | Online radio service | Music | 234 |
| eBay | eBay Search service | Search | 222 |
| Google Search | Search services | Search | 187 |
| Microsoft Bing Maps | Mapping services | Mapping | 175 |
| Twilio SMS | SMS messaging service | Messaging | 173 |
| del.icio.us | Social bookmarking | Bookmarks | 161 |
| Yahoo Search | Search services | Search | 145 |
| Yahoo Maps | Mapping services | Mapping | 136 |
| Google Ajax Search | Web search components | Search | 134 |
| Google App Engine | Developer platform | Tools | 123 |
| 411Sync | SMS, WAP, and email messaging | Messaging | 120 |
| foursquare | Social networking and city exploration | Social | 101 |
| Google Homepage | Portal gadgets | Widgets | 101 |
| Yahoo Geocoding | Geocoding services | Mapping | 100 |
| Amazon S3 | Online storage services | Storage | 89 |
| Google Chart | Chart creation service | Other | 87 |
| GeoNames | Geographic name and postal code lookup | Reference | 86 |
| Wikipedia | Online collaborative encyclopedia | Reference | 81 |
| Box.net | Online file storage | Storage | 79 |
| Amazon EC2 | Elastic Compute Cloud virtual hosting | Internet | 77 |
| Google AdSense | Advertising management | Advertising | 76 |
| Digg | Community driven news links and ratings | News | 70 |
| Technorati | Blog search services | Blog Search | 70 |
| Google Base | Platform for structure and semi-structured data | Shopping | 67 |
| Bing | Online search services | Search | 62 |
| Google AJAX Libraries | Content distribution network for AJAX libraries | Internet | 62 |
| Shopping.com | Online retail shopping | Shopping | 60 |
| Yahoo Image Search | Image search services | Search | 60 |
| Yahoo BOSS | Customizable search service | Search | 58 |
| Freebase | Community driven open database | Database | 55 |
| Yahoo Local Search | Local search service | Search | 55 |
| Google Analytics | Web analytics service | Internet | 54 |
| LinkedIn | Business social networking platform | Social | 52 |
| Yelp | Local user reviews and city guides | Recommendations | 52 |
| DocuSign Enterprise | Electronic signature contract execution services | Enterprise | 49 |
| Facebook Graph | Facebook Social Graph API | Social | 49 |
| Google Earth | Mapping and 3D geo visualization | Mapping | 49 |
| Panoramio | photo upload site with organizer and geolocation | Photos | 49 |
| Eventful | Local events discovery and demand | Events | 47 |
| Google Ajax Feeds | Access RSS and Atom feeds with JavaScript | Feeds | 46 |
| Salesforce.com | CRM services | Enterprise | 46 |
| Google Maps Flash | Flash-based mapping service | Mapping | 45 |
| Instagram | Mobile photo sharing service | Photos | 45 |
| Google Maps Data | Service to store, update and view geodata | Mapping | 43 |
| Google Calendar | Calendar service | Calendar | 42 |
| Google Translate | Language translation service | Utility | 42 |
| geocoder | Geocoding services for US | Mapping | 41 |
| Upcoming.org | Collaborative event calendar | Events | 41 |
| Google AdWords | Search advertising | Advertising | 39 |
| Google Custom Search | Google custom search management | Search | 37 |
| indeed | Job search services | Job Search | 37 |
| Commission Junction | Online affiliate programs | Shopping | 36 |
| Google Picasa | Photo management and sharing service | Photos | 36 |
| Microsoft Bing | Internet search | Search | 36 |
| Yahoo Term Extraction | Contextual search service | Search | 36 |
| MusicBrainz | Music metadata community service | Music | 35 |
| PayPal | Online payments | Payment | 35 |
| Bit.ly | URL shortening service | Internet | 34 |
| Blogger | Blogging services | Blogging | 34 |
| FeedBurner | Blog promotion tracking service | Blogging | 34 |
| FriendFeed | Activity stream aggregator | Other | 33 |
| Oodle | Online classifieds service | Shopping | 31 |
| TwitPic | Share photos on Twitter | Photos | 30 |
| AOL Video | AOL Truveo Video Search | Video | 29 |
| Google Geocoding | Google Maps Geocoding Service | Mapping | 29 |
| Zillow | Real estate pricing and valuations and mortgage rates | Real Estate | 29 |
| BBC | Media program information service | Media Management | 28 |
| Google Visualization | Display and visualization of structured data | Other | 28 |
| Skype | Internet communication | Telephony | 28 |
| Bing Maps | Microsoft online mapping service | Mapping | 27 |
| Shopzilla | Online shopping content | Shopping | 27 |
| SoundCloud | SoundCloud is a social audio platform | Music | 27 |
| Yahoo Answers | Community driven reference service | Answers | 27 |
| Google AJAX Language | Text translation service | Utility | 26 |
| Lyricsfly | Song lyrics search engine | Music | 26 |
| MySpace | Social networking service | Social | 26 |
| Facebook Social Plugins | Facebook extensions | Social | 25 |
| imageLoop | Animated slideshow service | Photos | 25 |
| LyricWiki | Song lyrics data service | Music | 25 |
| Netflix | Movie rental service | Video | 25 |
| Spotify Metadata | Music search and lookup service | Music | 25 |
| Yahoo Video Search | Video search | Video | 25 |
| Google Static Maps | Simple online mapping service | Mapping | 24 |
| Vimeo | Video sharing service | Video | 24 |
| Tumblr | Web scrapbook post and view service | Social | 23 |
| Etsy | Handmade product marketplace | Shopping | 22 |
| Zazzle | On-demand product creation service | Shopping | 22 |
| Echo Nest | Music services for professionals | Music | 21 |
| Trynt | Term extraction service | Other | 21 |
| Weather Channel | Weather forecast data | Weather | 21 |
| WeatherBug | Weather forecast services | Weather | 21 |
| Yahoo Shopping | Shopping services | Shopping | 21 |
| Tropo | Communications API for voice, SMS and Instant Messaging | Telephony | 20 |
| Yahoo Traffic | Traffic data and routing | Transportation | 20 |
| FedEx | Package shipping | Shipping | 19 |
| Google Spreadsheets | Online spreadsheets | Office | 19 |
| MSN Messenger | Chat and messaging | Chat | 19 |
| MTV | MTVN Content API | Video | 19 |
| Sunlight Labs Congress | US Congress database service | Government | 19 |
| Google Talk | Chat application | Chat | 18 |
| hostip.info | IP lookup | Internet | 18 |
| Yahoo Query Language | Query language platform for Yahoo services | Database | 18 |
| Calais | Semantic data search and extraction service | Other | 17 |
| Heroku | Ruby cloud application platform | Internet | 17 |
| HotelsCombined | Hotel comparison search / aggregator | Travel | 17 |
| Netvibes | Personalized home page with widgets | Widgets | 17 |
| OpenStreetMap | The free wiki world map | Mapping | 17 |
| SeeqPod | SeeqPod Music Discovery | Music | 17 |
| Amazon Marketplace Web Service | Product marketplace service | Shopping | 16 |
| DonorsChoose | An online charity connecting you to classrooms in need | Education | 16 |
| OpenLayers | Mapping API abstraction layer | Mapping | 16 |
| Rhapsody | Online music services | Music | 16 |
| Basecamp | Project collaboration service | Project Management | 15 |
| DBpedia | Structured query interface to Wikipedia | Wiki | 15 |
| Google Contacts | Contact list management | Other | 15 |
| Google Fusion Tables | Data sharing and visualization platform | Database | 15 |
| Google Places | Local business and point of interest service | Mapping | 15 |
| iTunes and iTunes Connect | iTunes App Store and iTunes Connect data source | Other | 15 |
| Photobucket | Online photo sharing service | Photos | 15 |
| Smugmug | Photo sharing service | Photos | 15 |
| Amazon A9 OpenSearch | Search services | Search | 14 |
| Google Documents List | Document management services | Office | 14 |
| LinkShare | Affiliate marketing network | Shopping | 14 |
| MapLarge | Embed interactive maps on websites | Mapping | 14 |
| MaxMind GeoIP | IP address lookup services | Internet | 14 |
| US Postal Service | Package shipping and postage | Shipping | 14 |
| Alexa Web Information Service | Web site information and traffic data | Search | 13 |
| Compete | Internet web site metrics and analytics | Internet | 13 |
| FanFeedr Sports News | Sports news and information service | Sports | 13 |
| Google Books | Book search services | Reference | 13 |
| Google Desktop | Desktop search and gadgets | Search | 13 |
| Google Gmail OAuth | EMail service | Email | 13 |
| Google Maps Elevation | Get elevation data for any location | Mapping | 13 |
| Google Plus | Content sharing service | Social | 13 |
| Gowalla | Location aware social network | Social | 13 |
| NOAA National Weather Service (NWS) | Weather forecast database | Weather | 13 |
| Reddit | Social news service | News | 13 |
| Rotten Tomatoes | Movie Information and Reviews Database | Recommendations | 13 |
| Yahoo Widgets | Desktop widgets | Widgets | 13 |
| CityGrid | Local business directory search service | Shopping | 12 |
| ClearForest Semantic Web Services1 | Natural language processing tools | News | 12 |
| CNET | Shopping services | Shopping | 12 |
| Dropbox | Online storage provider | Storage | 12 |
| ESRI ArcGIS JavaScript | Mapping services | Mapping | 12 |
| Google Webmaster Tools | Web site management tools | Internet | 12 |
| Hoiio Voice | Global Telephony API | Telephony | 12 |
| Kayak | Travel search service | Travel | 12 |
| Multimap | Global online mapping service | Mapping | 12 |
| Yahoo Map Image | Map image creation service | Mapping | 12 |
| Zvents | Local events search and community | Events | 12 |
| AddThis Menu | Allows integration of AddThis sharing tools to websites | Internet | 11 |
| Amazon Mechanical Turk | Request services of humans | Other | 11 |
| AOL Instant Messenger | Instant messaging chat service | Chat | 11 |
| Disqus | Blog comments management | Blogging | 11 |
| Fire Eagle | Geo location sharing service | Social | 11 |
| Google Checkout | Shopping cart services | Shopping | 11 |
| Google Mashup Editor | Mashup creation tool extensions API | Tools | 11 |
| Grooveshark | Interact with Grooveshark music data | Music | 11 |
| Groupon | Group shopping service | Shopping | 11 |
| HotOrNot | Dating rating site | Social | 11 |
| MailChimp | Email List and Campaign management service | Email | 11 |
| MapQuest | Online mapping service | Mapping | 11 |
| New York Times Article Search | New York Times article archives | News | 11 |
| Rovi Cloud Services | Digital entertainment technology | Entertainment | 11 |
| SendGrid | Cloud based email service | Email | 11 |
| uClassify | Text classification services | Internet | 11 |
| UPS | Package shipping | Shipping | 11 |
| Yahoo Related Suggestions | Search suggestion service | Search | 11 |
| Amazon SimpleDB | Online database service | Database | 10 |
| COLOURlovers | Named colors and color palette services | Tools | 10 |
| CrunchBase | Directory of companies, people, and investors | Reference | 10 |
| Dapper | Service for API creation | Internet | 10 |
| Google Latitude | Location sharing service | Mapping | 10 |
| Google OpenID | OpenID login for Google account users | Security | 10 |
| Jaiku | Social messaging service | Messaging | 10 |
| LiveVideo | Video repository and user community | Video | 10 |
| Nexmo Wholesale SMS | Wholesale SMS API | Messaging | 10 |
| Simply Hired Jobs | Job search services | Job Search | 10 |
| Trulia | Real estate search | Real Estate | 10 |
| Vast | Structured web search | Search | 10 |
| Yahoo Mail | Web based email system | Email | 10 |
| Brightkite | Location sharing service | Social | 9 |
| Daylife | Online News Service | News | 9 |
| Evri | Recommendations and semantic search service | Recommendations | 9 |
| GitHub | Source code repository | Tools | 9 |
| Google Buzz | Social sharing service | Social | 9 |
| Google Single SignOn | Authentication for Google Apps | Security | 9 |
| 23 | Photo sharing service | Photos | 8 |
| 8coupons | Local deals aggregator | Shopping | 8 |
| Best Buy BBYOpen Products | eCommerce shopping services | Shopping | 8 |
| Cafe Press | Customized retail product service | Shopping | 8 |
| Discogs | Music database | Music | 8 |
| GetGlue | Social networking for entertainment service | Social | 8 |
| Google Client Authentication | Account authentication for installed applications | Security | 8 |
| Google Friend Connect | Social network service | Social | 8 |
| Google Gears Geolocation | User geographical positioning service | Mapping | 8 |
| Guardian | UK newspaper | News | 8 |
| Hoiio SMS | Global SMS API | Messaging | 8 |
| Jaduka | Internet and PSTN voice services | Telephony | 8 |
| Pownce | Social networking and micro-blogging service | Social | 8 |
| Revver | Video services | Video | 8 |
| Seatwave | Online marketplace for live events | Entertainment | 8 |
| ShareThis | Social link sharing service | Social | 8 |
| SlideShare | Presentation sharing community | Office | 8 |
| Twick.it | Social Explanation Engine | Blogging | 8 |
| Twitter Streaming | Public Twitter Stream | Social | 8 |
| What The Trend? | Twitter trending service | Social | 8 |
| Yahoo My Web Search | Personalized search services | Search | 8 |
| Yahoo Site Explorer | Web site analysis service | Internet | 8 |
| Yahoo Travel | Online travel services | Travel | 8 |
| Yahoo Weather | Weather data service | Weather | 8 |
| Your Mapper | Local Geodata For Your Apps | Mapping | 8 |
| Alexa Web Search | Web Search Engine | Search | 7 |
| Amazon RDS Relational Database Service | Relational database service in the cloud | Database | 7 |
| Bebo | Social network | Social | 7 |
| BigTribe | Location based advertising | Advertising | 7 |
| BuzzData | Data hosting and management service | Database | 7 |
| ChartLyrics Lyric | Lyrics database search service | Music | 7 |
| EchoSign | Document management and e-signature service | Enterprise | 7 |
| Facebook Real-time Updates | Real-Time Updates from Facebook | Social | 7 |
| Findory | Personalized news aggregation | News | 7 |
| Forvo | Online word pronunciation guide | Reference | 7 |
| Fotolia | Royalty free stock photos | Photos | 7 |
| geocoder.ca | Geocoding services for Canada | Mapping | 7 |
| Janrain Engage | Social networking login service | Security | 7 |
| Klout | Social metrics service | Internet | 7 |
| OpenSecrets | U.S. political data lookup | Government | 7 |
| Poly9 FreeEarth | 3D mapping service | Mapping | 7 |
| SecondLife | Virtual world | Games | 7 |
| The Movie DB | Movie, cast and image database | Entertainment | 7 |
| TweetPhoto | Twitter photo sharing service | Photos | 7 |
| UrbanDictionary | Slang dictionary lookup | Reference | 7 |
| Veoh | Internet television, video, and social platform | Video | 7 |
| WatchMouse | Web site monitoring service | Internet | 7 |
| Weather Underground (Wunderground) | Weather forecast service | Weather | 7 |
| Yahoo Music | Music and musician info and videos | Music | 7 |
| 7digital | Music downloads store | Music | 6 |
| Alexa Top Sites | Web site traffic rankings | Internet | 6 |
| Aonaware Dictionary | Dictionary lookup service | Reference | 6 |
| Aviary Effects | Photo filter and effects service | Photos | 6 |
| BBC Music | Music information service | Music | 6 |
| Billboard | Music chart service | Music | 6 |
| CloudMade | Mapping and geospatial web services | Mapping | 6 |
| FUTEF Wikipedia API | Third party Wikipedia web service | Reference | 6 |
| Goodreads | Book search and social book services | Other | 6 |
| Google Drive | Cloud storage service | Storage | 6 |
| Google Font | Web font service | Other | 6 |
| Google Shopping Search | Product search service | Shopping | 6 |
| Google Social Graph | Search service for finding social connections | Social | 6 |
| Google Street View Image | Street view image service | Photos | 6 |
| GovTrack.us | US Congress database service | Government | 6 |
| Grouper Video | Video sharing service | Media Management | 6 |
| Imeem | Social networking and media service | Social | 6 |
| Internet Video Archive | Movie trailers, music videos, and game trailers service | Video | 6 |
| LiveJournal | Blogging software | Blogging | 6 |
| Magento | eCommerce store creation and management service | Shopping | 6 |
| Meetup | Social events service | Social | 6 |
| Menu Mania | Restaurant search and review service | Food | 6 |
| Microsoft MapPoint | Mapping services | Mapping | 6 |
| Microsoft Silverlight Streaming | Streaming application management service | Other | 6 |
| Mobypicture | Mobile photo sharing service | Photos | 6 |
| MOO | Web based printing service | Photos | 6 |
| MyVox | Phone to web media voice services | Telephony | 6 |
| Ning | Social network platform | Social | 6 |
| Ontok | Geocode any US address | Mapping | 6 |
| Pinterest | Social photo curation platform | Social | 6 |
| RapLeaf | Enable Personalization for Consumers | Email | 6 |
| Ringful | Create rich voice and SMS mashups via simple RESTful API | Telephony | 6 |
| SharedBook | On-demand reverse publishing system | Other | 6 |
| Songkick | Music concert and event community | Music | 6 |
| Summize Twitter Search | Search Twitter tweets service | Search | 6 |
| Thrutu | Realtime apps for Android phones | Telephony | 6 |
| Tinysong | Music sharing service | Music | 6 |
| True Knowledge | General question and answers service | Search | 6 |
| Tweetmeme | Twitter link popularity service | Social | 6 |
| Walk Score | Real estate walk score service | Real Estate | 6 |
| WhitePages.com | People search service | Reference | 6 |
| Yahoo Audio Search | Music search services | Music | 6 |
| Zemanta | Blog authoring extension services | Blogging | 6 |
| Zoho | Online office suite | Office | 6 |
| Zooomr | Photo and text message sharing service | Photos | 6 |
| 43Things | Social goal setting | Goal Setting | 5 |
| Adobe on AIR Bus Tour | Services to track Adobe AIR product launch | Other | 5 |
| Amazon Fulfillment Web Service | eCommerce fullfillment service | Shopping | 5 |
| Amazon SES | Email sending service | Email | 5 |
| BackType | Social site comment repository services | Blogging | 5 |
| Bandsintown | Music concerts and recommendations service | Music | 5 |
| Bing Maps Geocode | Geocoding service | Mapping | 5 |
| Blip.fm | Social music service | Music | 5 |
| Bloglines | Online feed aggregator | Feeds | 5 |
| Cicero | Address-based district matching and elected official lookup service | Government | 5 |
| Clockwork SMS | Bulk SMS messaging service | Messaging | 5 |
| eBay Shopping | eBay shopping service | Shopping | 5 |
| EVE Online | Massively multiplayer online science fiction games | Games | 5 |
| Eventbrite | Event registration, marketing, and promotion services | Events | 5 |
| Formstack | Online forms service | Internet | 5 |
| FreshBooks | Online invoicing and time tracking | Financial | 5 |
| Google Apps Email Migration | Migrate existing email systems to Google Apps | Email | 5 |
| Google Book Search Book Viewability | Book search | Search | 5 |
| Google Directions | Driving directions web service | Mapping | 5 |
| Google Wave | Collaboration and communication platform | Social | 5 |
| Google Web Authentication | Account authentication proxy for web-based applications | Security | 5 |
| Highrise | Online contact manager and CRM | Enterprise | 5 |
| Hyves | Social networking and events service | Social | 5 |
| identi.ca | Microblogging service | Blogging | 5 |
| IP Location | Find user location via IP address | Internet | 5 |
| Kiva | Person-to-person micro-lending service | Financial | 5 |
| KooKoo | Cloud based telephony application platform | Telephony | 5 |
| Lat49 | Geo-targeted advertising for online maps | Advertising | 5 |
| LongURL | URL expanding service | Internet | 5 |
| Ma.gnolia | Social bookmarking service | Bookmarks | 5 |
| Map24 AJAX | Mapping services | Mapping | 5 |
| Maponics | Mapping data service | Mapping | 5 |
| MyBlogLog | Social footprint sharing service | Social | 5 |
| New York Times Newswire | All recent New York Times articles in summary | News | 5 |
| NPR | US National Public Radio | News | 5 |
| OpenSocial | Common APIs for building social applications | Social | 5 |
| Ordr.in | Restaurant E-Commerce System | Food | 5 |
| Orkut | Social network from Google | Social | 5 |
| Outside.in | Hyperlocal news and information aggregator | News | 5 |
| PicPlz | Photo sharing and filtering platform | Photos | 5 |
| Plaxo | Address book management | Enterprise | 5 |
| PriceRunner | Shopping comparision engine | Shopping | 5 |
| Pusher | Real-time push service | Tools | 5 |
| Rezgo | Travel tour booking service | Travel | 5 |
| Riya | Photo search | Photos | 5 |
| Scribd | Document viewer and handling service | Office | 5 |
| Shizzow | Location sharing social networking | Social | 5 |
| Stripe | Online payment service | Payment | 5 |
| TripIt | Online travel itinerary service | Travel | 5 |
| TwitterCounter | Twitter user statistics data | Social | 5 |
| WebThumb | Thumbnail image generation service | Internet | 5 |
| Widgetbox | Create and distribute your widget through the world's largest widget gallery | Widgets | 5 |
| Windows Live Contacts Control | Contacts control | PIM | 5 |
| Windows Live Expo | Online classifieds service | Shopping | 5 |
| Windows Live Spaces | Blog services | Blogging | 5 |
| Yahoo Internet Location Platform | Spatial interoperability and geographic discovery | Mapping | 5 |
| Yahoo Placemaker | Geo-enrichment service | Mapping | 5 |
| Zappos | Online retail store | Shopping | 5 |
| 30 Boxes | Calendar service | Calendar | 4 |
| AddThis Sharing Endpoints | Content sharing service | Internet | 4 |
| Adobe Share | Service for publishing and sharing documents | Storage | 4 |
| aideRSS | RSS feed management and filtering service | Feeds | 4 |
| Amazon Flexible Payments Service | eCommerce payments service | Payment | 4 |
| Amazon Queue Service | Internet-based queuing service | Other | 4 |
| AMEE | Carbon and energy calculation service | Science | 4 |
| Backpack | Online information manager | Office | 4 |
| Bandcamp | Music information including track data and lyrics | Music | 4 |
| Biblia.com | Online bible reference service | Reference | 4 |
| BlankSlate | Web App Building Blocks | Database | 4 |
| Blip.tv | Video upload and sharing service | Video | 4 |
| Buzznet | Photo sharing | Photos | 4 |
| CareerBuilder | Job and recruiting service | Job Search | 4 |
| Clickatell | SMS Messaging Services | Messaging | 4 |
| DHL | Package shipping services | Shipping | 4 |
| Dipity | Interactive timeline creation services | Photos | 4 |
| Drop.io | Content sharing service | File Sharing | 4 |
| eBay Finding | eBay Search service | Search | 4 |
| Expedia | Travel booking service | Travel | 4 |
| Factual | Definitive Global Data. Fast, Rich APIs. | Database | 4 |
| FlightStats | Live flight aircraft and delays tracking | Travel | 4 |
| Follow The Money | Database of US campaign contributions | Government | 4 |
| Friendster | Social networking service | Social | 4 |
| Genability | Electricity price data service | Reference | 4 |
| Gigablast | Search service | Search | 4 |
| Google Distance Matrix | Travel distance based on Google Maps | Mapping | 4 |
| Google Gears | Tools for offline browser extensions | Other | 4 |
| Google Health | Health data service | Medical | 4 |
| Google URL Shortener | URL shortening service | Utility | 4 |
| Gruvr | Live music and concert information | Music | 4 |
| Hi5 | Social network service | Social | 4 |
| iLike | Music streaming and playlist service | Music | 4 |
| Internet Archive | Non-profit Internet library and historical archive | Internet | 4 |
| Ipernity | Media sharing service | Media Management | 4 |
| Jigsaw | Business information and contacts directory | Enterprise | 4 |
| Kelkoo | Comparison shopping service | Shopping | 4 |
| Loxcel | Location based mapping service | Mapping | 4 |
| Moreover | News delivery | News | 4 |
| Naver | Korean search engine | Search | 4 |
| NCBI Entrez | Life sciences search services | Medical | 4 |
| Nestoria | UK real estate listings | Real Estate | 4 |
| New York Times Best Sellers | New York Times best-seller lists data | News | 4 |
| New York Times Congress | US Congress historical data | Government | 4 |
| New York Times Movie Reviews | NY Times newspaper movie review archives | Video | 4 |
| NewsGator | Feed aggregation | Feeds | 4 |
| openDada | Social music service | Music | 4 |
| PriceGrabber | Comparison shopping engine | Shopping | 4 |
| Raw Sugar | Web directory service | Other | 4 |
| Shopify | Online shopping cart service | Shopping | 4 |
| SimpleGeo | Location services platform | Mapping | 4 |
| Skydeck | Mobile services | Telephony | 4 |
| sletoh.com | Hotel price comparison service | Travel | 4 |
| SNOCAP | Digital music marketplace | Music | 4 |
| Thumbalizr | Thumbnail images of websites service | Photos | 4 |
| Topsy | Twitter search service | Search | 4 |
| Twitgoo | Twitter image sharing service | Social | 4 |
| Twittervision | Location based data for the Twitter service | Messaging | 4 |
| TypePad | Blog management | Blogging | 4 |
| Urban Mapping Mapfluence | Urban geo-spatial data services | Mapping | 4 |
| Userplane | Communication software for online communities | Social | 4 |
| Viddler | Online video service | Video | 4 |
| VideoSurf | Video search service | Video | 4 |
| WebKnox | Entity and fact extraction tool | Tools | 4 |
| WebShots | Photo sharing service | Photos | 4 |
| Windows Live Gadgets | Online gadgets service | Widgets | 4 |
| Yahoo Ads | Online ad management | Advertising | 4 |
| Yahoo Search Marketing | Search advertising platform | Advertising | 4 |
| Yes Broadcast DB | Radio station search, now-playing, logs and charts | Music | 4 |
| Yipit | Local coupon aggregation service | Shopping | 4 |
| ZoomInfo | Information search services | Reference | 4 |
| 500px | Online community for photographers | Photos | 3 |
| Active | Events, Activities, Races, Tournaments, Classes | Events | 3 |
| AddThis Services | AddThis Integration Service | Internet | 3 |
| Akismet | Blog spam prevention service | Blogging | 3 |
| Amazon CloudWatch | Cloud asset monitoring and management | Internet | 3 |
| AOL Open Auth | Authentication services | Security | 3 |
| Authorize.Net | Internet based payment gateway services | Payment | 3 |
| BackTweets | Twitter link search service | Search | 3 |
| Bing Maps Search | Mapping search service | Mapping | 3 |
| Bing Translator | Web translation tool | Tools | 3 |
| Blinksale | Online invoicing services | Financial | 3 |
| Blinkx | Video search service | Video | 3 |
| Bol.com | Dutch online retail store | Shopping | 3 |
| BT Web21C | Communications services APIs | Telephony | 3 |
| ChannelAdvisor | E-Commerce solutions | Shopping | 3 |
| Cloudmade Leaflet | Interactive maps service | Mapping | 3 |
| Dailymotion | Video sharing site | Video | 3 |
| DataUnison eBay Research | eBay pricing and sales trend data | Shopping | 3 |
| Digital Podcast | Podcast search | Music | 3 |
| EditGrid | Online spreadsheet | Office | 3 |
| Enthusem | Service to send printed greeting cards | Social | 3 |
| Ergast | Motor racing data service | Sports | 3 |
| ESPN | Online sports news platform | Sports | 3 |
| ESV Bible Lookup | Bible lookup service | Reference | 3 |
| Face.com | Face Recognition | Photos | 3 |
| Geograph | British Isles photo service | Photos | 3 |
| GeoIQ | Geo Data, Visualization, and Analysis | Mapping | 3 |
| Google Finance Portfolio | Investing portfolio services | Financial | 3 |
| Google Safe Browsing | Security service to verify URLs | Security | 3 |
| Google Sites | Access data from the Google Sites service | Tools | 3 |
| Gravatar | Online Avatar Service | Utility | 3 |
| GreatSchools | Education data provider | Education | 3 |
| Howcast | How-to video search service | Video | 3 |
| ImageShack | Online photo and video sharing service | Media Management | 3 |
| InfoChimps Social | Twitter Metrics and Analytics | Social | 3 |
| Instagram Real-time | Real-time image sharing service | Photos | 3 |
| iTunes & App Store Search | Apple product search | Media Search | 3 |
| Jamendo | Access to a range of music related information | Music | 3 |
| Kuler | Adobe web service for creating color themes | Other | 3 |
| Kynetx | Event-driven application platform | Internet | 3 |
| Layar | Mobile augmented reality service | Other | 3 |
| LibraryThing | Books database and community | Reference | 3 |
| Livekick | Concert and events recommendation service | Events | 3 |
| MapLight | Government database linking contributions and votes | Government | 3 |
| Mappy | French mapping service | Mapping | 3 |
| Mendeley | Academic research paper sharing service | Education | 3 |
| Microsoft adCenter | Online advertisting services | Advertising | 3 |
| MusixMatch | Song lyrics search engine | Music | 3 |
| NASA | Satellite mapping images | Mapping | 3 |
| New York Times Campaign Finance | U.S. campaign finance data | Government | 3 |
| Norway Weather | Weather data service | Weather | 3 |
| Notifixio.us | XMPP pubsub notification platform | Internet | 3 |
| Ordnance Survey OpenSpace | Online mapping service | Mapping | 3 |
| PDXCouncilConnect | Portland (Oregon) City Council voting service | Government | 3 |
| PeerIndex | Social Media Analytics | Social | 3 |
| PeoplePond | Identity management service | Security | 3 |
| PhishTank | Community site for tracking phishing | Security | 3 |
| Picnik | Online photo editing service | Photos | 3 |
| PostalMethods | Web-to-Post service for sending letters | Messaging | 3 |
| Posterous | Content sharing service | Social | 3 |
| QuickFuse | Telephony service | Telephony | 3 |
| Readmill | Online eBook discussion platform | Social | 3 |
| RealtyBaron Answers | Real estate question and answer service | Real Estate | 3 |
| Scribd iPaper | Document embedding service | Office | 3 |
| Seesmic | Video dashboard and community | Video | 3 |
| Sensebot | Semantic search service | Search | 3 |
| Shadows | Social bookmarking and community | Bookmarks | 3 |
| SimpleAPI | Web site thumbnail image creation | Internet | 3 |
| Skyhook Wireless | Wifi positioning services | Other | 3 |
| Snipshot | Online photo editing service | Photos | 3 |
| Social Actions | Volunteer and charity opportunities services | Other | 3 |
| SplogSpot | Database of spam blogs | Blog Search | 3 |
| SpringWidgets | Widget platform | Widgets | 3 |
| SugarSync | On demand computer backup and synchronization | Storage | 3 |
| Superfeedr | Realtime feed parsing service | Feeds | 3 |
| Swivel | Business data visualization and analysis | Financial | 3 |
| Syndic8 | News feed aggregation services | Feeds | 3 |
| TourCMS Marketplace | Online travel reservation service | Travel | 3 |
| Ustream.TV | Live video streaming service | Video | 3 |
| We Feel Fine | Art project that harvests feelings from blogs | Other | 3 |
| WebAIM | Web based instant messaging | Chat | 3 |
| Weblogs | Blog ping service | Blogging | 3 |
| Windows Live Contacts | Contacts database | PIM | 3 |
| Windows Live ID Web Authentication | Web based authentication service | Security | 3 |
| Windows Sidebar Gadgets | Desktop gadgets | Widgets | 3 |
| WordPress.com | Blogging platform | Blogging | 3 |
| WordPress.org | Blogging platform | Blogging | 3 |
| World Weather Online | Global weather information services | Weather | 3 |
| Yahoo Address Book | Address book service for Yahoo accounts | Other | 3 |
| Yahoo BBauth | Browser based authentication service | Security | 3 |
| Yahoo Fantasy Sports | Fantasy sports data on leagues, teams and players | Sports | 3 |
| Yahoo Messenger | Instant messaging | Chat | 3 |
| Yahoo Music Engine | Desktop music player | Music | 3 |
| Yahoo PlaceFinder | Geocoding of named places | Mapping | 3 |
| Yolink | Semantic search | Search | 3 |
| zanox | Internet monetization services | Advertising | 3 |
| ZeeMaps | Embedded maps and international geocoding | Mapping | 3 |
| Zendesk | Help desk service | Internet | 3 |
| ZoomIn | New Zealand mapping service | Mapping | 3 |
| #blue | Text messaging storage service | Messaging | 2 |
| 12seconds.tv | 12-second videoblogging | Video | 2 |
| 3dCart | Online shopping cart service | Shopping | 2 |
| 5min | Instructional video database | Video | 2 |
| Active.com | Active lifestyle community database | Sports | 2 |
| Adility | Local coupon service | Shopping | 2 |
| AgentRank | Real estate agent sales, forecasts, and reviews | Real Estate | 2 |
| Airbrake | Application errors tracking and reporting service | Tools | 2 |
| Alchemy | Semantic text and data dection and extraction | Tools | 2 |
| Alexa Site Thumbnail | Thumbnail images of web site home pages | Internet | 2 |
| Amazon DynamoDB | NoSQL database service | Database | 2 |
| Amplify | Content analysis service | Internet | 2 |
| AOL Open Mail | Email services | Email | 2 |
| AOL Pictures | Online photo management | Photos | 2 |
| ArtBeat | NYC/Tokyo art events information | Events | 2 |
| Australian Business Number Lookup | Australian business number refernece service | Government | 2 |
| Autodesk Freewheel | CAD model viewing, printing and collaboration | Other | 2 |
| Aviary Suite | Image editing service | Tools | 2 |
| Aviary Web | Image editing service | Photos | 2 |
| Avvo | Lawyer and doctor directory service | Reference | 2 |
| awe.sm | Conversion tracking for social media | Social | 2 |
| BatchBook | Customer relationship management | Enterprise | 2 |
| BibSonomy | Social bookmarking | Bookmarks | 2 |
| Big Huge Thesaurus | Thesaurus lookup services | Reference | 2 |
| BigCommerce | Ecommerce platform for building online stores | Shopping | 2 |
| billomat | Online billing service | Financial | 2 |
| Bing Maps Routes | Mapping route creation service | Mapping | 2 |
| BioID Web Services | Face and voice biometrics service | Security | 2 |
| bLaugh Comics | Online comic strip | Other | 2 |
| Blekko | Search engine | Search | 2 |
| Blogama (IPInfoDB) | IP geolocation service | Internet | 2 |
| Blogmarks | Social bookmarking | Bookmarks | 2 |
| Blue Dot | Content sharing community | Bookmarks | 2 |
| BookingMarkets | Travel web site platform | Travel | 2 |
| BookMooch | Books exchange service | Other | 2 |
| Brighter Planet Emission Estimates | Real-time carbon footprint estimates | Other | 2 |
| Broadsoft Xtended | VoIP telephony services | Telephony | 2 |
| Burstn | Instant photo sharing and storage service | Photos | 2 |
| Capitol Words | Track words used by US government representatives | Government | 2 |
| Careerjet | Job search service | Job Search | 2 |
| Carma | Carbon emissions data | Other | 2 |
| ChaCha | SMS question and answer service | Answers | 2 |
| Clicky | Web site analytics | Internet | 2 |
| CloudMine | Backend as a service platform | Backend | 2 |
| Cohuman | Project task coordination tool | Project Management | 2 |
| Collecta | Real time search service | Search | 2 |
| ConstantContact | Email marketing service | Email | 2 |
| Context.IO | Email inbox as data source service | Email | 2 |
| DealSurf | Daily deal aggregator service | Shopping | 2 |
| DigitalBucket | Online storage service | Storage | 2 |
| Drawloop | API to merge, convert and combine documents | Office | 2 |
| Dribbble | Webdesign showcase | Other | 2 |
| Edmunds.com Vehicle | Automobile information | Reference | 2 |
| Education.com | School test scores and other data | Education | 2 |
| Endicia Label Server | Web based postage service | Shipping | 2 |
| Evernote | The global platform for human memory | Utility | 2 |
| Evoca | Phone to web media voice services | Telephony | 2 |
| Facebook Ads | Advertising management service | Advertising | 2 |
| Facebook Chat | Integrate facebook chat | Chat | 2 |
| FAROO | Web search engine | Search | 2 |
| Faviconz | Database of favicons | Internet | 2 |
| Feedzilla | News feed aggregator | Feeds | 2 |
| Fitbit | Fitness Tracking Tools | Sports | 2 |
| Foxrate | Currency exchange rates | Financial | 2 |
| Framey | Website video recording tool | Video | 2 |
| FreebieSMS | Bulk SMS messaging service | Messaging | 2 |
| fring | Mobile community development platform | Chat | 2 |
| GamesRadar | Video game cheats and guides services | Games | 2 |
| Garmin MotionBased | GPS services and mapping | Sports | 2 |
| Geoloqi | Location sharing service | Mapping | 2 |
| Global Biodiversity Information Facility | Species datasets | Reference | 2 |
| GlobeXplorer | Mapping services | Mapping | 2 |
| Google Closure Compiler | JavaScript optimization service | Tools | 2 |
| Google Cloud Print | Cloud printing service | Office | 2 |
| Google Code Search | Code search service | Search | 2 |
| Google Email Settings | Allows administration of Google Apps email accounts | Email | 2 |
| Google Notebook | Online notebook service | Utility | 2 |
| Google Page Speed Online | Website speed scores and optimization | Internet | 2 |
| Google Prediction | Artificial intelligence service | Tools | 2 |
| Google Tasks | Personal task list service | PIM | 2 |
| Google Translator Toolkit | Document translation service | Tools | 2 |
| HAMweather Aeris | Weather data service | Weather | 2 |
| hon.jp | Japanese eBook metadata service | Shopping | 2 |
| Hunch | Questions and answers service | Answers | 2 |
| I Heart Quotes | Quotes and fortunes generator | Reference | 2 |
| iFixit | Online repair manual database | Reference | 2 |
| iGoogle Themes | Google homepage design service | Other | 2 |
| Imgur | Photo sharing service | Photos | 2 |
| IMified | Instant messenger buddy | Chat | 2 |
| IMSAS | Background screening data services | Database | 2 |
| Infochimps IP Intelligence Geolocation | Data mining tool | Internet | 2 |
| Infosniper.net | Internet IP geolocation service | Internet | 2 |
| Instapaper | Bookmark long web pages | Bookmarks | 2 |
| Interfax | Fax services | Fax | 2 |
| IP Address Lookup | Determine IP address from domain name | Internet | 2 |
| IP2Location | IP lookup service | Internet | 2 |
| ISBN db | Books database | Reference | 2 |
| Issuu Search | Online publication service | File Sharing | 2 |
| JoyRack Games | Flash games directory | Games | 2 |
| Juju Publisher | Job search engine | Job Search | 2 |
| Kewego Video | Video platform service | Video | 2 |
| Kyte | Streaming interactive television service | Video | 2 |
| LazyTune | Music search services | Music | 2 |
| Library of Congress SRW | Information database search | Reference | 2 |
| LinkUp Job Search Engine | Job search service | Job Search | 2 |
| Lockerz | Photo sharing service | Photos | 2 |
| Lulu Publishing | Programmatically publish and sell books | Other | 2 |
| LyrDB | Lyrics Database | Music | 2 |
| Mapfluence | Mapping infrastructure and data access | Mapping | 2 |
| Mapstraction | Mapping API abstraction layer | Mapping | 2 |
| MetaCarta | Location and geotagging services | Mapping | 2 |
| Microsoft MSDN | Technical reference library | Reference | 2 |
| Microsoft start.com | Portal service | Widgets | 2 |
| Microsoft Translator | Web page and subpage language translation | Utility | 2 |
| MindTouch Deki Wiki | Wiki platform service | Wiki | 2 |
| Mobivity | SMS marketing messaging service | Messaging | 2 |
| Mochi Media Flash Games | Game database listing service | Games | 2 |
| Mogreet | Mobile marketing service | Messaging | 2 |
| MusicMobs | Social music service | Music | 2 |
| Myplaylist | Photo slideshow for music services | Music | 2 |
| MyWot | Website reputation service | Security | 2 |
| NetSuite | On-demand business application suite | Enterprise | 2 |
| New Relic | Web application monitoring service | Internet | 2 |
| New York Times TimesPeople | New York Times service for TimesPeople data | News | 2 |
| NewsCloud | Social news service | News | 2 |
| NOAA Climate Data Online | Climate tracking data service | Weather | 2 |
| NYC Open Data | New York City data collection | Government | 2 |
| Omgili | Search service for user generated content | Search | 2 |
| Omnidrive | Online storage services | Storage | 2 |
| OneLogin | Single sign-on solution | Security | 2 |
| Ontok Wikipedia | Encyclopedia data access | Wiki | 2 |
| Pageflakes | Personalized start page and widgets | Widgets | 2 |
| Payment Vision Pay | Payment processing service | Payment | 2 |
| PDF Generator | PDF file conversion service | Office | 2 |
| Phanfare | Photo and video sharing service | Media Management | 2 |
| pho.to | Online photo editing and presentation platform | Photos | 2 |
| Pikeo | Picture sharing service | Photos | 2 |
| Pinboard | Social bookmarking service | Bookmarks | 2 |
| Pingdom | Web site monitoring and reporting services | Internet | 2 |
| Plancast | Social event service | Social | 2 |
| Playme | Music streaming, download, radio and playlist service | Music | 2 |
| Plazes | Location based social network | Social | 2 |
| PLoS Search | Scientific literature search service | Reference | 2 |
| PriceSpin | Shopping Price Comparison Servcie | Shopping | 2 |
| Producteev | Multi-task collaboration tool | Tools | 2 |
| ProgrammableWeb | API for APIs | Internet | 2 |
| PubNub JavaScript Push | High-volume messaging service | Messaging | 2 |
| PubSub | Blog and feed search | Blog Search | 2 |
| QuickBlox | Mobile application backend service | Backend | 2 |
| Qwerly | Social Web Search Engine | Social | 2 |
| Rackspace Cloud Files | Cloud file hosting | Storage | 2 |
| Readability | Bookmarking & Reading Service | Internet | 2 |
| Recognize.im | Image recognition service | Photos | 2 |
| RetailMeNot.com Community Ideas | Online coupons and discounts | Shopping | 2 |
| Reuters Spotlight | Reuters.com content service | News | 2 |
| Sears | Retail shopping catalog | Shopping | 2 |
| SemanticHacker | Semantic discovery service | Search | 2 |
| SEOmoz | Search engine optimization services | Search | 2 |
| ShopStyle | Shopping database services | Shopping | 2 |
| SMSMyBus | Madison transit service | Transportation | 2 |
| Snapr | Real-time geosocial photosharing service | Photos | 2 |
| Social Archive | Status message search engine | Search | 2 |
| Sparklines | Graph generation service | Other | 2 |
| Spock | People search on the Web | Search | 2 |
| SpokenBuzz | Voice services portal | Telephony | 2 |
| Spore | Spore game database and content | Games | 2 |
| Steply | Photo sharing mobile application | Photos | 2 |
| StrikeIron Global SMS Pro | SMS messaging services | Messaging | 2 |
| StrikeIron Super Data Pack | APIs for variety of reference data sources | Reference | 2 |
| StrikeIron US Census | Census data information service | Reference | 2 |
| Stupeflix | Video creation service | Video | 2 |
| Tagalus | A dictionary for Twitter hashtags | Social | 2 |
| Taglets | Tagging service | Tagging | 2 |
| TagTooga | Tag based Internet directory | Tagging | 2 |
| Tailrank | Blog search and news aggregation service | Blog Search | 2 |
| TelAPI | Telephony services for applications | Telephony | 2 |
| Tiny-URL Open | URL shortening tool | Tools | 2 |
| Tinylink | URL shortening service | Internet | 2 |
| TokBox | Authentication services | Security | 2 |
| Topicalizer | Document analysis service | Other | 2 |
| TownMe Geo | Business listings, POI, reverse geocoder | Mapping | 2 |
| tr.im | URL shortening service | Internet | 2 |
| Trailer Addict | Movie trailer viewing service | Video | 2 |
| Travel Booking Engine | Online travel booking service | Travel | 2 |
| Travelport | Travel booking service | Travel | 2 |
| Twitter Grader | Twitter user ratings service | Social | 2 |
| UPC Database | UPC lookup service | Shopping | 2 |
| US Yellow Pages | US yellow pages telephone directory | Mapping | 2 |
| USGS Elevation Query Service | Determine elevation based on latitude and longitude | Mapping | 2 |
| VHX | Web video dashboard | Video | 2 |
| ViaMichelin | Mapping, directions, and travel booking services | Travel | 2 |
| Vodpod | Video sharing and discovery | Video | 2 |
| WareNet CheckWare | Hardware product database | Reference | 2 |
| Weather Central | XML Weather feed | Weather | 2 |
| WHERE GPS | Mobile GPS widget platform | Mapping | 2 |
| Windows Live Data | Service for users to control data access | Security | 2 |
| WiserEarth | Environmentalists online community | Other | 2 |
| Wolfram Alpha | Computational knowledge and search engine | Reference | 2 |
| Wordnik | Dictionary, spelling, and other word reference | Reference | 2 |
| World Time Engine | World clock and time zone service | Utility | 2 |
| WorldCat Search | Library data access | Reference | 2 |
| Yahoo Geo Location | Geolocation service for words and phrases | Mapping | 2 |
| Yahoo GeoPlanet | Geo-referencing service | Mapping | 2 |
| Yahoo Live | Live video streaming service | Video | 2 |
| Yandex | Russian search engine | Search | 2 |
| Yellow | Canadian business listings service | Search | 2 |
| YouTXT | SMS text messaging service | Messaging | 2 |
| Zenfolio | Photo sharing platform | Photos | 2 |
| .tel | Access to .tel DNS | Internet | 1 |
| 4Shared | File Sharing Service | File Sharing | 1 |
| 8tracks | Music playlist creation service | Music | 1 |
| Abbreviations | Abbreviated words services | Reference | 1 |
| Acapela | Voice as a service | Tools | 1 |
| AccuWeather | Weather forecast service | Weather | 1 |
| ActBlue | Democratic fundraising service | Government | 1 |
| Activ Financial | Financial market data services | Enterprise | 1 |
| Activa Live Chat | Live Chat Platform | Chat | 1 |
| AddThis Analytics | Content sharing analytics data service | Internet | 1 |
| Aden Forshaw's The Cat | Random cat picture service | Photos | 1 |
| Adobe Social | Social network connection platform | Social | 1 |
| Aevum Obscurum | Online multiplayer strategy game | Games | 1 |
| After the Deadline | Spelling, style, and grammar checking | Blogging | 1 |
| Agendize Action | Business conversion tools platform | Enterprise | 1 |
| AIM Phoneline | Voice Over IP Internet telephony services | Telephony | 1 |
| AlchemyAPI Keyword and Term Extraction | Text analysis and extraction tool | Utility | 1 |
| Alibris | Marketplace for books, movies and music | Shopping | 1 |
| All for Good | Find and share volunteer opportunities | Other | 1 |
| Allociné Movie | French-language movie and TV information service | Entertainment | 1 |
| Allogarage | French car dealership reviews and recommendations | Shopping | 1 |
| AlternativeTo | Software application recommendations | Recommendations | 1 |
| Amazon Elastic MapReduce | MapReduce data processing service | Tools | 1 |
| Amazon Historical Pricing | Historical product sales data | Shopping | 1 |
| Amazon Redshift | Data warehouse service | Database | 1 |
| Amazon SNS | Application notification service | Messaging | 1 |
| Amazonca | Online barcode database | Reference | 1 |
| Ambassador | Social Media Referral Software | Social | 1 |
| AngelList | Startup financing community | Social | 1 |
| AOL Video Upload | Video upload and sharing service | Video | 1 |
| Apicultur Word Lemmatizer | Language analysis service | Tools | 1 |
| APIfy | Create APIs from structured web data | Internet | 1 |
| App.net | Social network and social feed service | Social | 1 |
| AppHarbor | .NET application deployment service | Internet | 1 |
| ArcWeb | Mapping and GIS services | Mapping | 1 |
| Are You Watching This | Algorithms identify in-progress, exciting sporting events | Sports | 1 |
| ARKive | Animal Information Service | Education | 1 |
| ArtistData | Artist information retrieval service | Music | 1 |
| arXiv | Academic research repository | Reference | 1 |
| Atlassian Bitbucket | Online distributed version control service | Internet | 1 |
| Australia Post | Australian postal service | Shipping | 1 |
| Authentic Jobs | Job search services for developers and designers | Job Search | 1 |
| AuthorityLabs Account | SEO Rank checking service | Internet | 1 |
| AuthorityLabs Partner | SEO Rank checking service | Internet | 1 |
| AvantLink | Affiliate marketing network | Shopping | 1 |
| AwardWallet | Loyalty program management service | Financial | 1 |
| Baby Names | International baby naming services | Reference | 1 |
| Baidu | Online marketing service | Advertising | 1 |
| Barcelona Bicing | Bicing station data | Reference | 1 |
| BART | Transit tracking service for San Francisco, California | Transportation | 1 |
| Beatport | Electronic music downloads | Music | 1 |
| BeenVerified | Authentication services | Security | 1 |
| Beer Mapping | Brewery data and mapping services | Food | 1 |
| BeliefNetworks | Semantic Intelligence, Site recommendations service | Recommendations | 1 |
| Betfair | Online sports betting exchange | Other | 1 |
| Bible Gateway | Bible lookup services | Other | 1 |
| Billeo Active eWallet | Online payments management service | Payment | 1 |
| Bing Maps Geocode Dataflow | Geocoding service | Mapping | 1 |
| Bing Traffic | Traffic information service | Travel | 1 |
| Biodiversity Heritage Library | Digital biodiversity library | Science | 1 |
| Block Avenue Neighborhood Reviews | US neighborhood and street review service | Other | 1 |
| BooRah Restaurant Search | Restaurant search service | Search | 1 |
| Box.net Embedit | Media embedding service | Tools | 1 |
| Boxcar | Social messaging aggregation service | Social | 1 |
| Brewery DB | Your Complete Brewery and Beer API | Reference | 1 |
| Brightcove | Video publishing service | Video | 1 |
| Brooklyn Museum | Museum online collection access | Education | 1 |
| Brown Paper Tickets | Events Listing and Ticketing Service | Events | 1 |
| Buffer | Tweet management and scheduling service | Social | 1 |
| Buildasearch | BuildaSearch Site Search Services | Search | 1 |
| Bump | Mobile device data exchange service | Telephony | 1 |
| Business.gov | US government small business resources | Government | 1 |
| buySAFE | E-commerce trust network | Security | 1 |
| Campaign Monitor | Email List and Campaign management service | Email | 1 |
| Campfire | Business messaging service | Chat | 1 |
| car2go | Car booking service and local driver's information | Transportation | 1 |
| CartoDB | Geospatial data and map creation service | Mapping | 1 |
| Checkvist | Online collaborative outliner and task list management | PIM | 1 |
| Cheezburger | Online humor and lolcat service | Photos | 1 |
| Chirpio | Social rating tool | Social | 1 |
| Cirip | Microblogging service | Blogging | 1 |
| City and State by Zip Code | Address lookup service | Reference | 1 |
| CitySourced | Mobile civic engagment tool | Government | 1 |
| Cleartrip | Travel booking services | Travel | 1 |
| Cligs | URL shortening services with analytics | Internet | 1 |
| Clipta | Video Search | Video | 1 |
| CloudApp | File sharing and cloud-based storage service | Storage | 1 |
| Cloudspeakers | Music information database | Music | 1 |
| Cloudvox | Voice application platform | Telephony | 1 |
| ConceptShare | Design and review collaboration services | Project Management | 1 |
| Connotea | Bookmark and reference sharing for researchers | Bookmarks | 1 |
| Context Voice | Tool to track online engagement | Tools | 1 |
| CorpWatch | Corporation accountability research service | Other | 1 |
| Cownt Us | Web site analytics | Internet | 1 |
| Creative Commons | Licensing engine integration | Other | 1 |
| cross.io | Cross Service Syndication | Other | 1 |
| CrowdFlower | Crowdsourcing Service | Other | 1 |
| CTA Bus Tracker | Chicago transit tracking service | Transportation | 1 |
| Currencies Exchange Rates | Currency exchange rates service | Financial | 1 |
| CyberSource Simple | Online payment service | Payment | 1 |
| D&B Direct | Commercial business information service | Reference | 1 |
| DabbleDB | Online database service | Database | 1 |
| Dailyplaces | Location based microblogging platform | Social | 1 |
| Dance-Tunes | Electronic music downloads | Music | 1 |
| DandyId | Social graph management services | Social | 1 |
| Data.gov.uk | Public government database | Government | 1 |
| Deal Magic | List of Daily Deals | Shopping | 1 |
| deCarta | Location-based services | Mapping | 1 |
| Deezer | Music streaming service | Music | 1 |
| Democracy In Action | eAdvocacy services for nonprofits | Government | 1 |
| deviantART | Social network for artists | Social | 1 |
| Dezrez | Real estate listing service | Real Estate | 1 |
| DigitalNZ | New Zealand metadata database | Reference | 1 |
| Diigo | Research bookmarking service | Bookmarks | 1 |
| Direct Textbook | Book price comparison service | Shopping | 1 |
| Directed Edge | Content linking services | Social | 1 |
| dlvr.it | Social media content syndication service | Social | 1 |
| DNS Tools | DNS address resolving service | Tools | 1 |
| DNSimple | Domain management service | Internet | 1 |
| Doba | eCommerce service | Enterprise | 1 |
| Docstoc | Document sharing service | Office | 1 |
| DoIt | Task Management System | PIM | 1 |
| Domain | Domain registry and whois lookup service | Internet | 1 |
| DomainTools | Current & historical Whois and network data | Internet | 1 |
| dopplr | Community travel service | Travel | 1 |
| Dun and Bradstreet Business Verification | Research company background data | Reference | 1 |
| Dun and Bradstreet Credit Check | Credit quick check web service | Financial | 1 |
| Dwolla | Online payment processing service | Payment | 1 |
| Earth911 Search | Recycling directory search service | Search | 1 |
| EarthTools | Web services for geographical information | Tools | 1 |
| EasyUtil | Recommendation service | Recommendations | 1 |
| eBay Merchandising | eBay item and product recommendation service | Shopping | 1 |
| ECGridOS EDI | Web Services Communications API | Tools | 1 |
| EEA Discomap | Environmental Mapping Service | Mapping | 1 |
| Elance | Online job marketplace | Job Search | 1 |
| ElderCare Locator | Eldercare search service | Search | 1 |
| Eli Lilly Clinical Open Innovation | Clinical trial information and data service | Medical | 1 |
| Embedly | Rich media embed utility | Video | 1 |
| Empora Evergreen | UK fashion search service | Search | 1 |
| EPA Station Catalog | EPA monitoring station information service | Science | 1 |
| EPA Watershed Summary | EPA watershed information service | Science | 1 |
| eSideWalk | Community networking site | Other | 1 |
| Evature Travel Search | Free text travel search query service | Travel | 1 |
| EveryTrail | Travel experience platform | Travel | 1 |
| Exchange Rate | Simple Currency API | Financial | 1 |
| exfm | Music streaming and discovery platform | Music | 1 |
| Expono | Photo storage and sharing service | Photos | 1 |
| Extractiv | Semantic text extraction service | Internet | 1 |
| EyeEm | Photo sharing and discovery service | Photos | 1 |
| Facebook Credits | Digital and virtual goods payment service | Payment | 1 |
| Faces.com | Photo and media sharing service | Music | 1 |
| FanBridge | Customer engagement and reward service | Advertising | 1 |
| FanSnap | Ticket search service | Events | 1 |
| Fantasy Football Nerd | American football draft rankings | Sports | 1 |
| FatSecret | Food, nutrition and recipe database and diet tools | Food | 1 |
| fav.or.it | RSS reader and blog platform | Feeds | 1 |
| FCC | U.S. Communications Data Service | Government | 1 |
| FedSpending.org | Database of US government spending | Government | 1 |
| FeedMap | Blog geo-coding | Blog Search | 1 |
| ffwd | Video sharing and discovery | Video | 1 |
| FilePicker | File upload to cloud services | Storage | 1 |
| FilesAnywhere | Data storage and content sharing service | Storage | 1 |
| FilesTube | Search engine for files | File Sharing | 1 |
| Film Crave | Movie database of reviews, trailers, and reference | Video | 1 |
| Fizber Neighborhoods | Neighborhood data service | Real Estate | 1 |
| FlightView | Live flight aircraft and delays tracking | Travel | 1 |
| Floobs | Streaming video service | Video | 1 |
| Florist One | Flower sales and delivery | Shopping | 1 |
| Forrst | Designer/developer community | Social | 1 |
| FreeYourID | Online identity authentication services | Internet | 1 |
| Fwix | Geolocation and location-based content service | Mapping | 1 |
| Fwix Location | Business listing service | Mapping | 1 |
| GamePro | Gaming review service | Games | 1 |
| Gatekrash | UK event listings service | Events | 1 |
| Gecko Landmarks | Location information services | Telephony | 1 |
| Gengo Human Translation | Language translation platform | Enterprise | 1 |
| GeoAdmin | Geospatial and mapping service | Mapping | 1 |
| geocubes | Mapping search service | Mapping | 1 |
| GeoGratis | Geographic data and mapping service | Mapping | 1 |
| Geolenz | Reverse geocoding service | Tools | 1 |
| GeoNB | New Brunswick geographic information service | Mapping | 1 |
| geoPlugin | IP address geolocating service | Internet | 1 |
| Geoportail | French geomapping overlay service | Mapping | 1 |
| Get Satisfaction | Distributed product support services | Social | 1 |
| GetMapping | Aerial photography and mapping service | Mapping | 1 |
| GigJunkie | Music events services | Music | 1 |
| Gigya | Single Sign-In/Registration Service | Social | 1 |
| GoMoText SMS Gateway | SMS mobile marketing service | Messaging | 1 |
| Goodsie | Goodsie Online Store Service | Shopping | 1 |
| Google Affiliate Network | Affiliate marketing network | Advertising | 1 |
| Google Apps Marketplace | Integrate Google billing services with applications | Payment | 1 |
| Google Apps Script | Automation service for Google products | Tools | 1 |
| Google Civic Information | Civic information service | Government | 1 |
| Google In-App Payments | Payments within applications | Payment | 1 |
| Google O3D | 3D API for web browsers | Other | 1 |
| Google Provisioning | User provisioning for Google Apps | Enterprise | 1 |
| Google Reader Subscriber Statistics | RSS feed statistics | Blogging | 1 |
| Google Shopping Content | Product listing service | Shopping | 1 |
| Google Sidewiki | Access to Google Sidewiki content | Internet | 1 |
| Google Storage | Online storage service | Storage | 1 |
| Google Website Optimizer | Create and modify website optimizer experiments | Internet | 1 |
| Groups Near You | Local groups search service | Social | 1 |
| Grove.io | Hosted IRC chat service | Chat | 1 |
| Handset Detection | Mobile phone database | Telephony | 1 |
| Harvest | Project time tracking and tasks | Project Management | 1 |
| HasOffers | Affiliate network service | Shopping | 1 |
| Heyzap | Gaming service for Flash games | Games | 1 |
| High Gear Media | Automotive reviews and news | News | 1 |
| Highwire | Multi-channel online store management service | Retail | 1 |
| hiogi | Questions and answers service for mobile | Answers | 1 |
| Hiveminder | To-do list managment service | PIM | 1 |
| Holidays Service | Holiday dates lookup service | Reference | 1 |
| Hotelsbase | Hotel database | Travel | 1 |
| HotUKDeals | UK local deals service | Shopping | 1 |
| Hotwire Travel-Ticker Deals | Travel deals service | Travel | 1 |
| HP Cloud Object Storage | Cloud storage service | Internet | 1 |
| HP Labs Multimedia Analytic Platform | Multimedia content analysis tools | Tools | 1 |
| Huffington Post Pollster | Political opinion poll results | News | 1 |
| Idescat Population Search | Population search | Search | 1 |
| idiomag | Musical artist information service | Music | 1 |
| Ifbyphone | Cloud based telephony service for IVR and dialer apps | Telephony | 1 |
| IIG Alerts | Voice, SMS and Email messaging | Messaging | 1 |
| ikregeer.nl | Dutch parliament documents | Government | 1 |
| Images | Royalty free clip art database | Photos | 1 |
| img.ly | Photo sharing service | Photos | 1 |
| ImmobilienScout24 | | | 1 |
| Impossible Software | Cloud-based video platform | Media Management | 1 |
| InfoChimps Datasets | 2,000+ dataset reference library | Reference | 1 |
| InnerGears Weather by City | US Weather forecasts by city | Weather | 1 |
| Intel CPU | Access to CPU information | Utility | 1 |
| IntelePeer | Telephony From the Cloud Service | Telephony | 1 |
| Intuit Data Service | Cloud data service for Intuit apps like QuickBooks | Enterprise | 1 |
| iRail | Belgium train schedules | Transportation | 1 |
| is.gd | Url shortening service | Internet | 1 |
| iSpeech Automated Speech Recognition | Speech Recognition Service | Tools | 1 |
| JamBase | Live music and concert information | Music | 1 |
| JobCentral Jobs | Job search services | Job Search | 1 |
| Joost | Online television | Video | 1 |
| Jots | Social bookmarking | Bookmarks | 1 |
| JotSpot | Wiki-style collaboration tools | Wiki | 1 |
| JSON Tools | JSON formatting tools | Tools | 1 |
| Justin.tv | Live video service | Video | 1 |
| Kwwika | Real-time push notifications and messaging service | Internet | 1 |
| LangId | Language identification service | Utility | 1 |
| LaunchBit | Email advertising network | Advertising | 1 |
| Let's Be Trends | Trend tracking on Twitter | Social | 1 |
| Library of Congress Prints & Photographs | Image search service | Media Search | 1 |
| Lingr | Online chatroom services | Chat | 1 |
| LiveConnect | Microsoft services connection platform | Internet | 1 |
| Living Stones | Bible lookup service | Other | 1 |
| Localmind | Location based Q&A | Recommendations | 1 |
| LocLizard | Mobile application positioning service | Tools | 1 |
| Long URL Please | Shortened URL expanding service | Internet | 1 |
| Mailgun | Integrate email mailboxes into apps | Email | 1 |
| MapBox | Mapping Service | Mapping | 1 |
| MapQuest Geocoding | Forward and Reverse Geocoding Service | Mapping | 1 |
| MapQuest Open Directions | Driving directions service | Mapping | 1 |
| Martindale-Hubbell | Legal directory | Reference | 1 |
| Meaningtool | Semantic meaning service | Other | 1 |
| MediaFire | Cloud-based file storage and sharing service | File Sharing | 1 |
| Medianet Open MP3 | Music search services and music store | Music | 1 |
| MediaTemple | Web hosting service | Internet | 1 |
| Medioh | Video search service | Video | 1 |
| Meebo | Web based messaging platform | Chat | 1 |
| Metro Realtime | Los Angeles Metro real-time vehicle location | Transportation | 1 |
| Microsoft HealthVault | Health-related data storage, security, and records | Medical | 1 |
| Miso | Social television service | Social | 1 |
| mite | Time tracking tool | Office | 1 |
| Moneybookers | Online payments service | Payment | 1 |
| MongoLab | MongoDB-as-a-Service | Database | 1 |
| Moonshadow Mobile | US population data service | Reference | 1 |
| MotorsportReg.com | Motorsports events and calendar service | Sports | 1 |
| Movieclips.com | Movie scene search and information service | Video | 1 |
| Moviepilot | Movie search, information and recommendation service | Recommendations | 1 |
| mydigitalstructure | Web application building service | Backend | 1 |
| Nabaztag | Robotic rabbit controller service | Games | 1 |
| National Library of Medicine DIRLINE | Medical information resource database | Medical | 1 |
| National Weather Service NDFD | U.S. national digital weather forecast service | Weather | 1 |
| Natureserve species | Biological data service | Education | 1 |
| NCAA Mens College Basketball | NCAA college basketball data services | Sports | 1 |
| nd url | URL shortening service | Internet | 1 |
| New York Times Community | Access user-generated NYTimes.com content | News | 1 |
| Next Big Sound | Artist and Band Statistics | Music | 1 |
| NHS | UK National Health Service | Medical | 1 |
| Nike Plus | Workout tracking service | Sports | 1 |
| NOAA ERDDAP | Oceanic science data service | Science | 1 |
| Nodester | Open Source Node.JS Platform as a Service | Utility | 1 |
| NolaPro | Accounting software | Financial | 1 |
| Notifo | Mobile push notification platform | Messaging | 1 |
| Nozbe | Personal productivity service using GTD | PIM | 1 |
| Numbers | Number reference service | Reference | 1 |
| Odnoklassniki | Russian social network | Social | 1 |
| Ohloh | Open source software directory and community | Social | 1 |
| Ookaboo | Creative Commons photo search service | Photos | 1 |
| ooVoo | Web video chat room service | Chat | 1 |
| Ooyala Video Player | Video player customization services | Video | 1 |
| Open Dining Network Food Ordering | Online restaurant menus and ordering service | Food | 1 |
| Open Government Data Initiative | Government data resource from Microsoft | Government | 1 |
| Open Patent Services | European Patent Office web services | Government | 1 |
| OpenDOAR | Academic research repository | Education | 1 |
| OpenSkyQuery SkyPortal | Astronomical catalog querying service | Science | 1 |
| OpenSosius | Social networking services | Social | 1 |
| OpenStrands | Music recommendation and discovery | Music | 1 |
| OpenX | Online advertising management services | Advertising | 1 |
| OpinionCrawl Sentiment Analysis | Web sentiment analysis | Internet | 1 |
| Orange Location | Location Tracking Services | Telephony | 1 |
| Orange SMS | SMS Text Messaging Service | Messaging | 1 |
| Orb | Digital media remote access and management | Media Management | 1 |
| Pachube | Realtime device and buildings monitoring | Other | 1 |
| PagerDuty | On-Call Alerting and Incident Management Solution | Messaging | 1 |
| PaperBack Swap | Book exchange service | Other | 1 |
| Parse | Mobile backend platform | Backend | 1 |
| Payments Gateway | Online payment service | Payment | 1 |
| Paymentwall | Digital monetization site | Tools | 1 |
| Payvment | Shopping cart web service | Shopping | 1 |
| PeekaCity | Location-based services | Mapping | 1 |
| Petfinder | Petfinder Database Search API | Search | 1 |
| PhotoShelter | Web solution for photographers | Photos | 1 |
| Picitup | Visual search service | Search | 1 |
| Pikchur | Photo and video uploading service | Social | 1 |
| Ping.fm | Social networking ping and update service | Social | 1 |
| Pinnacle Cart | Shopping cart service | Shopping | 1 |
| Pixagogo | Online photo services | Photos | 1 |
| Pixlr | Photo editing service | Photos | 1 |
| Planning Center | Ministry Planning Tools | Tools | 1 |
| Plunker | Multi-file snippet sharing service | Tools | 1 |
| Plurk | Microblogging service | Blogging | 1 |
| Pocket | Save pages to read later | Bookmarks | 1 |
| Pogoplug | Internet file access service | Storage | 1 |
| Postmark | Email management service | Email | 1 |
| PostRank Data Mining | Feed and story retrieval and analysis | Internet | 1 |
| Primal | Interest networking data and filtering | Search | 1 |
| Printfection | Sell custom merchandise | Shopping | 1 |
| Prodigem | File sharing via BitTorrent | File Sharing | 1 |
| Prosper | Peer-to-peer lending network | Financial | 1 |
| Prosperent | Affiliate marketing ad platform | Advertising | 1 |
| Public Transit Data Community | US transit data feeds service | Transportation | 1 |
| PubNub | Push messaging service | Messaging | 1 |
| Pushover | Push notification service for mobile devices | Messaging | 1 |
| Pushpin | Mapping service | Mapping | 1 |
| Pushpin Location Data | Location and statistical information about places | Mapping | 1 |
| qr.cx | URL shortening service | Tools | 1 |
| QuarkRank | Consumer reviews service | Shopping | 1 |
| QuickBase | Workgroup applications management | Enterprise | 1 |
| Quizlet Flashcards | World's largest flashcards database | Education | 1 |
| Quora | Question and answer site | Answers | 1 |
| Quova | IP geolocation service | Internet | 1 |
| Qurl | URL redirection services | Internet | 1 |
| Qype | Local reviews service | Recommendations | 1 |
| r.im | URL shortening service | Internet | 1 |
| RadioTime | Music and talk radio service | Music | 1 |
| Rakuten | Japanese shopping web service | Shopping | 1 |
| Rdio | Social Music Service | Music | 1 |
| ReadSocial | Social reading service for reading applications | Social | 1 |
| reCAPTCHA | Security and Book Digitalization Service | Security | 1 |
| Recurly | Subscription billing service | Payment | 1 |
| Remember the Milk | Personal information management | PIM | 1 |
| Rentometer | Realestate pricing services | Real Estate | 1 |
| RescueTime | Time tracking services | Project Management | 1 |
| Retro Avatar | Avatar creator | Utility | 1 |
| RhymeBrain | Online rhyming dictionary | Dictionary | 1 |
| Ribbit | Flash based VoIP service | Telephony | 1 |
| RoboWhois | WHOIS record lookup service | Internet | 1 |
| RPM Software | Process management software | Enterprise | 1 |
| Rrove | Social Bookmarking for Places Create & Share Maps | Bookmarks | 1 |
| RunKeeper Health Graph | Health & fitness tracking service | Sports | 1 |
| Safe Creative | Free copyright registry | Tools | 1 |
| San Francisco Crimespotting | Crimespotting data for San Francisco California | Government | 1 |
| Saplo Text Analysis | Text Analysis Tool | Tools | 1 |
| Scalr | Cloud hosting platform | Internet | 1 |
| Science Museum | British Science Museum data and services | Education | 1 |
| Scoop.it | Social media and content curation platform | Social | 1 |
| SDSS ImgCutout | Sky map image retrieval service | Science | 1 |
| Semantic Contextual Advertising | Contextual ad matching | Advertising | 1 |
| Sendible | Social Media Management Service | Messaging | 1 |
| Sensis Business Search | Australian business directory search service | Reference | 1 |
| ShipStation | Web-Based Shipping | Shipping | 1 |
| Short and tweet | URL shortening service | Internet | 1 |
| SHOUTcast Radio | Internet radio database service | Reference | 1 |
| Shrten | URL shortening service | Internet | 1 |
| ShutterPoint | Stock photography service | Photos | 1 |
| SimpleGeo Places | Location Search Service | Mapping | 1 |
| Simpy | Social bookmarking | Bookmarks | 1 |
| Sina Weibo | Chinese microblogging service | Social | 1 |
| SinglePlatform | Restaurant Menu and Local Business Storefront API | Food | 1 |
| Singly | Personal data platform | Social | 1 |
| SmashFly | Job board posting service | Job Search | 1 |
| SnappyFingers | Question and answer search engine | Search | 1 |
| Social Mention | Aggregated social search service | Search | 1 |
| SocialOomph | Social media productivity enhancement services | Social | 1 |
| Song.ly | Music discovery service | Music | 1 |
| Songza | Music popularity and user playlist services | Music | 1 |
| sonicAPI.com | Sound effect, audio, and music service | Music | 1 |
| Sonos Music | Multi room audio system | Music | 1 |
| SpamOn | Disposable email address service | Email | 1 |
| SPEEDY Express Delivery Services | Bulgarian express delivery service | Shipping | 1 |
| Sports Data | Real time sports data | Sports | 1 |
| Sports Power | Highschool sports ranking service | Sports | 1 |
| Spraci | Events and clubs database | Events | 1 |
| Springer | Scientific journal and books database | Reference | 1 |
| Sqoot | Local deals aggregation service | Shopping | 1 |
| stikkit | Little sticky notes that think | Utility | 1 |
| StrikeIron | API marketplace services | Other | 1 |
| StrikeIron Reverse Phone Lookup | Reverse phone lookup services | Reference | 1 |
| StrikeIron Tax Service | Sales tax reference lookup | Reference | 1 |
| Stylight | Fashion images and other services for shopping | Shopping | 1 |
| SubDB | Video subtitle database | Video | 1 |
| Subj3ct | Semantic Web subject identity resolution service | Other | 1 |
| Svpply | Social shopping discovery website | Shopping | 1 |
| Swoogle | Semantic data search | Tagging | 1 |
| Synonyms | Online thesaurus | Reference | 1 |
| Tagoo | Audio and video search engine | Search | 1 |
| Tagul | Tag Cloud Creation Service | Tagging | 1 |
| TappIn | Cloud content sharing service | Storage | 1 |
| Tarpipe | Lifestreaming services | Social | 1 |
| TeachStreet Classes and Courses | Local and online class search and community | Education | 1 |
| Teambox | Project collaboration service | Tools | 1 |
| Tesco | UK grocery chain | Shopping | 1 |
| Textamerica | Moblogs | Messaging | 1 |
| TFL Cycle Hire | Real-time UK Cycle Hire data service | Transportation | 1 |
| TheTVDB.com | Television show database | Video | 1 |
| TheyWorkForYou | Track the UK Parliament | Government | 1 |
| This Is My Jam | Music recommendation and sharing service | Music | 1 |
| ThisNext | Social shopping service | Recommendations | 1 |
| Thounds | Music creation and sharing service | Music | 1 |
| Ticketfly | Music events and ticketing service | Events | 1 |
| TimesURL | URL shortening service | Internet | 1 |
| Tiny GeoCoder | Geocoding services | Mapping | 1 |
| Tixik | Famous places GPS services | Reference | 1 |
| Toodledo | To-do list management | PIM | 1 |
| Touchnote | Create custom cards from photos | Photos | 1 |
| Tradeshift | Business Network and Invoice management service | Enterprise | 1 |
| TradeSports | Online sports betting exchange | Other | 1 |
| trakt.tv | Television tracking and recommendation service | Recommendations | 1 |
| TransiCast | Public transit data aggregation service | Transportation | 1 |
| Transparency Data | State and Federal campaign contribution data | Government | 1 |
| TravelFusion | Travel Flight Booking API | Travel | 1 |
| TravEnjoy | Travel search service | Travel | 1 |
| Trello | Project management platform | Project Management | 1 |
| Trendrr | Graphing trends service | News | 1 |
| Tribe HR | Online human resource application | Enterprise | 1 |
| TriMet | Transit tracking service for Portland, Oregon | Transportation | 1 |
| TringMe | VoIP telephony services | Telephony | 1 |
| TripAdvisor | Travel review and recommendation service | Travel | 1 |
| TrustedPlaces | Local user reviews and city guides | Recommendations | 1 |
| Tutorials Garden | Online tutorials service | Other | 1 |
| TVRage | Television information service | Social | 1 |
| TweepSearch | Twitter profile search services | Social | 1 |
| Tweet Press | Long tweet blogging service | Blogging | 1 |
| Tweet Scan | Twitter and identi.ca search results service | Search | 1 |
| TweetARun | Get access to your running records that have been recorded on TweetARun | Social | 1 |
| TweetFeel Twitter Sentiment | Twitter customer expereince tracking tool | Social | 1 |
| TweetLater | Twitter tweet scheduling tool | Social | 1 |
| TweetRL | Revenue sharing twitter article service | Social | 1 |
| TweetSentiments | Sentiment analysis for Twitter service | Tools | 1 |
| TweetShrink | Tweet shortening service | Blogging | 1 |
| Twinfluence | Twitter profile analysis service | Internet | 1 |
| TwitrPix | Photo sharing service for Twitter | Photos | 1 |
| twt.fm | Twitter music sharing service | Music | 1 |
| TypeKey | Authentication Framework | Security | 1 |
| uBio Namebank | Animal scientific naming and search service | Science | 1 |
| Ubuntu One Files | Online file storage service | File Sharing | 1 |
| UK Street Level Crime | UK police force mapping service | Government | 1 |
| UKMail | U.K. parcel and shipping service | Shipping | 1 |
| Union County NC GIS | Local North Carloina GIS service | Government | 1 |
| Urban Mapping Neighborhoods | Urban geo-spatial data services | Mapping | 1 |
| urlBorg | URL shortening service | Internet | 1 |
| UserVoice | Customer feedback service | Tools | 1 |
| uShip | Online shipping marketplace | Shipping | 1 |
| Verizon NavBuilder LocationKit | Mobile geolocation service | Mapping | 1 |
| VeryRelated Mind Maps Keyword | Keywords generation service | Utility | 1 |
| Videodetective | Film trailers, cast, images, and related information | Video | 1 |
| Vidoop | Secure authentication service | Security | 1 |
| VK | European social networking service | Social | 1 |
| Volusion Shopping Cart | Hosted ecommerce and shopping cart service | Shopping | 1 |
| voo2do | Task management | Other | 1 |
| Voxeo | Services for IVR and Voice over IP, VoIP | Telephony | 1 |
| vzaar | Video hosting service | Video | 1 |
| W3Counter | Web site metrics tools | Internet | 1 |
| We Are Hunted | Social music data sharing | Music | 1 |
| Web API for Biology | Biological sequence search and analysis | Medical | 1 |
| Webcams.travel | Webcam repository | Video | 1 |
| WebPurify Profanity Filter | Profanity filtering service | Utility | 1 |
| Weplay | Social Youth Sports Community | Sports | 1 |
| WhatCounts | Email management services | Email | 1 |
| Where2GetIt SlippyMap | Online mapping service | Search | 1 |
| Whereis | Australian and New Zealand mapping service | Mapping | 1 |
| Whois | Whois lookup service | Tools | 1 |
| Wigle | Wireless network mapping | Search | 1 |
| Wiki-Data | Company/business entity data service | Reference | 1 |
| WikiLocation | Find Wikipedia articles based on location | Wiki | 1 |
| Windows Live Admin Center | Web site administration services | Internet | 1 |
| Windows Live Spaces Photo | Photo management services | Photos | 1 |
| Windows Live Spaces Photo Control | Programmable widget for blog photos | Photos | 1 |
| Wine.com | Wine reference and resources | Shopping | 1 |
| Wishpot Shopping | Community shopping wish list services | Shopping | 1 |
| WMATA | DC Transit Service | Government | 1 |
| Wookmark | Image collection and sharing service | Social | 1 |
| Wordstream Keyword Tool | Keyword suggestion service | Search | 1 |
| Worksnaps | Productivity and time-tracking service | Project Management | 1 |
| World Bank | Worldwide indicators, business, and photo databases | Reference | 1 |
| World Weather Online Time Zone | Time zone data service | Reference | 1 |
| Wuala | Store and share files online | Storage | 1 |
| Xa.ly | URL shortener and monetizing service | Internet | 1 |
| Yahoo Contacts | Yahoo address book | Social | 1 |
| Yahoo Social Directory | Yahoo profile directory service | Social | 1 |
| Yahoo Spelling Suggestion | Spelling correction service | Reference | 1 |
| Yahoo Updates | Social network aggregation | Tools | 1 |
| Yahoo YUI | Web visualization and layout framework | Internet | 1 |
| Yammer | Microblogging for business | Social | 1 |
| yfrog | Photo sharing and social networking platform | Photos | 1 |
| YRC | Package shipping services | Shipping | 1 |
| Zapier | Application integration service | Tools | 1 |
| Zixxo | Online coupons | Shopping | 1 |
| Zomato | India Restaurant and lifestyle guide | Food | 1 |
| Zootool | Online Bookmarking and Collecting Service | Bookmarks | 1 |
| Zotero | Research citation organization service | Bookmarks | 1 |
| The Global Proteome Machine | Proteome data for biomedical research | Science | 0 |
| #Gah People | FreeNode IRC channel user-finding service | Social | 0 |
| .NET Daily Fact | .NET daily fact widget | Internet | 0 |
| 100 Facts About Me | Fact sharing service | Social | 0 |
| 10x10 | Photo and news analysis service | Photos | 0 |
| 11870 | Spanish bookmarking and directory service | Search | 0 |
| 123 Shop Pro | Online shopping cart software | Shopping | 0 |
| 123Cloud ECP | Cloud Platform | Storage | 0 |
| 123ContactForm | Form builder service | Tools | 0 |
| 140 Proof | Twitter advertising service | Advertising | 0 |
| 18amail | Email marketing service | Email | 0 |
| 1DayLater | Business expense tracking tool | Enterprise | 0 |
| 1Map | South African GIS service | Mapping | 0 |
| 2-WaySMS | SMS messaging service | Messaging | 0 |
| 2011 International Computational Billiards Championships | Computational billiards competition | Sports | 0 |
| 21 Forty Medical District Slide Show Data Service | Real estate slides retrieval service | Photos | 0 |
| 23andMe | Individual DNA and genotype service | Science | 0 |
| 24 Pull Requests | Annual pull request sending event | Events | 0 |
| 27 Seconds Knowledge Base | Programming article search, retrieval, and rating service | News | 0 |
| 2Checkout | Ecommerce services | Shopping | 0 |
| 2GIS | Russian Search Service | Search | 0 |
| 2sms | SMS messaging service | Messaging | 0 |
| 30 Digits Web Extractor | Semantic web extraction tool | Internet | 0 |
| 30Loops | App hosting and development platform | Backend | 0 |
| 360 Business Tool | Business management service | Enterprise | 0 |
| 360T | Stock Trading Service | Financial | 0 |
| 360Text | SMS text messaging service | Messaging | 0 |
| 360voice | XBox gamer profile data | Games | 0 |
| 3DArmory | World of Warcraft armory database | Games | 0 |
| 3defy | Online 3D modelling service | Photos | 0 |
| 3DGeoStats | Three Dimensional Visualization Service | Mapping | 0 |
| 3Jam | Reply-all text messaging service | Messaging | 0 |
| 3NGNetworks | VoIP services provider | Telephony | 0 |
| 3PlayMedia | Caption and Transcription Service | Tools | 0 |
| 3Scale Account Management | API management services | Tools | 0 |
| 3Scale Analytics | API management services | Tools | 0 |
| 3Scale Billing | API management services | Financial | 0 |
| 3scale Service Management | API management services | Tools | 0 |
| 3taps | Realtime search service | Search | 0 |
| 3TIER | Global wind and solar resource data | Weather | 0 |
| 43 Places | Social travel goals | Social | 0 |
| 46elks | Cloud communication platform | Telephony | 0 |
| 4:14 XML Bible | Christian bible verse service | Reference | 0 |
| 4chan | Image pasteboard and forum | Entertainment | 0 |
| 4GuysFromRolla.com | ASP.NET FAQ service | Answers | 0 |
| 4PSA DNS Manager | DNS hosting service | Internet | 0 |
| 4PSA VoipNow | Integrated communications system | Telephony | 0 |
| 4sync | File sharing, syncing, and storage service | File Sharing | 0 |
| 500friends | Social rewards service | Enterprise | 0 |
| 50BTC | Bitcoin Mining Service | Financial | 0 |
| 51.com | Social Network Data Access Service | Social | 0 |
| 511 Driving Times | San Francisco traveler information service | Transportation | 0 |
| 511 Real-time Transit Departures | San Francisco traveler information service | Transportation | 0 |
| 5centSMS | Australian SMS text messaging service | Messaging | 0 |
| 5gig | Concert listing service | Music | 0 |
| 5Min Videopedia | Instructional video collection | Video | 0 |
| 5pm | Project and Time Management Tools | Project Management | 0 |
| 6rounds | Social entertainment platform | Social | 0 |
| 7-Eleven Election | Unscientific election polling service | Politics | 0 |
| 73 Summits ErgDB | Erg and PowerAgent workout creation and sharing | Sports | 0 |
| 73s Ham Radio | Ham radio conversation logging service | Social | 0 |
| 80legs | Commercial web search services | Search | 0 |
| 88 Miles | Project time tracking services | Project Management | 0 |
| 8x8 Click to Dial | Contact Center Outbound Call Service | Telephony | 0 |
| 8x8 CRM | Contact Center Customer Management Service | Telephony | 0 |
| 8x8 External IVR | Contact Center IVR Server Interaction Service | Telephony | 0 |
| 8x8 Real Time Statistics Reporting | Contact Center Real Time Statistics Reporting Service | Telephony | 0 |
| 8x8 Recordings | Contact Center Recording Interaction Service | Telephony | 0 |
| 8x8 Reporting | Contact Center Statistics Reporting Service | Telephony | 0 |
| 8x8 Web Callback | Contact Center Web Callback Service | Telephony | 0 |
| 90sec.tv | Embed videos on web sites | Video | 0 |
| 9flats | International Rental Service | Travel | 0 |
| A View From My Seat | Sports venue seating photos | Photos | 0 |
| A-Dato Lynx | Project collaboration service | Project Management | 0 |
| A.nnotate | PDF, Word, or Web annotation service | Office | 0 |
| AAA Cooper Transportation | Trucking and shipping services | Shipping | 0 |
| Aadhaar UIDAI Authentication | Online authentication for Indian citizens | Government | 0 |
| AAI@EduHr AOSI | Croatian online identity management system | PIM | 0 |
| Aalto social interface | Social networking support service | Social | 0 |
| Aalto University | Aalto University course portal information | Education | 0 |
| Aarki | Mobile application advertising and monetization service | Advertising | 0 |
| ABBYY Cloud OCR | Optical character recognition service | Tools | 0 |
| abctext.com | SMS text messaging service | Messaging | 0 |
| AbeBooks | Online books marketplace | Search | 0 |
| AbleSMS | SMS integration service | Messaging | 0 |
| ABN AMRO Markets | Dutch stock market information service | Financial | 0 |
| About.me | Personal website service | Social | 0 |
| Abra Mobile Websites | Mobile website creation service | Tools | 0 |
| ABTXT | SMS gateway service | Messaging | 0 |
| Abundant AtomicClock | Atomic timekeeping service | Tools | 0 |
| Abundant Barnes & Noble Price | Book price retrieval service | Shopping | 0 |
| Abundant DeadOrAlive | Celebrity mortality status database | Entertainment | 0 |
| Abundant World Population | Population information service | Politics | 0 |
| Academic Benchmarks | Education standards data service | Education | 0 |
| Access ACS | Church and ministry management service | Enterprise | 0 |
| Access Plans USA | Health care insurance directory service | Medical | 0 |
| Access Taiwan | Taiwan tourism data | Travel | 0 |
| Accthub | Account management service | Backend | 0 |
| Accuity IBAN Connect | IBAN conversion, validation, and routing service | Financial | 0 |
| Accumulus | Subscription billing service | Payment | 0 |
| AccurateTax | Sales tax integration for shopping carts | Shopping | 0 |
| AceProject | Project management enhancement service | Project Management | 0 |
| AChecker | Accessibility review service | Utility | 0 |
| Achievement Standards Network | Semantic instructional standards service | Education | 0 |
| ACHWorks | Online transaction service | Payment | 0 |
| Acoustid | Audio fingerprinting service | Media Management | 0 |
| Acquia Cloud | Cloud based Drupal web site development platform | Internet | 0 |
| Acromine | Acronym look-up and text mining service | Dictionary | 0 |
| Across Communications | Internet-based, inter-device communication service | Telephony | 0 |
| Acrostic.me Trending | Bible poetry feed service | Feeds | 0 |
| ActionKit | Social organizing service | Social | 0 |
| Active RegOnline | Event Planning Service | Project Management | 0 |
| Active.com Camping | Access campground database | Travel | 0 |
| ActiveBuilding | Property management platform | Project Management | 0 |
| ActiveCampaign | Email marketing service | Email | 0 |
| ActiveCollab | Collaboration & Project Management System | Tools | 0 |
| activeRenderer | Outline publishing for Radio UserLand | Other | 0 |
| Activism Network Community | Online activism network and community | Events | 0 |
| ActPHP | Web development resource portal | Security | 0 |
| Actual Reports | Custom printout and reports service | Office | 0 |
| Actwitty | Social media topic organizer | Social | 0 |
| Acu Identity | Fraudulent order identification service | Security | 0 |
| Aculab Cloud | Cloud based telephony services | Telephony | 0 |
| AcyMailing | Email Marketing Service | Email | 0 |
| Ad Server Solutions | Ad server and exchange software | Advertising | 0 |
| Ad-Juster | Multiple advertising system management service | Advertising | 0 |
| AdamsNames Registration | Internet domain registration | Internet | 0 |
| AdaptivePlanning | Financial analysis, planning, and reporting service | Financial | 0 |
| adBrite | Online ad management service | Advertising | 0 |
| Adcentricity ADMobile | Location based mobile shopping service | Shopping | 0 |
| Add to TomTom | Route and place sharing service | Mapping | 0 |
| Add To Trip | Social trip planning service | Travel | 0 |
| AddLive | WebRTC video and audio services | Video | 0 |
| AddNag | Add message screens within apps | Tools | 0 |
| AddressDoctor | Street address validation service | Shipping | 0 |
| AddressingHistory | Historical online mapping service | Tools | 0 |
| AddressTwo | Small business CRM service | Enterprise | 0 |
| AddShoppers Social Product | Social eCommerce sharing platform | Social | 0 |
| AddToAny Menu | Online sharing tool | Social | 0 |
| Adegga | Social Wine Discovery service | Social | 0 |
| Adeptol CloudConnect | Online document viewer service | Tools | 0 |
| Adfonic | Mobile advertising service | Advertising | 0 |
| Adform | European advertising service | Advertising | 0 |
| adFreeq | Real-time classifieds platform | Advertising | 0 |
| AdGooroo | Keyword search marketing platform | Advertising | 0 |
| Adhocracy | German group decision-making platform | Social | 0 |
| ADI Time | Workforce optimization and management software | Office | 0 |
| Adigami Web Analytics | Digital media analytics | Advertising | 0 |
| AdJuggler | Ad management service | Advertising | 0 |
| Adknowledge | Online advertising and marketing service | Advertising | 0 |
| ADL 3D Repository (3DR) | 3D model database | Database | 0 |
| AdmitPad | Academic admissions services | Enterprise | 0 |
| Admob | Mobile advertising service | Advertising | 0 |
| Adobe Feeds | Integrate Adobe feeds | Feeds | 0 |
| Adobe PhoneGap Build | Cloud-based app compiler | Internet | 0 |
| Adobe Project Adthenticate | Ad validation and optimization service | Advertising | 0 |
| Adobe Wave | Desktop notification service | Utility | 0 |
| Adocu | Single word microblogging service | Blogging | 0 |
| Adriagate | Croatian travel service | Travel | 0 |
| Adriatic.hr | Croatian travel accommodations service | Travel | 0 |
| ADS Securities | Forex trading platform | Financial | 0 |
| AdSpeed | Online advertising management services | Advertising | 0 |
| AdStack | Advertising optimization service | Advertising | 0 |
| Advection.NET | Cloud-based video delivery network | Video | 0 |
| AdventureLink | Travel search and booking service | Travel | 0 |
| Advertory | Local web marketing service | Enterprise | 0 |
| Advice Slip | Random advice slip generator | Entertainment | 0 |
| Advogato | Free software developer social site | Social | 0 |
| Adyen | Online payments service | Payment | 0 |
| Adzerk | Online ad server service | Advertising | 0 |
| Aepona | Mobile cloud hosting service | Payment | 0 |
| Aerapay | Mobile payments service | Payment | 0 |
| AES WebLink | Shipment submission and inquiry services | Government | 0 |
| Aetna CarePass | Health and drug information portal | Medical | 0 |
| AFD Software Postcode Everywhere | UK address and bank information service | Reference | 0 |
| Affiliate Spice | Online content monetization service | Advertising | 0 |
| Affiliate Window Merchant | Affiliate and merchant transaction information retrieval service | Shopping | 0 |
| Affiliate Window ProductServe | Affiliate and merchant transaction information retrieval service | Shopping | 0 |
| Affilinet | European affiliate marketing network | Shopping | 0 |
| AffinityLive | Project management, sales, and CRM platform | Project Management | 0 |
| AFL Mobile Web Services | Australian football mobile information and media services | Sports | 0 |
| Afla.MD | Moldovan educational institution information service | Education | 0 |
| Africa's Talking | African based SMS messaging service | Messaging | 0 |
| Africori | Music distribution and licensing service | Music | 0 |
| Aftermarket.pl | Internet domain marketplace | Internet | 0 |
| AfterShip | Shipment tracking and notification service | Shipping | 0 |
| Agencyport Turnstile | Form data extraction service | Enterprise | 0 |
| Agendize Analytics | Business conversion tools platform | Enterprise | 0 |
| Agendize Developers | Business conversion tools platform | Enterprise | 0 |
| Agendize Platform | Business conversion tools platform | Enterprise | 0 |
| Agent Storm | Real Estate systems connection | Real Estate | 0 |
| AgentFactor Travel | Travel booking service | Travel | 0 |
| AgeTak | Database integration security and management | Database | 0 |
| Agile Bench | Agile project management tool | Project Management | 0 |
| AgileTask | Task tracking application for agile projects | PIM | 0 |
| AgileZen | Web based lean project management application | Project Management | 0 |
| Agree'nSign | Online electronic signature service | Enterprise | 0 |
| AHDS Identifier Resolver | UK electronic research data repository | Reference | 0 |
| Aiaioo Labs VakText | Text Analysis Service | Tools | 0 |
| AidData | Development finance data | Financial | 0 |
| AidData USD-2009 Deflator | Currency value conversion service | Financial | 0 |
| AIDS.gov Service Provider Locator | HIV/AIDS testing and care information service | Government | 0 |
| AIDSinfo | Government info on HIV/AIDS treatment | Medical | 0 |
| AIMS Address | Johnson County Kansas address lookup service | Government | 0 |
| Air-Trak | Vehicle location and tracking services | Transportation | 0 |
| Airbana | Airsoft event, map and pricing database | Other | 0 |
| AirBNB | Vacation rental marketplace | Travel | 0 |
| Airbrake Data | Application error reporting service | Tools | 0 |
| Airbreak Notifier | Application error aggregation service | Tools | 0 |
| Airbrite | Mobile commerce service | Shopping | 0 |
| Airport Transfer Worldwide | On demand transportation service | Transportation | 0 |
| aisle411 | Indoor mapping and commerce platform | Shopping | 0 |
| AisleBuyer | Mobile commerce services | Retail | 0 |
| AISpeech | Speech recognition service | Utility | 0 |
| Akvo | Development aid reporting tool | Project Management | 0 |
| Aladtec | Employee scheduling and workforce management software | Office | 0 |
| Alagad Fortune | Random phrase retrieval service | Entertainment | 0 |
| Alameda County Service Provider | listings for social services in Alameda County (Oakland), CA | Government | 0 |
| Alan Bush Music Trust Compositions | Musical compositions archive search | Music | 0 |
| Alaska Satellite Facility | Satellite data archive | Science | 0 |
| Alau.me | Referral tracking platform | Tools | 0 |
| Albany eVERIFY | Payment verification service | Payment | 0 |
| Alcatel-Lucent New Conversation | Transform IMS into a platform for rapid innovation | Telephony | 0 |
| AlchemyAPI Language Detection | Language detection and analysis tool | Tools | 0 |
| AlchemyAPI Text Categorization | Text analysis and categorization tool | Tools | 0 |
| AlertGrid | Monitoring and alert service | Telephony | 0 |
| AlertRocket | Web based mobile messaging | Messaging | 0 |
| Alfresco | Enterprise content platform | Enterprise | 0 |
| Alianza | Cloud-based voice communication service | Telephony | 0 |
| All The Rage Faces | Meme faces download service | Photos | 0 |
| AllAreaCodes | Area code lookup service | Reference | 0 |
| AllCDCovers | Music graphics service | Music | 0 |
| AllClients | Web Based CRM and Marketing System | Enterprise | 0 |
| Allegro | Online auction marketplace | Shopping | 0 |
| Allen Brain Atlas | Neuroscience information resource directory | Medical | 0 |
| Allied Wallet | E-commerce merchant services | Payment | 0 |
| Allmenus | Restaurant Menu Service | Food | 0 |
| AllTrust | Biometric check processing service | Payment | 0 |
| Allyve | Social media integration service | Social | 0 |
| Aloqa | Mobile content publishing service | Other | 0 |
| Alpha Micro Systems | GPS tracking service | Transportation | 0 |
| Alpharooms Affiliate | International discount hotel room search service | Travel | 0 |
| Alpinaut | Adventure sport route sharing service | Sports | 0 |
| AlsaMarketing | Online marketing platform | Enterprise | 0 |
| Altairis PaleHorse | Mailing list management system | Email | 0 |
| ALTER Reflective | Genetic notation conversion service | Science | 0 |
| AlterGeo | Local recommendation service | Social | 0 |
| Alterian Dynamic Messenger | Email marketing services | Email | 0 |
| Alteryx | Business data processing and app development platform | Tools | 0 |
| Altmetric | Scholarly article discussion tracker | Education | 0 |
| Amadeus | Travel industry transaction processing service | Travel | 0 |
| Amadeus Cruise | Cruise line transaction processing service | Travel | 0 |
| Amazon Auto Scaling | Cloud platform resource scaling service | Backend | 0 |
| Amazon CloudFront CDN | Content delivery service | Internet | 0 |
| Amazon DevPay License Service | Amazon web services licensing | Financial | 0 |
| Amazon ElastiCache | Cloud based in-memory cache | Backend | 0 |
| Amazon Gift Cards | Corporate gift cards on demand | Enterprise | 0 |
| Amazon Glacier | Cloud based data archiving and backup | Storage | 0 |
| Amazon Mobile App | Amazon mobile app creation tools | Tools | 0 |
| Amazon Route 53 | Domain name resolution service | Internet | 0 |
| Amazon SWF | Business process service | Enterprise | 0 |
| AmberCart | eCommerce and shipping service | Payment | 0 |
| American Bible Society BibleSearch | Bible access and search service | Reference | 0 |
| American Express Payment SDK | American Express payments and transactions processing | Payment | 0 |
| American Tours | U.S. international tourist service | Travel | 0 |
| AmeriCommerce | Shopping cart software | Shopping | 0 |
| AmeriTrade | Stock trading and data services | Financial | 0 |
| AMEX OPEN Forum | Access small business content | Financial | 0 |
| Ami-Link Hide | Link hiding tool | Internet | 0 |
| Amiando | Events organizing and ticketing services | Events | 0 |
| Ammado | Global donations platform | Payment | 0 |
| Amnesty International | Database of censored sites and data | Other | 0 |
| amoCRM | Customer Relationship Management Service | Enterprise | 0 |
| AmphetaRate | News aggregator | News | 0 |
| Amsterdam Museum | Museum collection online | Education | 0 |
| Analytical Path | Application data vizualization service | Tools | 0 |
| Analytics SEO | SEO optimization service | Search | 0 |
| Anatoa | Fraud protection service | Security | 0 |
| Anchor SMS Customer Management | SMS customer management service | Messaging | 0 |
| Ancient World Mapping Center | Ancient mapping database | Mapping | 0 |
| AND GeoAccess | Route mapping service | Mapping | 0 |
| Anedot | Donation and contribution management service | Payment | 0 |
| Angel Eyes | Image and video detection service | Photos | 0 |
| Angel OutBound | Interactive voice response platform | Telephony | 0 |
| AniDB | Anime information database | Entertainment | 0 |
| Anime News Network Encylopedia | Online Anime Encyclopedia Service | Reference | 0 |
| Animetrics FIMS Cloud | Facial biometrics applications | Security | 0 |
| Animoto | Video creation platform | Video | 0 |
| Ankoder | Video transcoding service | Video | 0 |
| Anniversarator | Annual event calendar service | Calendar | 0 |
| Annotate.IO | Social media text and photo annotation service | Tools | 0 |
| AnnotatedEarth Location | Location-based information resources | Mapping | 0 |
| AnnotQTL | Gene annotation by chromosomal region | Science | 0 |
| aNobii | Book sharing service | Other | 0 |
| Answerbag | Questions and answers service | Answers | 0 |
| AnswerHub | Enterprise Q&A platform | Answers | 0 |
| Antigate | CAPTCHA Decoding Service | Tools | 0 |
| ANU Quantum Random Number Generator | Random number generator | Tools | 0 |
| Anveo Phone | Interactive voice response phone service | Telephony | 0 |
| AnyClip | Video Clip Sharing Service | Video | 0 |
| Anyfi.net | Wireless access rerouting service | Internet | 0 |
| AnyHub | File sharing service | Storage | 0 |
| AOL Calendar | Online calendar service | Calendar | 0 |
| AOL Journals | Blogging platform | Blogging | 0 |
| AOL Presence | Online presence service | Chat | 0 |
| Aonaware CountCheatService | Solutions to anagram problems | Games | 0 |
| AORecipeBook | Anarchy Online tradeskills recipe bot | Games | 0 |
| APEC Securities | Asian financial securities information and trading service | Financial | 0 |
| Apertium | Translation Service | Tools | 0 |
| API Evangelist | API resource website & service | News | 0 |
| API O MAT | Mobile application backend service | Backend | 0 |
| API.LEIPZIG | Leipzig city data | Government | 0 |
| API2Cart | Unified shopping cart interface | Shopping | 0 |
| api4sms.net | SMS gateway service | Messaging | 0 |
| Apideo | Video streaming service | Video | 0 |
| Apigee OAuth | OAuth authentication across several APIs | Security | 0 |
| APInbox | Incoming emails to web service | Email | 0 |
| APIphany | API management and hosting service | Backend | 0 |
| ApnaCircle | Business and career networking site | Social | 0 |
| Appacitive | Mobile application backend service | Backend | 0 |
| AppAddict | Cracked applications and digital books for mobile devices | File Sharing | 0 |
| AppAware | Android Application Recommendation Service | Recommendations | 0 |
| Appbistro | Software marketplace for Facebook apps | Social | 0 |
| Appboy | Mobile Customer Relationship Managment SDK | Enterprise | 0 |
| Appcelerator | Application development platform | Backend | 0 |
| AppDirect | Web based software marketplace | Internet | 0 |
| APPELLO | EpiDoc encoded document information extraction service | Tools | 0 |
| Appery.io | Mobile application building and management service | Backend | 0 |
| appFigures | Sales Reporting and Analytics for iTunes Apps | Tools | 0 |
| AppFirst | Application monitoring service | Tools | 0 |
| AppGlu | Mobile application management platform | Backend | 0 |
| Appinions | Opinion aggregation platform | Recommendations | 0 |
| Apple iCloud | Cloud storage service | Storage | 0 |
| AppleTree | Family tree service | Other | 0 |
| Applicasa | Mobile backend platform | Backend | 0 |
| Applicaster | Mobile video content platform | Video | 0 |
| AppLift | Mobile games discovery and marketing service | Games | 0 |
| appMobi | Mobile HTML5 application platform service | Internet | 0 |
| AppNexus | Real time advertising platform | Advertising | 0 |
| AppNowGo! | Web app building platform | Tools | 0 |
| Appointment-Plus | Online reservation software | Calendar | 0 |
| Appointment.com | Online appointments and scheduling service | Events | 0 |
| Appolicious | Mobile application discovery service | Search | 0 |
| Approver | Services for document approval and review | Other | 0 |
| Apps for Ghent | Belgian open data service | Government | 0 |
| Appsecute | Application management platform | Project Management | 0 |
| Appsflyer | Mobile application marketing and tracking service | Enterprise | 0 |
| AppsGeyser | App creation platform | Tools | 0 |
| AppShore | Small business CRM service | Enterprise | 0 |
| AppspotImage | Image manipulation service | Photos | 0 |
| Apptentive | In-application feedback service | Tools | 0 |
| appto.us | Mobile and web application database | Database | 0 |
| aprs.fi | Real-time Automatic Packet Reporting System database | Tools | 0 |
| Apsalar ApScience | Mobile analytics platform | Enterprise | 0 |
| Apsis Newsletter Pro | Email newsletter management service | Email | 0 |
| Apstrata | Client2Cloud application service | Storage | 0 |
| aql | SMS solutions portal | Messaging | 0 |
| aql vCard | Business card generator services | Enterprise | 0 |
| Aqua.io | Standardized healthcare code reference service | Reference | 0 |
| Aramex | Global shipping service | Shipping | 0 |
| ArchiDev Validator | Email and URL validation tool | Tools | 0 |
| Archimedes Project Donatus | Morphological analysis data service | Science | 0 |
| Archiver | Public social media database | Search | 0 |
| Archives Hub | UK research archive | Reference | 0 |
| Archivme | Mobile personal finance platform | Financial | 0 |
| ARCS | Application resource control service | Security | 0 |
| Are My Sites Up? | Website uptime monitoring service | Internet | 0 |
| ArGo Software Address Verifier | Address verification service | Tools | 0 |
| Argos Affiliate | Affiliate management service | Tools | 0 |
| Argos WebService | Satellite-based monitoring service | Mapping | 0 |
| Argus Fundalytics | Energy market economic data service | Financial | 0 |
| Aria | CRM and other business applications | Enterprise | 0 |
| Ariett | Enterprise travel and expense management service | Enterprise | 0 |
| ARIN Reg-RWS | Internet registry service | Internet | 0 |
| ARIN Whois | Interent registry access service | Internet | 0 |
| Ark.com | People search directory | Search | 0 |
| Arkansas GeoStor | Arkansas geographic information service | Mapping | 0 |
| Arne Elofsson's EMBRACE | Miscellaneous bioinformatics services | Science | 0 |
| aRodar | Used motorcycle listings | Advertising | 0 |
| Arrayent | Home automation and remote device monitoring/control service | Tools | 0 |
| art.sy | Artwork information discovery service | Search | 0 |
| Articulate Online | Hosted e-learning service | Education | 0 |
| Arts Alliance Media Locksmith | Digital cinema KDM delivery service | Security | 0 |
| Arts Holland | Dutch cultural event data provider | Travel | 0 |
| Artsicle | Art discovery and rental service | Other | 0 |
| Asana | Task management system | Project Management | 0 |
| ASC National Registry Search | Search service for registered real estate appraisers | Government | 0 |
| ASIROM | Romanian car insurance policy information service | Financial | 0 |
| Ask AMEE | Natural language query service | Search | 0 |
| Ask SciPy | Collaborative question and answer software | Answers | 0 |
| Ask Sponsored Listings | Search engine marketing service | Advertising | 0 |
| Ask Ziggy | Natural language voice activation for applications | Utility | 0 |
| Ask500People | Crowdsource polling service | Answers | 0 |
| AskGeo | Time zone reference service | Mapping | 0 |
| Asos | Beauty and fashion retailer | Shopping | 0 |
| Aspect Search | Hosted search services | Search | 0 |
| ASPECT Vocabulary Bank for Education | Education vocabulary controlled lists | Reference | 0 |
| ASPonline | Assorted Taiwanese internet tools and services | Tools | 0 |
| ASPSMS | SMS messaging service | Messaging | 0 |
| Assay Depot | Pharmaceutical research service catalog | Medical | 0 |
| Assembla | Online project collaboration service | Project Management | 0 |
| Assistly | Online helpdesk tool | Enterprise | 0 |
| Associated Press | News database | News | 0 |
| Associated Press Metadata | News content metadata service | News | 0 |
| AssureSign | Web-based E-signature service | Enterprise | 0 |
| Asterank | Asteroid and comet information database | Science | 0 |
| Asterank Kepler Project | Exoplanet and potential planet information database | Science | 0 |
| Asterank Minor Planet Center | Minor celestial body information database | Science | 0 |
| Asterank SkyMorph / NEAT | Moving and variable celestial object database | Science | 0 |
| Astrid | Task tracking system | Calendar | 0 |
| Astro-Phys.com Ephemeris | Time-based location tables for astronomical objects | Science | 0 |
| Astroboa Resource | Information Management Service | Enterprise | 0 |
| AstutePayroll | Payroll and Invoice Management Service | Financial | 0 |
| AT&T Call Management | Voice and SMS communications for apps | Telephony | 0 |
| AT&T Device Capabilities | Mobile device identification service | Telephony | 0 |
| AT&T In-App Messaging | SMS and MMS messaging service | Messaging | 0 |
| AT&T Location | Location based services | Telephony | 0 |
| AT&T mHealth Platform | Health system backend | Backend | 0 |
| AT&T MMS | Multimedia messaging service | Messaging | 0 |
| AT&T Notary Management | Digital signature service | Security | 0 |
| AT&T Payment | Mobile Payment Service | Payment | 0 |
| AT&T SMS | Mobile SMS Service | Messaging | 0 |
| AT&T Speech | Speech based services | Tools | 0 |
| AT&T Synaptic Compute | Cloud computing services | Internet | 0 |
| AT&T Synaptic Storage | Cloud storage service | Storage | 0 |
| AT&T WAP Push | WAP Push service | Telephony | 0 |
| ATC BusinessLink | Czech IT product retail services | Retail | 0 |
| Athlinks | Endurance athlete race results service | Sports | 0 |
| Atlantic.Net Cloud Servers | Cloud hosting solutions | Internet | 0 |
| Atlas | the global video & audio index | Video | 0 |
| AtlasCT Geo-Services | Maps and location-based services | Mapping | 0 |
| AtlasCT Location-Based Services | Location-based services | Mapping | 0 |
| AtlasCT Mobile Maps | Maps and GPS navigation | Mapping | 0 |
| AtlasCT Places & Check-in | Places and location check-in | Mapping | 0 |
| AtlasCT Static Map | Maps and geo-location content | Mapping | 0 |
| AtlasCT Web Maps | Maps and location-based services | Mapping | 0 |
| Atlassian Crowd | Single Sign On service | Security | 0 |
| AtMail | Webmail Service | Email | 0 |
| Atomic Reach | Social publishing platform | Internet | 0 |
| AtTask | On demand project management software | Project Management | 0 |
| Attempto RACE | Text-based logical reasoning service | Reference | 0 |
| AttendStar | Online event ticketing and promotion service | Events | 0 |
| Attensity | Enterprise social analytics platform | Enterprise | 0 |
| ATutor AChecker | Web accessibility evaluation tool | Internet | 0 |
| ATutor AContent | Learning content authoring platform | Education | 0 |
| ATutor Transformable | Personalized learning service | Education | 0 |
| Au Défi | French Canadian educational games | Games | 0 |
| Auburn City Council Exponare | Local mapping service | Mapping | 0 |
| AuctionInc Shipping | Shipping rate service | Shipping | 0 |
| Auctiva Marketplace Platform | Marketplace platform for eCommerce applications | Shopping | 0 |
| Audiobaba | Music search and recommendation engine | Music | 0 |
| Audioboo | Audio sharing platform | Messaging | 0 |
| AudioBox.fm | Cloud-based audio management | Music | 0 |
| AudioMicro | Stock music and sound effects provider | Music | 0 |
| Audiosocket MaaS | Music licensing agency | Music | 0 |
| Auphonic | Audio post production service | Tools | 0 |
| AuraLink | Online video conferencing service | Video | 0 |
| Australia Post SecurePay | Australian online payment service | Payment | 0 |
| Australian Bureau of Meteorology | Austrailian weather report and forecast service | Weather | 0 |
| Australian Business Register ABN Lookup | Australian Business Number look-up service | Government | 0 |
| Australian Synchrotron | Research data management and transfer services | Science | 0 |
| Australian Tourism Data Warehouse | Australian tourism information service | Travel | 0 |
| AuthDog | Authentication creation service | Security | 0 |
| authorSTREAM | Powerpoint sharing service | Office | 0 |
| Authy | Website and application authentication service | Security | 0 |
| Auto Follow Friday | Twitter contact listing service | Social | 0 |
| Autoaddress | Irish address validation and geocoding service | Shipping | 0 |
| AutoAppMart | In-car application marketplace | Reference | 0 |
| Autodesk AutoCAD | DWG file cloud service | Project Management | 0 |
| Autodesk BIM360 Glue | CAD software resource service | Utility | 0 |
| Automatton Instant Answers | Search engine | Search | 0 |
| Automeme | Automated meme generator | Internet | 0 |
| AutoNetTV Relay Pipe | Automotive video and web content service | Internet | 0 |
| Autotask | Business management software | Office | 0 |
| Avacaster | Event Management for Avacaster webservice | Events | 0 |
| Avalara | Sales tax data service | Financial | 0 |
| AVANTSSAR | Service-oriented architecture security validation service | Security | 0 |
| Avasaram Web Services | Financial Services For Option Traders | Financial | 0 |
| Avatarion Portrait3D | 3D Avatar Creation Service | Photos | 0 |
| Avatars.io | Avatar hosting service | Tools | 0 |
| Avatax Sales Tax | Sales tax management service | Financial | 0 |
| Averitt | Freight transportation services | Transportation | 0 |
| Avetio SMS | SMS gateway service | Messaging | 0 |
| Aviary Mobile | Mobile image editing service | Photos | 0 |
| Aviberry | Video encoding service | Video | 0 |
| AVIN | Wine tracking number repository | Food | 0 |
| Aviresto | French restaurant guide | Recommendations | 0 |
| Avocado | Multimedia messaging service for couples | Messaging | 0 |
| Awarly | Push notification service for applications | Messaging | 0 |
| AWeber Email Marketing | Email Marketing Service | Advertising | 0 |
| AWS Identity and Access Management | User management service for AWS | Other | 0 |
| AXA Banque | French banking service | Financial | 0 |
| Axeda | Machine to machine application platform | Enterprise | 0 |
| Axle | API management and hosting service | Backend | 0 |
| Azukki | Cloud-based game development platform | Games | 0 |
| Azuralis | Norwegian hosted telecommunication service | Telephony | 0 |
| Örebro kommun | Örebro kommun information | Government | 0 |
| b2go | URL shortening service | Internet | 0 |
| B54.in | URL shortening service | Internet | 0 |
| Baba change | Photo sharing Service | Photos | 0 |
| Babbl.me | Twitter long post service | Social | 0 |
| babyTEL Telephone | Mobile voice message and instant message service | Telephony | 0 |
| Babyworld | Social sharing site for families | Social | 0 |
| Bachbill | Cloud-based SaaS delivery service | Tools | 0 |
| Backlog | Project management software | Project Management | 0 |
| Backplane JavaScript | Mediates Between Widgets and Backplane Server | Widgets | 0 |
| Backplane Server | Authenticates Calls to Server | Security | 0 |
| Backstop | Alternative asset management software | Other | 0 |
| Backupify | SaaS backup and recovery service | Enterprise | 0 |
| BACnet Help | Building control network status detection | Other | 0 |
| Bacon Ipsum | Lorem Ipsum generator tool | Tools | 0 |
| Baconfile | Web based file storage interface for Amazon s3 | Storage | 0 |
| Badgeville | Customer loyalty and reward platform | Social | 0 |
| Baker & Taylor EDI | Supplier for libraries and book retailers | Retail | 0 |
| Balanced | Integrated payments for online marketplaces | Payment | 0 |
| Baltimore Open311 | Neighborhood public issue reporting tool | Government | 0 |
| Bambuser Metadata | Live video broadcasting | Video | 0 |
| Bambuser oEmbed | Embedded video player | Video | 0 |
| BancBox | Payment service | Payment | 0 |
| Banckle | Online business collaboration service | Social | 0 |
| Banco de Guatemala Tipo Cambio | Bank of Guatemala exchange rate service | Financial | 0 |
| Bandpage | Band and musician online platform | Music | 0 |
| Bango Analytics | Mobile website analytics service | Tools | 0 |
| Bango Direct Billing | Mobile payment service | Payment | 0 |
| Bango Event Notification | Payment events notification service | Payment | 0 |
| Bango Subscription Billing | Subscription billing service | Payment | 0 |
| Bango User Information | User information retrieval service | Social | 0 |
| Bank Account Checker | Bank account verification service | Financial | 0 |
| Bank of Lithuania Payments | Lithuanian bank payment system monitoring service | Payment | 0 |
| Bank of Lithuania Statistics | Lithuanian bank statistics reference service | Financial | 0 |
| Bank of Russia Daily Info | Bank of Russia financial information | Financial | 0 |
| BankCard Central VERePay | eCommerce gateway | Payment | 0 |
| BankCheck | Online bank account validation | Financial | 0 |
| BankHolidays | Swedish banking holiday lookup service | Reference | 0 |
| BankLZ | German bankcode lookup service | Reference | 0 |
| BankVal International | IBAN and SWIFT validation services | Financial | 0 |
| Banta | Socialised Media Platform Service | Social | 0 |
| Bantam Live | Social CRM tools | Enterprise | 0 |
| Barbershop Tags | Barbershop music sharing and user community service | Music | 0 |
| BarCode Generator | Barcode creation service | Tools | 0 |
| Barcode Scanner | Barcode scanning service | Tools | 0 |
| Barcodes4.me | Barcode and QR code generator | Tools | 0 |
| Barcodesoft | Bar code generating service | Utility | 0 |
| BareMetalCloud | Cloud hosting services | Internet | 0 |
| Barium Live | Business process management service | Enterprise | 0 |
| Barnivore | Vegan alcohol guide | Food | 0 |
| Barzahlen | Secure Payment Service | Payment | 0 |
| Baseball Ipsum | Baseball themed lorem ipsum generator | Tools | 0 |
| BaseBear | Online Database Service | Database | 0 |
| BaseKit | Website creation and hosting service | Internet | 0 |
| bases4you | Brazilian location information services | Tools | 0 |
| Basic Local Alignment Search Tool | Genome database search tool | Reference | 0 |
| Baskytara | Bass guitar web portal | Music | 0 |
| Batchex | Payment distribution platform | Payment | 0 |
| BatchGeo | Online mapping service | Mapping | 0 |
| Battlefield 3 Stats | Battlefield 3 statistic reporting service | Games | 0 |
| Battlefield Bad Company Stats | Player Data and Statistics | Games | 0 |
| Bavarian Authorities Signpost | Local information service for Bavaria | Reference | 0 |
| BayFiles | Cloud storage platform | File Sharing | 0 |
| Baynote | Recommendations service | Recommendations | 0 |
| BayWeb Cloud-EMS | Remote HVAC control service | Tools | 0 |
| Bazaarvoice Platform | Social marketing platform | Social | 0 |
| BBAS Personal Data Repository | Semantic data for scientific biographical information | Reference | 0 |
| BBAW G2L | Greek-Latin text transliteration service | Reference | 0 |
| BBAW ISO-Date | German and Italian text analysis service | Reference | 0 |
| BBAW Places | German text analysis and place name service | Reference | 0 |
| BBS Scene | Bulletin board system services | Reference | 0 |
| BC Wireless | Wireless network community wiki | Internet | 0 |
| BCCR Indicadores Economicos | Costa Rica economic indicator retrieval service | Financial | 0 |
| Bclear | Over-the-counter securities trading service | Financial | 0 |
| BeachGuard | Beach information service | Search | 0 |
| Beacon Push | Real-time push service | Tools | 0 |
| Beanstalk | Hosted subversion and storage service | Tools | 0 |
| Beanstream | Online payment service | Payment | 0 |
| Bearmini Public Holiday | Japanese public holiday reference service | Reference | 0 |
| Beat the Traffic | Real-time traffic application | Transportation | 0 |
| Beddit | Sleep monitoring service | Medical | 0 |
| BeeBole | Online timetracking application | Office | 0 |
| BeEF | Browser security probing service | Security | 0 |
| Beeminder | Goal tracking application | Goal Setting | 0 |
| Beevolve Crawler | Social media monitoring service | Social | 0 |
| Behance | Creative portfolio service | Other | 0 |
| Behind the Name | First name etymology and history database | Tools | 0 |
| Beintoo | App gamification tool | Tools | 0 |
| Belair | Flight booking service | Travel | 0 |
| Belboon | Affiliate marketing network | Advertising | 0 |
| BellaDati | Data analysis and management service | Tools | 0 |
| BeMac PayGate | Payment processing service | Financial | 0 |
| Benchmark Automotive Data | Automotive data and intelligence | Other | 0 |
| Benchmarkemail | Email Marketing API | Email | 0 |
| Bentio | Microblogging Service | Blogging | 0 |
| Berlin Open Data | Berlin data and information | Government | 0 |
| Bertram Books | UK book retailing service | Shopping | 0 |
| Best Buy BBYOpen BBYFeed | eCommerce shopping services | Shopping | 0 |
| Best Buy BBYOpen BBYOffer | eCommerce shopping services | Shopping | 0 |
| Best Buy BBYOpen BBYScan | eCommerce shopping services | Shopping | 0 |
| Best Buy BBYOpen Categories | Shopping categorization service | Shopping | 0 |
| Best Buy BBYOpen Commerce | eCommerce shopping services | Shopping | 0 |
| Best Buy BBYOpen Reviews | Shopping reviews service | Shopping | 0 |
| Best Buy BBYOpen Stores | Retail store data | Shopping | 0 |
| BestParking | Parking Finder | Travel | 0 |
| Besucherzaehler | German visitor counter and locator | Widgets | 0 |
| Betable | Online gambling platform | Games | 0 |
| BetaEasy | Customer feedback and beta management service | Internet | 0 |
| Betaface | Face detection and recognition service | Photos | 0 |
| BetaSignal | News aggregator | Feeds | 0 |
| BETDAQ | Online gambling service | Sports | 0 |
| Betfair Games | Online casino-style games exchange | Games | 0 |
| BeThereNYC | New York City event listing | Events | 0 |
| BetterEncoding | Video encoding software | Video | 0 |
| Betwext Broadcast | SMS messaging service | Messaging | 0 |
| Betwext Remind | SMS reminder service | Messaging | 0 |
| BF2S | Battlefield 2 gamers services | Games | 0 |
| BGC Market Data | Financial information service | Financial | 0 |
| Bible Lookup | Bible lookup service | Other | 0 |
| Bible.org | Bible passage access | Reference | 0 |
| Bibliotek | Danish library holdings database search | Education | 0 |
| BibServer | Bibliographic metadata consolidation and sharing service | Reference | 0 |
| bicingwatch | Listing and mapping public cycling stations | Sports | 0 |
| bidStart | Online collectibles marketplace | Shopping | 0 |
| Big Cartel | Shopping cart service | Shopping | 0 |
| Big Contacts | Web based contact management | Office | 0 |
| Big Content Search | Private Label Rights article database | Media Management | 0 |
| BigDoor | Add game mechanics to your site | Other | 0 |
| BigML | Data and analytics service | Utility | 0 |
| BigOven Recipe | Recipes, grocery list, and nutrition API | Food | 0 |
| BigStock | Image Database Service | Photos | 0 |
| BigTable | Online database service | Database | 0 |
| Bikesy | San Francisco bike route planning service | Mapping | 0 |
| Bikko | Bicycling hobbyist training and social site | Sports | 0 |
| Bilbus | Invoice creation and management service | Financial | 0 |
| Bililite | Health data graphing service | Medical | 0 |
| Bill.com | Store, approve and pay bills online | Financial | 0 |
| billFLO Seller | Invoice management service | Financial | 0 |
| BillingOrchard | Online billing system | Payment | 0 |
| Billy's Billing | Bookkeeping software for entrepreneurs | Office | 0 |
| Bim.im | URL shortener with stats | Tools | 0 |
| Bimshare Upload | 3D model sharing platform | File Sharing | 0 |
| Binary Canary | Website and online resource monitoring service | Utility | 0 |
| BinaryBeast | eSport event tools | Games | 0 |
| BIND SOAP | Chemical structure search service | Search | 0 |
| Bing Maps Spatial Data Services | Mapping geospatial data service | Mapping | 0 |
| Bing Static Maps | Bing static map creation service | Mapping | 0 |
| Bing Webmaster Tools | Bing webmaster data service | Internet | 0 |
| Bintray | Social software distribution platform | Utility | 0 |
| Bintray | Binary package publishing and sharing service | File Sharing | 0 |
| biNu | Mobile application backend service | Backend | 0 |
| BIOBASE | Biological research data repository | Science | 0 |
| BioBricks Public Agreement | Biotechnology in the public interest | Science | 0 |
| BioCatalogue | Life sciences web registry service | Reference | 0 |
| BioCyc | Biological and genome data service | Science | 0 |
| BioDB Hyperlink Management System | Life sciences link database | Science | 0 |
| BioDOM | Bioinformatics data XML converter | Science | 0 |
| Biofab Data Access | DNA sequence data repository service | Science | 0 |
| BioGRID | Biological reference search service | Science | 0 |
| BioLabeler | Library of Medicine text extractor and indexing engine | Medical | 0 |
| BioLit | Annotated biology article search | Science | 0 |
| BiologicalNetworks | Biological pathways analysis and visualization service | Science | 0 |
| BioMart | Scientific database service | Science | 0 |
| BiometryCloud | Face detection and recognition service | Photos | 0 |
| BioMOBY | Plant genome reference service | Reference | 0 |
| Biomolecular Interaction Network Database | Biomolecular database | Reference | 0 |
| BioMortar | Biological modeling service | Science | 0 |
| bioNMF | Biomedical data analysis service | Medical | 0 |
| Biosafety Clearing-House | Living modified organism information exchange | Science | 0 |
| Biosemantics ACCCA | Clinical record annotation service | Medical | 0 |
| Biosemantics JANE | Journal and author name service | Reference | 0 |
| BioWeb.me | Persistent web URL service for science applications | Tools | 0 |
| bipio | API pipelining service | Feeds | 0 |
| BIPS | Bitcoin Payment Service | Payment | 0 |
| BIRT onDemand | Business intelligence reporting service | Enterprise | 0 |
| Biscom Fax | Fax hosting service | Fax | 0 |
| Bistip | Travel and purchase service | Travel | 0 |
| Bit-Pay | Bitcoin payment processing | Financial | 0 |
| Bit.ly Social Data | URL shortening service | Internet | 0 |
| Bitacoras.com | Spanish social blog network | Blogging | 0 |
| Bitcoin Charts / Markets | Bitcoin market data service | Payment | 0 |
| Bitcoin Payflow | Virtual currency payment service | Payment | 0 |
| Bitcoin Sentiment | Bitcoin Sentiment Polling Service | Financial | 0 |
| Bitcoin-Status | Bitcoin Up-time Analysis Service | Financial | 0 |
| Bitcurex | Bitcoin Trading Service | Financial | 0 |
| BitDeli | Data analytics tool | Tools | 0 |
| BiteHunter | Dining Deals Search Service | Shopping | 0 |
| Bitext | Multilingual Semantic Service | Utility | 0 |
| Bitfloor | Bitcoin trading platform | Payment | 0 |
| BitInstant | Bitcoin transfer service | Financial | 0 |
| Bitl.in | URL shortening service | Internet | 0 |
| Bitlan | URL shortening tool | Utility | 0 |
| BitMinter | Bitcoin currency service | Financial | 0 |
| BitMyMoney | Bitcoin Payment and Holding Service | Payment | 0 |
| BitPay Payment Gateway | Bitcoin Payment Service | Payment | 0 |
| Bitrix Platform | Online web design platform | Internet | 0 |
| Bitrix24 | Online workspace platform | Office | 0 |
| Bitsmash | BitTorrent statistics service | File Sharing | 0 |
| Bitsnbobs | UK online marketplace | Shopping | 0 |
| BitStamp | EU bitcoin marketplace | Financial | 0 |
| BitTrust | Internet commodity trading service | Financial | 0 |
| Bizimply | Business sales and shifts information service | Enterprise | 0 |
| Bizo BizAudience | Internet business traget service | Other | 0 |
| bkkeepr | Book reading social services | Social | 0 |
| Black Book Online | U.S. public record search service | Government | 0 |
| Black Country History | UK museum and history information service | Education | 0 |
| Black Lotus Project Price Ticker | Magic: the Gathering card price ticker | Games | 0 |
| Blackboard Collaborate | Online learning platform | Education | 0 |
| BlackLocus | Ecommerce pricing intelligence platform | Enterprise | 0 |
| Blake.lt | Lithuanian microblogging service | Blogging | 0 |
| BLAM Ads | Content locking advertising service | Advertising | 0 |
| Blast Ramp | Order fulfillment and warehouse management service | Shopping | 0 |
| BlastCasta Feed | RSS feed management and filtering service | Feeds | 0 |
| BlazeMeter | Performance and Load Testing JMeter Cloud for Web and Mobile apps and sites. | Internet | 0 |
| Blellow | Microblogging platform and social network | Social | 0 |
| Blesta | Billing Service | Financial | 0 |
| BlinkCampaign | Social Media and Email Marketing platform | Email | 0 |
| BlinkSend | Online document sharing service | File Sharing | 0 |
| Blip A Deal | Group buying and deals site | Shopping | 0 |
| Blipea | Hispanic micro-blogging service | Blogging | 0 |
| Blipfoto | Photo sharing service | Photos | 0 |
| blippr | Recommendations service | Recommendations | 0 |
| Blippy | Social spending service | Shopping | 0 |
| Blipscape | Mobile location based content feed service | Feeds | 0 |
| Blitline | Image processing service | Internet | 0 |
| Blizzard Community Platform | World of Warcraft community | Games | 0 |
| Blobbr | Social polling service | Social | 0 |
| Block Chain Roulette | Bitcoin Game Service | Games | 0 |
| Block Disposable Email | Detect disposable email addresses | Email | 0 |
| BlockBeacon | Food and drink deals | Food | 0 |
| Blockchain Block Explorer | Bitcoin and block chain information service | Financial | 0 |
| BlockChalk | Local community social space | Social | 0 |
| Blocksi | URL filtering tool | Tools | 0 |
| BlogCatalog | Blog directory and community | Blog Search | 0 |
| BlogPingr | Blog ping service | Blogging | 0 |
| BlogSpam.net | Detection for Blog & Forum SPAM | Security | 0 |
| Blogwise | Blog and feed search service | Blog Search | 0 |
| Bloomberg | Financial markets data service | Financial | 0 |
| BloXoo | Blogging platform | Blogging | 0 |
| Blubrry | Media hosting service | Media Management | 0 |
| Blue Mountains Development Applications | Local development application status tracking service | Government | 0 |
| Blueding | Mobile downloading service | Other | 0 |
| Bluefin Technology Partners | Advertising marketplace | Advertising | 0 |
| BlueFolder | service management software | Enterprise | 0 |
| BlueKai | Data management platform and services | Enterprise | 0 |
| Blueleaf | Financial asset and client management platform | Financial | 0 |
| BlueMailCentral Postal | Digital mail service | Utility | 0 |
| BlueMelon | Photo sharing and storage service | Photos | 0 |
| BlueService | Field service management | Enterprise | 0 |
| BlueSnap Buy Anyware | Software registration service | Payment | 0 |
| BlueVia Advertising | Mobile advertising platform | Advertising | 0 |
| Bluevia Location | Mobile geolocation service | Telephony | 0 |
| Bluevia MMS | Two way MMS service | Telephony | 0 |
| Bluevia Mobile Payment | Telephony payment service | Payment | 0 |
| BlueVia SMS | Two-way SMS service | Telephony | 0 |
| BlueVia User Context | Location and mobile user information service | Telephony | 0 |
| Blurb | Social book publishing platform | Social | 0 |
| Bluyah | Data transformation service | Tools | 0 |
| BMAT | Music search and recommendation service | Music | 0 |
| Bnter | Social conversation service | Social | 0 |
| BO.LT | Webpage Sharing Service | Bookmarks | 0 |
| BoardGameGeek | Online boardgame community | Social | 0 |
| Bobik | Website scraping service | Internet | 0 |
| BODC GEBCO Web Map Service | Bathymetric map service | Mapping | 0 |
| BODC Marsden Square Translator Service | Marsden square geolocation service | Mapping | 0 |
| BODC NERC Vocabulary Server | Oceanographic metadata vocabulary service | Science | 0 |
| BodyMedia | Fitness tracking service | Sports | 0 |
| Boingnet | Marketing platform | Enterprise | 0 |
| BOKU | Mobile payments service | Payment | 0 |
| Boldchat | Online chatroom services | Chat | 0 |
| Boliven | Online repository of medical device information | Medical | 0 |
| Boliven Patents | 100 million Patent and Scientific documents | Reference | 0 |
| Boliven Publications | Patent and scientific document portal | Reference | 0 |
| Bonanzle | Interface with online marketplace | Shopping | 0 |
| BonFIRE | Cloud computing consortium | Internet | 0 |
| Bongo | Iowa cities transit data | Transportation | 0 |
| Bongo International | International Shipping Service | Shipping | 0 |
| Bonsai | Online digital graphics library | Media Management | 0 |
| Bontq | Bug and issue tracking service | Tools | 0 |
| Boo-box | Recommendation service | Recommendations | 0 |
| Book Glutton | Convert HTML to EPUB | Utility | 0 |
| Bookabach | Property Rental Service | Travel | 0 |
| Bookie | Bookmarking and web content parsing service | Tools | 0 |
| BookingCenter Booking Engine | Property management services | Real Estate | 0 |
| BookingSync | Could-based Vacation Rental Software | Travel | 0 |
| BookIt | Travel booking services | Travel | 0 |
| Bookleteer | Craft booklet creation service | Entertainment | 0 |
| Bookshare | Accessible Books For Readers with Print Disabilities | Reference | 0 |
| Bookworm ePub Reader | Online book management service | Other | 0 |
| Boom test uitgevers | Dutch educational testing service | Education | 0 |
| Boomi AtomSphere | Application integration platform | Internet | 0 |
| Boomloop | Local events and community | Events | 0 |
| Bootic | online ecommerce solutions | Shopping | 0 |
| Bordom RPC (BRAX) | Crowd-sourced strange news service | Blogging | 0 |
| BotPlatform | Development platform for IM robots | Chat | 0 |
| BotScout | Bot detection service | Security | 0 |
| Bottlenose | Social analytics platform | Social | 0 |
| Bounce MixedResults | Search engine results compiler | Search | 0 |
| Boundary | Real-time cloud environment monitoring service | Utility | 0 |
| Bountii Price Search | Electronics and appliances price comparison service | Shopping | 0 |
| Boutine | Online women's clothing store | Shopping | 0 |
| Bowker Book Metadata Service | Book descriptive metadata service | Shopping | 0 |
| BoxBilling | Billing management service | Financial | 0 |
| Boxee | Media center service | Video | 0 |
| Boxoh | Package tracking service | Shipping | 0 |
| boxPAY Merchant | Self-service payment platform | Payment | 0 |
| br.st | Twitter web based client, url shortener and image sharing | Social | 0 |
| Brain Maps | Brain section images | Reference | 0 |
| Braineos | Flashcards and learning games service | Education | 0 |
| BrainHoney | Virtual learning management system | Education | 0 |
| Braintree | Online payment processing service | Payment | 0 |
| Bramus Simple REST API Explorer | REST API endpoint exploration service | Tools | 0 |
| Brand Content Chat | Live chat with advertising company's receptionist | Advertising | 0 |
| BrandMyMail | Email and social media integration platform | Email | 0 |
| Brazil CKAN | Brazil open government data | Government | 0 |
| Brazilian Election Candidates | Brazilian election candidate information service | Government | 0 |
| Breadcrumbs | GPS data sharing service | Mapping | 0 |
| Breeziee | File Selling Service | Shopping | 0 |
| Breezy | Mobile printing app | Tools | 0 |
| BrickFTP | Hosted FTP/file sharing service | File Sharing | 0 |
| Brickset | Lego database lookup service | Search | 0 |
| Brightcloud | Website filtering data service | Security | 0 |
| BrightContext | Real time Big Data Processing PaaS | Tools | 0 |
| Brightcove Player | Video publishing service | Video | 0 |
| Brighter Planet Climate Data | Reference data (e.g. zip codes, airlines, automobiles) | Other | 0 |
| BrightFuse | Networking community and job resource | Social | 0 |
| Brightidea | Enterprise social management service | Enterprise | 0 |
| Brightpearl | Business management tool | Enterprise | 0 |
| Brightroll | Video advertising platform and network | Video | 0 |
| BrightTalk | Webinar and video meeting service | Enterprise | 0 |
| Bring Cargo | U.K. and European cargo delivery service | Shipping | 0 |
| BringIt | Game monetization platform | Games | 0 |
| BriteVerify | Realtime email data verification | Email | 0 |
| British Museum | Museum linked data service | Education | 0 |
| Broken Storm Short URL | URL Shortening Service | Tools | 0 |
| Broker Visions | Secondary ticket broker platform | Shopping | 0 |
| Bronto | Email marketing service | Email | 0 |
| Brownbook OpenSearch | Business directory service | Search | 0 |
| Browsemob | Name-your-price ecommerce platform | Shopping | 0 |
| BrowserID | Website sign in service | Internet | 0 |
| Browsershots | Web site compatibility testing service | Internet | 0 |
| Browshot | Screenshot and website sizing and testing service for multiple devices | Utility | 0 |
| BSE Stock Quotes | Indian stock exchange information service | Financial | 0 |
| BTBuckets | Personalization and behavior targeting tool | Tools | 0 |
| BTC to X | Bitcoin Exchange Rate Calculator | Financial | 0 |
| BTC-e | Bitcoin Trading Service | Financial | 0 |
| BTCMine | Pooled Bitcoin mining server | Financial | 0 |
| BTCtoX | Bitcoin exchange rate calculator | Financial | 0 |
| btexty | Text messaging service | Messaging | 0 |
| bubblebox:mailer | Email marketing campaign service | Email | 0 |
| Buck | Mobile payment service | Payment | 0 |
| Buddy Media | Social media marketing platform | Social | 0 |
| Buddycloud | Social location service | Social | 0 |
| buddyfetch | Social network search engine | Social | 0 |
| Budget Your Trip | Travel planning service | Travel | 0 |
| BudURL | URL shortening service | Internet | 0 |
| BudURL.Pro | URL shortening service | Internet | 0 |
| Bueda | Semantic analysis for user tags | Social | 0 |
| BugetMD | Moldovan government information service | Government | 0 |
| BugHerd | Website bug tracking service | Other | 0 |
| Bugly | Issue tracking app | Project Management | 0 |
| Bugrocket | Bug tracking tool | Tools | 0 |
| Bugsense | Real-time bug tracking service | Tools | 0 |
| Bugsnag | Application error notification service | Tools | 0 |
| Bugswarm | Data Acquisition and Control Service | Tools | 0 |
| Bugzilla | Bug-tracking service | Tools | 0 |
| BuiltWith | Website information service | Internet | 0 |
| BukGet | Minecraft plugin repository access service | Games | 0 |
| BulkSMS | Global SMS messaging | Messaging | 0 |
| Bulletin Connect | SMS Application Development Service | Messaging | 0 |
| Bulletin Messenger | SMS Service Provider | Messaging | 0 |
| Bullhorn Staffing | Job recruiting info service | Job Search | 0 |
| Bullseye Lead Manager | Lead capturing and management service | Enterprise | 0 |
| Bullseye Store Locator | Store location search service | Shopping | 0 |
| Bullseyehub | Event promotion service | Events | 0 |
| Bums.se | Photo sharing and storage service | Photos | 0 |
| Bunchball | Multiplayer game platform | Games | 0 |
| Bundle | Money managing community and service | Financial | 0 |
| Bunker App | Project management platform | Project Management | 0 |
| Burning Man | Event database | Events | 0 |
| burrp | Local business search service | Search | 0 |
| Burstly | Monetization platform for app developers | Advertising | 0 |
| Business Alerts | Instant alert system | Messaging | 0 |
| Business Profiles | Business operating information service | Enterprise | 0 |
| BusinessRadar | Business deal listing service | Other | 0 |
| BusOnAir | Italian bus route and transit service | Transportation | 0 |
| Buto.tv | Video hosting service | Video | 0 |
| Buxfer | Personal finance service | Financial | 0 |
| Buxter | Transfer money over Facebook | Payment | 0 |
| Buxville | Database access service for custom Minecraft server | Games | 0 |
| buy.at | Affiliate marketing service | Shopping | 0 |
| BuyAds | Direct advertising platform | Advertising | 0 |
| BuycPanel | cPanel license vendor | Internet | 0 |
| BuyDeals.in Local Deal | Local Group Buy Aggregation Service | Shopping | 0 |
| Buyfolio Partner | Home Buying Service | Real Estate | 0 |
| Buyvite Transaction | Group purchasing service | Payment | 0 |
| Buzzboot | Social Business Service | Social | 0 |
| BuzzGame | Search based game | Games | 0 |
| Buzzoola | Video hosting and distribution platform | Video | 0 |
| Buzzzy | Google Buzz Search Engine | Search | 0 |
| BView | Local vouchers and offers | Shopping | 0 |
| Bview Content | Local business info service | Reference | 0 |
| Bview Local Search | Local retail search service | Shopping | 0 |
| Bview Promotion | Aggregate coupons for UK retailers | Shopping | 0 |
| By Voice | Text-to-speech conversion service | Utility | 0 |
| Byomei | Japanese disease reference service | Medical | 0 |
| Bypass CAPTCHA | CAPTCHA Bypass Service | Tools | 0 |
| bytehand | Russian bulk SMS service | Messaging | 0 |
| BYU Academic | University course and curriculum support service | Education | 0 |
| BYU Email Verification | University email verification service | Email | 0 |
| BYU Entrance Exams | University exam reporting service | Education | 0 |
| ByVoice | Text to speech service | Utility | 0 |
| C24 Validation | SWIFT message validation service | Financial | 0 |
| C2RouteApp | Route Optimization Service | Transportation | 0 |
| C6 Huzip | Hungarian zip code look-up service | Tools | 0 |
| Cabana | Mobile application building and backend service | Backend | 0 |
| Cabfix | Taxi cab booking service | Transportation | 0 |
| Cabforce | Taxi booking and payment service | Transportation | 0 |
| Cabinet | Document Management Service | Office | 0 |
| Cachedailydeals | Daily Deals Service for Cache Valley | Shopping | 0 |
| Cacoo | Online flowcharting and diagramming service | Other | 0 |
| Cactus Media | Online advertising service | Advertising | 0 |
| CADEC | Composite materials analysis application | Tools | 0 |
| Cadmus | Social media stream management service | Social | 0 |
| CafeSpot | Social guide to cafes | Other | 0 |
| CakeEngine | Email Marketing Service | Email | 0 |
| CakeMail | Email marketing service | Email | 0 |
| Calameo | Document publication and sharing service | Internet | 0 |
| CalcXML Financial Calculator | Financial data calculation service | Financial | 0 |
| Calgoo | Online calendaring service | Calendar | 0 |
| California ISO | Utility regulatory information system | Government | 0 |
| California Lottery | State lottery game information service | Entertainment | 0 |
| California Race and Ethnic Population Projections | California race and ethnic population projection data | Government | 0 |
| California Restaurant Association Demographics | California restaurant customer information service | Food | 0 |
| Call me | Hide contact details on the internet | Security | 0 |
| Call Tracking Metrics | Telephone call tracking service | Telephony | 0 |
| Call-Em-All | Automated phone calling system | Telephony | 0 |
| Called.in Phone Verification | Phone number verification service | Telephony | 0 |
| CallFire Cloud | Business and campaign telephony management service | Telephony | 0 |
| CallFire Direct Connect | Targeted call back service | Telephony | 0 |
| Callfire Hosted Call Center | Call center agent service | Telephony | 0 |
| CallFire List Service | Contact list management service | Telephony | 0 |
| CallFire Record | Record campaign management service | Telephony | 0 |
| Callfire Voice Broadcast | Phone campaign service | Telephony | 0 |
| CallME Click-to-Call | Phone and SMS messaging service | Telephony | 0 |
| CallMyApp | Online cron service | Tools | 0 |
| Callook | US amateur radio callsign lookup | Reference | 0 |
| CallPixels | Pay-per-call tracking for affiliate networks | Telephony | 0 |
| Callsup | Discounted international calls service | Telephony | 0 |
| CallWithUs | International phone callback service | Telephony | 0 |
| CallZing Voice Broadcast | Virtual call center service | Telephony | 0 |
| CalorieKing | Food information service | Reference | 0 |
| Cambrian House | Crowdsourcing service | Social | 0 |
| Cambridge Dictionaries Online | RESTful Access to Cambridge Dictionaries Online Services | Dictionary | 0 |
| Cambridge Journals Online | Cambridge University Press collections | Reference | 0 |
| Cambridge Lookup/Ibis Web Service | Online Contact Retrieval Service | Reference | 0 |
| Cambridge University Library | Library catalog and services | Reference | 0 |
| Camera Plus | iPhone photo application | Photos | 0 |
| CampaignCog | Email marketing campaign service | Email | 0 |
| Campaigner Elements | Email marketing campaign management service | Email | 0 |
| CampaignerCRM | CRM and email marketing service | Enterprise | 0 |
| CampBX | Bitcoin Trading Service | Financial | 0 |
| Campus Notes | Class note management software | Education | 0 |
| CampusCash Mobile | Mobile Advertising Service | Advertising | 0 |
| CampusLink | Educational institution operations support service | Education | 0 |
| Canada Post | Canadian postage and mailing service | Shipping | 0 |
| Canada's Economic Action Plan | Information of Canadian government EAP | Government | 0 |
| Cancer Bioinformatics Infrastructure Objects | Cancer-related scientific information service | Science | 0 |
| CanDoo SMS | Iranian SMS text messaging service | Messaging | 0 |
| Capital One | Credit card identity service | Financial | 0 |
| Capptain | Mobile apps analytics service | Tools | 0 |
| Capsule CRM | Online CRM service | Enterprise | 0 |
| CaptChair | Image-based captcha service | Security | 0 |
| Captricity | Data digitization service | Tools | 0 |
| Carbon Calculated | Enterprise Carbon Management | Tools | 0 |
| Carbonite Blog Importer | Online blog backup service | Storage | 0 |
| Card.io | Mobile payment service | Payment | 0 |
| CardFlight | In-application credit card payment service | Payment | 0 |
| CardMeeting | Online collaboration service | Messaging | 0 |
| CardSpring | Payment network service | Payment | 0 |
| CareerOneStop | U.S. Department of Labor career information service | Job Search | 0 |
| Caribbean Vacation Connect | Social network for Caribbean travelers | Social | 0 |
| CarJam | New Zealand car facts history service | Reference | 0 |
| Carloadboard | Vehicle transport load matching service | Transportation | 0 |
| Carmalink | Vehicle Data Collection Service | Transportation | 0 |
| Carpool2Camp | Carpooling service for transportation to camp | Transportation | 0 |
| CarQuery | Automobile information | Reference | 0 |
| Carrier Pigeon | E-mail marketing service | Email | 0 |
| Carrier411 | Trucking and transportation provider monitoring service | Transportation | 0 |
| Carriots | Application building and backend service | Backend | 0 |
| Carsolize | Travel booking service | Travel | 0 |
| Cart2Cart | Shopping cart migration service | Shopping | 0 |
| CartGenie OX | Online ordering and payment service | Payment | 0 |
| CarTrawler Accelerate | Car rental service | Transportation | 0 |
| CarweB | European automobile registration information service | Transportation | 0 |
| Cash-Ticket Merchant | Secure Payment Service | Payment | 0 |
| Cashboard | Financial and time tracking service | Enterprise | 0 |
| CashEdge TransferNow | Online funds transfer service | Financial | 0 |
| CashFlows | Web and mobile payment platform | Payment | 0 |
| CashOrTrade | Ticket Selling and Trading Service | Feeds | 0 |
| CashStar | Digital gifting service | Enterprise | 0 |
| cashU | Payment service for Arabic-speaking countries | Payment | 0 |
| Caspio Bridge | cloud computing integration service | Database | 0 |
| CASPUR | Amino acid structural analysis service | Science | 0 |
| Castilla-La Mancha | Spain tourism information service | Travel | 0 |
| CastingWords | Audio Transcription Service | Tools | 0 |
| CasualCafe | Flash games provider | Games | 0 |
| CatalogWS | Academic library | Reference | 0 |
| CatApplus | Android app organization service | Tools | 0 |
| Catch-A-Cab | Cab booking service | Transportation | 0 |
| Catch.com | Content capturing and notes application | PIM | 0 |
| Catchpoint | Web performance monitoring service | Enterprise | 0 |
| CatLab Bitcoin Gateway | Bitcoin Transfer Service | Payment | 0 |
| Catsone | Recruiting information service | Job Search | 0 |
| CAVAL | Interoperable standards-based travel booking services | Travel | 0 |
| cBio Cancer Genomics Data Server (CGDS) | Cancer-related scientific information service | Science | 0 |
| CBRC MAFFT | Multiple sequence alignment service | Science | 0 |
| CBS Local Offers | Local Deals Listings | Shopping | 0 |
| CBSSports.com | Fantasy sports platform | Sports | 0 |
| CCHits | Creative Commons Music Podcasts Service | Music | 0 |
| CCKF RealizeIt | Adaptive learning platform | Education | 0 |
| ccmixter Sample Pool | Community Music Service | Music | 0 |
| CD Universe | Online CD and music retailing service | Music | 0 |
| CDC Wonder | CDC health statistics retrieval service | Medical | 0 |
| CDYNE | Data delivery services | Other | 0 |
| CDYNE 411 | Directory assistance service | Reference | 0 |
| CDYNE Death Index | Access to the Social Security Death Index | Reference | 0 |
| CDYNE Delayed Stock Quote | Stock quote service | Financial | 0 |
| CDYNE Demographics | Neighborhood level demographics service | Reference | 0 |
| CDYNE Email Verification | Email verification service | Email | 0 |
| CDYNE IP2Geo | Geolocate by IP address | Tools | 0 |
| CDYNE Notify | Create voice messages from text | Other | 0 |
| CDYNE Phone Verification | Phone number verification service | Security | 0 |
| CDYNE Postal Address Verification | Postal address verification service | Security | 0 |
| CDYNE Profanity Filter | Profanity filtering service | Security | 0 |
| CDYNE SMS Notify | SMS messaging service | Messaging | 0 |
| CDYNE SpellChecker | Spellcheck service | Tools | 0 |
| CDYNE Weather | Weather forecasting service | Weather | 0 |
| CEERN | Conservation and Environment Resource Database | Reference | 0 |
| Celebros Salesperson | SaaS sales support service | Enterprise | 0 |
| Celery | Pre-order and pre-payment service | Shopping | 0 |
| CellBase | Relational database of biology information | Science | 0 |
| Cellblock | Real-time Multimedia File Sharing | Media Management | 0 |
| Cellcom SmsGate | Hebrew bulk SMS service | Messaging | 0 |
| Cellfire | Electronic coupon and discount service | Shopping | 0 |
| Cellid | Cellular phone signal location service | Telephony | 0 |
| CellTrust | SMS messaging | Messaging | 0 |
| Celly | URL shortener with stats | Tools | 0 |
| Celoxis | Scheduling and project management service | Project Management | 0 |
| Celtra AdCreator | Mobile advertising service | Advertising | 0 |
| CensorNet Hosted Web Security | Web security service | Security | 0 |
| CENSUS.IRE.ORG | 2010 census data access service | Government | 0 |
| Cent2Cent | Digital content ecommerce platform | Retail | 0 |
| Center for Biological Sequence Analysis | Biological sequence and molecule analysis services | Science | 0 |
| CenterPoint Energy Usage History Inquiry | Houston electricity usage data service | Education | 0 |
| Centers for Disease Control (CDC) Content Syndication | Health information content syndication service | Medical | 0 |
| Centili | Mobile payments service | Payment | 0 |
| Central Bank of Armenia Exchange Rates | Armenian exchange rate service | Financial | 0 |
| CentralDesktop | Online collaboration software | Enterprise | 0 |
| CentralInfo.net | Web hosting reseller program | Internet | 0 |
| Centzy | Local services information source | Recommendations | 0 |
| CEPT Retina | Semantic fingerprinting service | Search | 0 |
| Cerego iKnow | Social cognitive learning service | Other | 0 |
| CereVoice Cloud | Multilingual text-to-speech service | Utility | 0 |
| Cerrio | Cloud-based data storage and sharing service | File Sharing | 0 |
| Certain | Event management service | Events | 0 |
| Cevir Turkish-English Dictionary | Turkish-English Dictionary look up service | Reference | 0 |
| CFEngine | Enterprise-grade IT frameworking platform | Enterprise | 0 |
| CG General Store Auto 3D Head | photo 2 avatar : 3D reconstruction service | Photos | 0 |
| CGI Insurance Information Services | Auto insurance policy and claims information service | Financial | 0 |
| Chalkable | Education application service | Education | 0 |
| Challenge.gov | Government challenge/solution platform | Government | 0 |
| Challonge | Tournament Management Tools | Sports | 0 |
| Change.org | World Petition Platform | Social | 0 |
| ChargeBee | Subscription billing service | Payment | 0 |
| Chargify | Online recurring payments service | Payment | 0 |
| Charities Commission | charity database service | Database | 0 |
| Charity Navigator | Search charity records | Other | 0 |
| Charlotte City Club Photo Album | Event hosting club photo album retrieval service | Photos | 0 |
| chartbeat | Website analytics service | Internet | 0 |
| ChartBoost | Mobile app promotion platform | Advertising | 0 |
| Chase Paymentech | Online payment service | Payment | 0 |
| Chatterbox | Sentiment analysis and analytics service | Social | 0 |
| Chatterous | Group chat service | Chat | 0 |
| ChEBI | Chemical entity search service | Science | 0 |
| Checkbox | Hosted survey and questionnaire service | Social | 0 |
| Checkfront | Booking management service | Enterprise | 0 |
| CheckInOn.Me | Automated personal safety system | Security | 0 |
| CheckIP | IP lookup service | Security | 0 |
| Checklist.com | Personal task list service | PIM | 0 |
| Checkmarkable | Checklist creation service | Tools | 0 |
| CheckMarket Survey | Online survey solutions | Tools | 0 |
| CheckMEND | Pawn and second-hand trader item verification service | Retail | 0 |
| Cheddar | text-based task management platform | PIM | 0 |
| CheddarGetter | Subscription-based payment and management service | Payment | 0 |
| Cheeseformice | Unofficial Transformice leaderboard | Games | 0 |
| Cheeso's Looky Book Service | Simple book search | Search | 0 |
| Cheeso's Zipcode Lookup Service | Zip code look-up service | Tools | 0 |
| ChemBank | Biomedical database | Medical | 0 |
| ChEMBL | Chemical compound search service | Science | 0 |
| Chemcaster | Cheminformatics management platform | Reference | 0 |
| ChemGPS | Chemical analysis and mapping service | Science | 0 |
| Chemical Identifier Resolver | Chemical compound nomenclature service | Science | 0 |
| ChemSpider | Chemical structure database | Science | 0 |
| ChemSpider InChi Resolver | Chemistry research information service | Science | 0 |
| Chess Pastebin | Chess match sharing service | Games | 0 |
| Chevereto | Image hosting service | Media Management | 0 |
| Chicago Boundary Service | Illinois geographic boundary data | Mapping | 0 |
| Chicago Metropulse | Chicago quality of life data | Government | 0 |
| Chictopia | Online fashion community | Social | 0 |
| China Cancer Database | Chinese cancer information database | Medical | 0 |
| China Historical GIS | Chinese history and geography information service | Reference | 0 |
| China Mobile 139.com | Chinese social networking site | Social | 0 |
| China Telecom | Telecom Information Applications | Telephony | 0 |
| China Web DB | Chinese internet information service | Wiki | 0 |
| Chinese Character Web | Chinese language glyph generation service | Utility | 0 |
| Chinese PostalCodeSearch | Chinese postal code lookup service | Reference | 0 |
| Chinese Seal Chop Image | no longer available | Tools | 0 |
| Chirpify | eCommerce via Twitter service | Payment | 0 |
| Chitika | Website Monetization Service | Advertising | 0 |
| ChompOn | Group-buying platform for publishers | Shopping | 0 |
| ChowNow | Restaurant application service | Food | 0 |
| Christian Social Graph | Christian volunteer opportunities directory | Search | 0 |
| ChristianChirp | Christian social networking service | Social | 0 |
| ChromA | Chromatography-mass spectrometry alignment service | Science | 0 |
| Chrometa | Time tracking service | PIM | 0 |
| Chronicless for the Secret World | Game information tool | Games | 0 |
| Chronicling America | Archive of US newspapers | News | 0 |
| Chronomove | Multimodal and ridesharing transportation information service | Transportation | 0 |
| Church Analytics | Web traffic analytics service | Internet | 0 |
| ChurchCommunityBuilder | Church Organizational Service | Social | 0 |
| ChurchZip | Global church locator service | Tools | 0 |
| Chute | Media management service | Media Management | 0 |
| Chute Media | Photo application development tools | Photos | 0 |
| CIA.vc | Open Source Version Control Tools | Tools | 0 |
| CIC Credit | Credit Reporting Service | Financial | 0 |
| CICC gNova | Chemical database search | Science | 0 |
| CinchCast | Content sharing service | Social | 0 |
| Cincopa | Rich media website platform | Media Management | 0 |
| CinemaTorrents | Movie Torrent Search | Search | 0 |
| Cineworld | UK cinema information | Entertainment | 0 |
| Cing | Deal and coupon service | Other | 0 |
| CIPF RENATO | Genetic regulatory network information service | Science | 0 |
| CIPRES | Supercomputing rescource | Internet | 0 |
| CIR VA Backlog | Veterans Affairs benefits data | Government | 0 |
| CircleCI | Code testing and deploying service | Tools | 0 |
| Circonus | Enterprise IT monitoring platform | Enterprise | 0 |
| Cisco IM & Presence | Instant messaging service | Messaging | 0 |
| Cisco Jabber Voice & Video | Browser-based telephony service | Telephony | 0 |
| Cisco Unity Connection Messaging Interface | Voice messaging service | Messaging | 0 |
| Cisco WebEx | Conferencing and collaboration services | Enterprise | 0 |
| cisimple | Mobile application testing and deployment service | Tools | 0 |
| CitedIn | PubMed citation tracking service | Search | 0 |
| CiteULike | Citation management service | Reference | 0 |
| CitizenNet | Online advertising management platform | Advertising | 0 |
| CitizenSpace | Consultation and Engagement Service | Project Management | 0 |
| Citrix Online GoToMeeting | Online meeting service | Enterprise | 0 |
| Citrix Online GoToTraining | Online training service | Enterprise | 0 |
| Citrix Online GoToWebinar | Web Conferencing | Enterprise | 0 |
| City of Boston Citizen's Connect | Boston residents reporting service | Government | 0 |
| City of Chicago Data Portal | Chicago datasets | Government | 0 |
| City of Edmonton Open Data Catalogue | City of Edmonton datasets | Government | 0 |
| City of Nanaimo | Nanaimo, B.C., datasets | Government | 0 |
| City of New Orleans | New Orleans city data | Government | 0 |
| City of Palo Alto | City of Palo Alto open data | Government | 0 |
| City of Rennes | City of Rennes, France datasets | Government | 0 |
| City of St. Louis | City of St. Louis data | Government | 0 |
| City of Tempe Local Weather | Local Arizona weather information service | Weather | 0 |
| City of Toronto: 311 | Toronto city government services | Government | 0 |
| City Rewards Network | Consolidated local coupons and deals service | Shopping | 0 |
| CityBikes | Bike sharing network information service | Transportation | 0 |
| CityGrid Advertising | Local advertising service | Advertising | 0 |
| CityGroups | Local public directory | Reference | 0 |
| CityPockets | Daily deal and voucher aggregation service | Shopping | 0 |
| Cityworks | Municipal functions management service | Government | 0 |
| Civic Commons Marketplace | Open government data database and sharing platform | Government | 0 |
| Civic Footprint | Political geography lookup for Illinois | Government | 0 |
| CivicApps Restaurant Inspections | Restaurant food safety information service | Government | 0 |
| Civicboom | News crowdsourcing platform | News | 0 |
| CKAN | Data portal platform service | Internet | 0 |
| CKAN Czech Republic | Czech Republic open government data | Government | 0 |
| CKAN Ireland | Ireland open government data | Government | 0 |
| CKAN Italy | Italian open government data | Government | 0 |
| CKAN Norway | Norway open government data | Government | 0 |
| CLAIMS DIRECT | Patent information service | Search | 0 |
| Clarabridge | Sentiment and text analytics software | Enterprise | 0 |
| Clarity | Phone conversation management app | Telephony | 0 |
| Clarity Accounting | Online accounting service | Financial | 0 |
| Clarizen | Project management and collaboration platform | Project Management | 0 |
| Classmarker | Online hosted testing service | Education | 0 |
| Claude Hussenet Anagram | Anagram retrieval service | Games | 0 |
| Clay.io | HTML5 Game Development | Games | 0 |
| Clean Power Estimator | Renewal energy impact estimation service | Weather | 0 |
| Clean Power PowerBill | Electrical power cost estimation service | Financial | 0 |
| Clean Power SolarAnywhere | Solar energy information service | Weather | 0 |
| Cleanify | Simplify Spotify shortened URLs | Tools | 0 |
| Clear Books | Online accounting service | Financial | 0 |
| Clear Read | Article text and metadata extraction tool | Tools | 0 |
| ClearDB | Cloud based database | Database | 0 |
| Clearhaus Gateway | European payment processing service | Payment | 0 |
| Clearhaus Resolve | European payment transactions | Payment | 0 |
| Clearspring | Widget creation, distribution, and tracking services | Widgets | 0 |
| Cleartrip Hotel | Hotel booking service | Travel | 0 |
| Clearvoice Surveys | Online survey service | Answers | 0 |
| Clearwire Location Platform | Location based tracking service | Telephony | 0 |
| Cleeng | Publisher Content Management & Sales Service | Tools | 0 |
| Clerk | Cloud-based hotel management platform | Travel | 0 |
| Clever | Data management for schools | Education | 0 |
| CleverReach | Email marketing and delivery service | Email | 0 |
| CleverSet | Recommendations service for eCommerce sites | Recommendations | 0 |
| Clevertim | Customer management system | Enterprise | 0 |
| Click A Taxi | Taxi cab booking service | Transportation | 0 |
| Click&Pledge | Charity and not-for-profit payment service | Payment | 0 |
| Click.st | Social Media Marketing platform | Social | 0 |
| Click2mail | web-based email service | Email | 0 |
| Click2Stream | Streaming video platform | Video | 0 |
| ClickAider | PPC ad tracking service | Advertising | 0 |
| Clickatell Connect | In app SMS messaging service | Messaging | 0 |
| Clickatell FTP | SMS messaging services via FTP | Messaging | 0 |
| Clickatell SMPP | SMS messaging services via SMPP | Messaging | 0 |
| Clickatell SMTP | SMS messaging services via SMTP | Messaging | 0 |
| Clickatell XML | SMS messaging services | Messaging | 0 |
| ClickBank | Online retail outlet | Shopping | 0 |
| ClickBook | Online appointment management service | Calendar | 0 |
| ClickDesk Live Chat | Live customer support service | Enterprise | 0 |
| ClickHQ | CRM and sales management service | Enterprise | 0 |
| Clickmap | Usability analytics service | Internet | 0 |
| ClickMeeting | Virtual conferencing platform | Telephony | 0 |
| Clickmeter | Marketing campaign effectiveness service | Email | 0 |
| ClickTale | Website visitor activity tracking service | Internet | 0 |
| Clickworker | Crowdsourcing service | Social | 0 |
| ClicRDV | Calendar and Appointment Scheduling Software | Calendar | 0 |
| ClientBill | Online invoicing service | Office | 0 |
| ClientRocket | Business loyalty solutions | Enterprise | 0 |
| CliFlo | New Zealand climate information service | Weather | 0 |
| Climate Counts | Corporate climate change monitoring service | Other | 0 |
| ClimbingWeather.com | Climbing area weather data | Sports | 0 |
| ClinicalTrials.gov | Clinical trials database and registry | Medical | 0 |
| Clio | Legal practice management service | Office | 0 |
| Clipped | Document and URL summarization service | News | 0 |
| Cliqset | Social content sharing and discussion | Social | 0 |
| Cloanto Currency Server | Currency exchange rate and information service | Financial | 0 |
| Clobucks | Russian affilate marketing platform | Advertising | 0 |
| Clodoc | Clojure programming documentation service | Reference | 0 |
| ClojureDocs | Clojure programming language example repository | Reference | 0 |
| Cloud Assault | Website testing service | Internet | 0 |
| Cloud CMA | Online real estate report generator | Real Estate | 0 |
| Cloud CMS | Cloud based CMS for mobile apps | Enterprise | 0 |
| Cloudability | Cloud spend management and monitoring service | Internet | 0 |
| Cloudant | Data scaling platform | Tools | 0 |
| CloudBank | Crowd-sourced language learning service | Education | 0 |
| CloudBees HTTP | Java application development platform | Backend | 0 |
| CloudBlocks CloudQuartz | Cron job scheduling service | Tools | 0 |
| CloudCache | Cache in the cloud | Storage | 0 |
| Cloudcommons Insight | Cloud hosting and storage information service | Storage | 0 |
| CloudCracker | Password Cracking Service | Security | 0 |
| CloudFab | 3D customizing and printing platform | Other | 0 |
| CloudFactory | Virtual work service | Tools | 0 |
| CloudFlare Client Interface | Content delivery network | Internet | 0 |
| CloudFlare Hosting Provider | Content delivery network | Internet | 0 |
| CloudHarmony | Hosting service uptime and reporting service | Internet | 0 |
| CloudHub | Application development and hosting platform | Internet | 0 |
| Cloudinary | Digital asset management service | Media Management | 0 |
| Cloudkick | Cloud server monitoring tool | Internet | 0 |
| CloudMade Geocoding | Forward and Reverse Geocoding Service | Mapping | 0 |
| CloudMade NavEngine | Driving directions service | Mapping | 0 |
| Cloudo | Web OS application development platform | Tools | 0 |
| CloudPassage | Security service for cloud servers | Security | 0 |
| CloudSigma | Cloud hosting services | Internet | 0 |
| CloudSponge Address Book | Address book contacts import service | Office | 0 |
| CloudTalk | Voice communications platform for applications | Telephony | 0 |
| CloudVertical | Cloud cost management system | Internet | 0 |
| Cloudvox Digits | Telephone number look up service | Telephony | 0 |
| Cloudwords | Translation project management platform | Project Management | 0 |
| CloudWork | Integration as a Service platform | Backend | 0 |
| CloudyRec | Mobile application backend service | Backend | 0 |
| Clover | One-tap payment service | Payment | 0 |
| Club Log | Ham radio log creation and analysis service | Other | 0 |
| Club Texting | Sending and Receiving SMS | Messaging | 0 |
| CMB Mutual Funds Portfolio Values | Turkish mutual fund information service | Financial | 0 |
| CMB Prohibited Investors Service | Turkish listing of prohibited investors | Financial | 0 |
| CMDI | Political fundraising service | Politics | 0 |
| CME DataCloud | CME market data service | Financial | 0 |
| cnFOL | Chinese microblogging service | Blogging | 0 |
| Co-op | Project time tracking and tasks | Project Management | 0 |
| CO-OPS | Coastal oceanographic information service | Science | 0 |
| CO2 Benchmark | CO2/greenhouse gas estimation service | Science | 0 |
| CO2Stats | Web site energy usage monitoring service | Internet | 0 |
| CoboCards | Flashcard and studying application | Education | 0 |
| Cobot | Coworking management software | Enterprise | 0 |
| Cocoa | Biological text annotation service | Science | 0 |
| Cocoafish | Backend service for mobile applications | Backend | 0 |
| Codaset | Project management software | Project Management | 0 |
| Code.org Local School Database | Local programming course finder | Education | 0 |
| Codeanywhere | Browser-based code editing service | Tools | 0 |
| Codebase | Software project management service | Project Management | 0 |
| Codebits | Codebits Conference Information Tools | Events | 0 |
| Codebump GeoPlaces | ZIP Code and city location and information service | Mapping | 0 |
| Codebump Zip Codes | Zip code look-up service | Tools | 0 |
| CodeGenerate | Barcode Creation Service | Shipping | 0 |
| CodeLesson | Online programming classes | Education | 0 |
| CodeMunch | Job listing platform | Job Search | 0 |
| CodePorting C#2Java | Code conversion tool | Tools | 0 |
| Codeproof MDM | Mobile device management service | Security | 0 |
| CodeREADr | Barcode scanning service | Utility | 0 |
| Coderwall Profile | User profile data service | Social | 0 |
| Codesion | Cloud-based code management solution | Internet | 0 |
| CodeSnipp.it | Code sharing service | Internet | 0 |
| CodeStock 2011 | CodeStock event information | Other | 0 |
| Codestre.am Embed | Embedding service for computer terminal recordings | Internet | 0 |
| Coface ICON | Business credit report purchasing and selling | Enterprise | 0 |
| CoffeeBean | Social media sales prospecting and relationship management service | Enterprise | 0 |
| Cofundos | Service and network for open source collaboration | Job Search | 0 |
| Cogent Mobile | Mobile voice CRM service | Office | 0 |
| Cogenz | Social bookmarking service | Bookmarks | 0 |
| Coghead | Web based development platform | Tools | 0 |
| Coginov | Information interpretation and analysis service | Tools | 0 |
| Cogito Intelligence | Semantic intelligence service | Security | 0 |
| Cogix Ratings | Survey Creation Service | Utility | 0 |
| Cogmap | Org chart wiki | Wiki | 0 |
| COILS predict protein coiled-coil regions | Genetic structure prediction service | Science | 0 |
| Coinapult | Send bitcoins via SMS or e-mail | Financial | 0 |
| Coinbase | Bitcoin wallet and management service | Financial | 0 |
| Collective2 | Stock trading system automator | Financial | 0 |
| CollegiateLink | College student organization information service | Education | 0 |
| Collins Dictionary | Online dictionary | Dictionary | 0 |
| Collins Indicate | Statistical data modelling tool | Tools | 0 |
| Colorado HBGuest | Colorado water resources data service | Government | 0 |
| Colorado Marijuana Dispensaries | Marijuana dispensaries online communtiy | Other | 0 |
| Colorado Timberline | Order Placement and Customization Service | Shopping | 0 |
| ColoradoWaterSMS | Colorado surface water resource data service | Government | 0 |
| Colorfy It | Website color analysis tool | Internet | 0 |
| ColoRotate | Integrate 3D colors to your website or blog | Tools | 0 |
| Colr.org | Color and color scheme service | Other | 0 |
| Comic Vine | Comic book reference database | Other | 0 |
| Comindware | Work management software | Project Management | 0 |
| Comindwork | Online project collaboration service | Project Management | 0 |
| Comm100 | Hosted customer-service platform | Enterprise | 0 |
| commandlinefu.com | Command line retrieval service | Internet | 0 |
| CommerceV3 | Online storefront and payment service | Payment | 0 |
| Commission Factory | Affiliate network services | Advertising | 0 |
| CommonDataHub | Universal data standards repository | Reference | 0 |
| CommonTimes | Community based media distribution | Other | 0 |
| CommuniCart | eCommerce store creation services | Shopping | 0 |
| CommuniCart Customer Service | eCommerce store creation services | Shopping | 0 |
| Community Megaphone | Event listing service | Events | 0 |
| CommunityMX | Computer technology education and support service | Education | 0 |
| Commzgate Gateway | Online SMS text messaging service | Messaging | 0 |
| Comodo DNS | Domain name system management service | Internet | 0 |
| Company Data Trees Mobile Website Detection | B2B marketing analysis service | Utility | 0 |
| Company Data Trees Parked Domain | B2B marketing analysis service | Internet | 0 |
| Company Wizard Open Point | Electronic company formation services | Enterprise | 0 |
| CompareDownload | Online music download store | Music | 0 |
| Compass: Business Data | Business marketing database | Enterprise | 0 |
| Compassion International | Christian child advocacy organization | Tools | 0 |
| Compendium | Content marketing service | Media Management | 0 |
| CompletelyPrivateFiles | Data encryption service | Security | 0 |
| Complexity Intelligence Markup Cleaner | HTML markup cleaning service | Tools | 0 |
| Complexity Intelligence Part Of Speech Tagging | Semantic tagging webservice | Tools | 0 |
| Complexity Intelligence Spell Checker | Spelling correction and recommendation service | Reference | 0 |
| ComplexityIntelligence Named Entity Recognition | Text analysis and extraction tool | Tools | 0 |
| CompraFácil | Portuguese online payment service | Payment | 0 |
| Comprehensive Knowledge Archive Network | Community driven open knowledge database | Reference | 0 |
| CompuServe Newsgroups Public | News article retrieval service | News | 0 |
| ComputerSniffer | Web page ranking service | Internet | 0 |
| Con4ct Me | Spam-resistant short-term contact service | Email | 0 |
| Concord Fax | Online fax service | Fax | 0 |
| Concur | Travel and expense reporting service | Enterprise | 0 |
| Conductrics | Agent-based optimization services | Internet | 0 |
| Conduit | App publisher tools | Tools | 0 |
| Conferma Booking | UK travel booking and reconciliation service | Travel | 0 |
| Conferma CSP On-Demand | UK travel booking service | Travel | 0 |
| Confident CAPTCHA | Image-based captcha service | Security | 0 |
| Confident Image-Based Authentication | Image-based authentication service | Security | 0 |
| Connect2Field | Scheduling app | Office | 0 |
| Connection Software Ringtone | Ringtone upload service | Telephony | 0 |
| Connection Software SMS | Bulk SMS messaging service | Messaging | 0 |
| ConnectWise Suite | IT Solutions Service | Enterprise | 0 |
| ConnectYard | Social messaging service | Messaging | 0 |
| Connexions | Educational materials repository | Education | 0 |
| Connxys ReClaim | Electronic luggage tagging service | Travel | 0 |
| ConsensusPathDB | Biological interaction network integration service | Science | 0 |
| Conservation Scorer | Homologous protein sequence similarity calculator | Science | 0 |
| Console.fm | Electronica music streaming service | Music | 0 |
| Consumer Notebook | Product comparison site | Shopping | 0 |
| Contact Hero | CRM services | Enterprise | 0 |
| Contactology | Best Email Marketing API | Email | 0 |
| Contactually | Customer relationship management (CRM) service | Enterprise | 0 |
| Context Voice | Social conversation aggregator | Social | 0 |
| Continental Clothing | Wholesale clothing manufacturer | Shopping | 0 |
| Continuuity | Big data application builder | Backend | 0 |
| ContractPal | Electronic signature and document automation service | Enterprise | 0 |
| Convention on Biological Diversity | Biodiversity event information retrieval service | Events | 0 |
| Conversant | Social website features and services | Office | 0 |
| Conversions | Online calculator and measurment converter | Reference | 0 |
| ConvertAPI Web2Image | Webpage to Image Conversion Service | Tools | 0 |
| ConvertAPI Web2PDF | Webpage to PDF Conversion Service | Tools | 0 |
| ConvertAPI Word2PDF | Word document to PDF file conversion service | Tools | 0 |
| ConvertAPI Xps2PDF | Xps document to PDF file conversion service | Tools | 0 |
| Convey | Social media sentiment analysis service | Social | 0 |
| Convio | Non profit online fundraising | Other | 0 |
| Convo | Enterprise collaboration and social networking service | Project Management | 0 |
| Convore | Real-time group chat application | Chat | 0 |
| Cooliris | Media showcase widget | Widgets | 0 |
| CoolStreaming | Online streaming video service | Video | 0 |
| Coops N More | Internal address validation service | Tools | 0 |
| Copac | Search UK libraries | Search | 0 |
| Copac SALT recommender | Library resource recommendation service | Reference | 0 |
| CopasiWS | Biochemical system simulation service | Science | 0 |
| Copify | Online copywriting agency | Utility | 0 |
| CopperEgg | Server uptime monitoring | Internet | 0 |
| CoPub | Medical research text mining service | Science | 0 |
| Copy2Contact | Online contact entry and data parsing service | Internet | 0 |
| Copyscape | Content theft prevention service | Other | 0 |
| Copyscape Premium | Online plagarism search service | Search | 0 |
| Copyto | Clever bookmarking service | Bookmarks | 0 |
| coRank | Distributed user reviews service | Social | 0 |
| CORDC COAMPS Winds Model | U.S. coastal wind conditions information service | Weather | 0 |
| CORDC HF RADAR Maps | Vector mapping service | Mapping | 0 |
| CORDC HFRADAR Maps | High-frequency radar imaging service | Weather | 0 |
| CORDC Nautical Charts | Coastal Mapping and Research | Mapping | 0 |
| Cordurl | Geo coordinate translation service | Internet | 0 |
| CORE | Scholarly article repository | Education | 0 |
| CoreCommerce | eCommerce platform | Retail | 0 |
| Coret Genealogy Online | Dutch-language genealogy and family tree service | Search | 0 |
| Cornell eBird | Bird sighting and identification service | Science | 0 |
| CornerDrugstore | Pharmacy web information service | Internet | 0 |
| Corona Cloud | Application backend-as-a-service | Backend | 0 |
| Cortera | Business information and research data | Reference | 0 |
| Cortera Business Vitals | Basic company information web service | Reference | 0 |
| Cortera Credit Pulse | Credit check of businesses | Financial | 0 |
| Cortexica | Image recognition service | Photos | 0 |
| Cortica | Image to text service | Photos | 0 |
| Cosential | Contact tracking, sales lead, and proposal management system | Enterprise | 0 |
| Countries and Time Zones | Time zone information service | Reference | 0 |
| Coupa | e-procurement and expense management service | Enterprise | 0 |
| Coupz | Deal distribution service | Retail | 0 |
| CoveritLive | Live event publishing platform | Video | 0 |
| Cozimo | Online Image and Video Collaboration | Photos | 0 |
| cPath | Medical database lookup | Medical | 0 |
| CPE Monitor Service | Continuing pharmaceutical education certification database | Education | 0 |
| CPP Score Request | Personality testing score retrieval service | Other | 0 |
| cQuery | Online content parsing and extraction service | Feeds | 0 |
| CraftyClicks UK Postal Address Lookup | UK postcode lookup service | Reference | 0 |
| Craigslist Bulk Posting | Craigslist posting interface | Advertising | 0 |
| CrashPlan PRO | Online Backup Service | Storage | 0 |
| Crawlerinfo | Search bot and crawler information | Internet | 0 |
| Creately | Visual collaboration service | Social | 0 |
| Createsend | E-mail newsletter service | Email | 0 |
| CreateSurvey | Online survey creation service | Tools | 0 |
| Credit-Agricole | French banking application service | Financial | 0 |
| CreditAPI | Consumer credit data service | Financial | 0 |
| Crisply | Time tracking and project management service | Project Management | 0 |
| Criteo | Distributed recommendation service | Recommendations | 0 |
| Critsend | Email sending and receiving service | Email | 0 |
| Crittercism | Mobile application error monitoring service | Tools | 0 |
| Crocko | File hosting and sharing service | File Sharing | 0 |
| crocodoc | Online document collaboration service | Internet | 0 |
| CRONOS | Southeastern U.S. climate data service | Weather | 0 |
| Crop Ontology | Agricultural crop description service | Science | 0 |
| Crop PDF for Amazon Kindle | PDF cropping tool | Tools | 0 |
| Crossbrowser Testing | Website-browser compatibility testing | Tools | 0 |
| CrossRef DOI Resolver | Persistent identifier resolver | Reference | 0 |
| Crossrider | Cross platform extension creation service | Internet | 0 |
| crowd.fm | Event listing management platform | Events | 0 |
| crowdcrafting | Crowdsourced online task assistance service | Social | 0 |
| Crowdin | Collaborative translation service | Other | 0 |
| CrowdSavings | Access to shopping deals | Shopping | 0 |
| CrowdTilt | Crowd-funding platform | Payment | 0 |
| CrowdTwist | Customer loyalty platform | Advertising | 0 |
| Crum.bs | URL shortening service | Internet | 0 |
| Crummy Downhill | Weblog connection path discovery service | Blogging | 0 |
| Cruvee Partner Link | Wine database update system | Advertising | 0 |
| Cruvee Social | Social media search for wine industry | Search | 0 |
| Cruvee Wine Search | Wine industry search service | Search | 0 |
| Crypto::Stocks | Crpyto-Currency Crowdfunding Service | Financial | 0 |
| Crystal Semantics Content Categorization | Content categorization services | Advertising | 0 |
| CS Networks | Global SMS service | Messaging | 0 |
| CS50 | Harvard campus information | Education | 0 |
| CS50 HarvardEvents | Harvard Events Calendar | Events | 0 |
| CS50 HarvardMaps | Harvard Map Data | Mapping | 0 |
| CSA/NBII Biocomplexity Thesaurus | Biocomplexity Thesaurus search service | Science | 0 |
| CSC PairsDB | Pre-computed protein sequence alignment database | Science | 0 |
| CSISS/GMU Geospatial | Geospatial data processing and analysis services | Mapping | 0 |
| CSRHUB | Corporate Social Responsibility ratings database | Reference | 0 |
| CSS Mania | CSS showcases | Other | 0 |
| CTA Customer Alerts | Chicago transit tracking service | Transportation | 0 |
| CTA Train Tracker | Chicago transit tracking service | Transportation | 0 |
| cTuning | Computer system performance information | Internet | 0 |
| CU3ER | 3D image slider widget | Widgets | 0 |
| CUAHSI WaterOneFlow | Hydrologic data service | Science | 0 |
| CubeDrive | Cloud storage and application platform | Enterprise | 0 |
| CubeTree | Social Business Platform | Social | 0 |
| Cubiculus | Lego instruction reference service | Games | 0 |
| Cubify | 3D design and printing service | Tools | 0 |
| Cucupons | Guatemalan Coupon Service | Shopping | 0 |
| Cue | Distributed personal information search | Search | 0 |
| CultClip | Product video services | Video | 0 |
| Culture Grid | UK cultural institution collection information service | Search | 0 |
| Culture24 | Cultural publishing organization | Entertainment | 0 |
| Cumula | Web application building service | Tools | 0 |
| Cumulo Authorize | Authentication services | Security | 0 |
| Cupónica | Latin American social coupons marketplace | Shopping | 0 |
| Curbwise | Real estate data for Omaha area | Real Estate | 0 |
| CurdBee | Online billing software | Financial | 0 |
| Curebit | Customer sales referral service | Retail | 0 |
| Currency Rates | Currency rates for 115 countries | Financial | 0 |
| Curriculum U | K-12 Content Standards Database | Education | 0 |
| Cursor d.o.o. Fiscalization Service | Croatian fiscalization service | Financial | 0 |
| Custom Tattoo | Social network for tattoo enthusiasts | Social | 0 |
| Custom Toll Free Search | Toll free number search service | Telephony | 0 |
| CustomCD | CD-ROM burning and shipping service | Shipping | 0 |
| Cutcaster | Stock photography and images marketplace | Photos | 0 |
| cvent | Event communication and online survey service | Events | 0 |
| CX | Cloud storage and sharing service | Storage | 0 |
| cXense | IT and web development solutions | Internet | 0 |
| CyberArmy | Online knowledge sharing community | Social | 0 |
| Cyc | Semantic meaning service | Reference | 0 |
| CycleStreets | Cycling route planning tool | Sports | 0 |
| CyclingBuddy | Cycling social network | Social | 0 |
| CycloMedia GlobeSpotter | Local panoramic visualizations | Photos | 0 |
| Cynapse Localscope | Location based browsing application | Search | 0 |
| Cypress Golf | Golf reservations system | Sports | 0 |
| cz.cc Domain Search | Search cz.cc domain names | Internet | 0 |
| Czech Customs Administration TaricCZ | Czech import/export codes database | Government | 0 |
| Da Button Factory | Link button generator | Tools | 0 |
| DAAS.com Cloud | Data center management and automation service | Internet | 0 |
| Dabbleboard | Online whiteboard for drawing and team collaboration | Enterprise | 0 |
| DaCast | On demand video streaming service | Video | 0 |
| Daenet CurrencyServer | German exchange rate quote service | Financial | 0 |
| Daft | Irish real estate site | Real Estate | 0 |
| Daily-Proxies.com | Internet proxy service | Internet | 0 |
| DailyBooth | Social photo sharing service | Photos | 0 |
| DailyCred | Social sign in and authentication service | Security | 0 |
| DailyMed | Marketed drugs information service | Medical | 0 |
| Dailymile | The Social Workout Platform | Sports | 0 |
| DailyTvTorrents | Television show torrent listings | Entertainment | 0 |
| Daisy | Dynamic image platform | Photos | 0 |
| Daleeli Mobile | Saudi Arabian business directory | Search | 0 |
| Dalet | Media management service | Media Management | 0 |
| DalPay | Icelandic online payment service | Payment | 0 |
| Dalyo | Mobile application production platform | Internet | 0 |
| Danbooru | Adult art database and forum tool | Social | 0 |
| Danish Historical Atlas | Danish history map | Mapping | 0 |
| DaoPay | Mobile payments service | Shopping | 0 |
| DAR.fm | Digital audio recording service | Music | 0 |
| Dark Sky | Short term weather forecasting service | Weather | 0 |
| Dash | In-car programmable GPS navigation system | Tools | 0 |
| Dasient Anti-Malware | Web security service | Security | 0 |
| DassMonarch GroundWork | Network monitoring service | Internet | 0 |
| Data Explorers | Securities data tracking service | Financial | 0 |
| Data Greater Manchester | Manchester, England open government data | Government | 0 |
| Data Science Toolkit | Open Source tools for science | Reference | 0 |
| Data Translation Web Service (DTWS) | Space physics data service | Science | 0 |
| Data-Planet | Statistical data service | Reference | 0 |
| Data.CookCountyIL.Gov | Cook County, IL government data | Government | 0 |
| Data.ed.gov | Education grant data | Education | 0 |
| data.gov.au | Australia government data | Government | 0 |
| data.gov.sg | Singapore government data | Government | 0 |
| Data.Illinois.Gov | Illinois government data | Government | 0 |
| Data.Medicare.Gov | Medicare information and datasets | Medical | 0 |
| data.nasa.gov | NASA datasets | Science | 0 |
| Data.OK.gov | Oklahoma state government data | Government | 0 |
| Data.Oregon.Gov | Oregon state government data | Government | 0 |
| Data.Seattle.Gov | Seattle City Government data | Government | 0 |
| Data.Washington | Washington state data | Government | 0 |
| Data24-7 | SMS messaging / carrier / email / cnam lookup service | Email | 0 |
| Data8 Companies House | UK company search service | Reference | 0 |
| Data8 Country Detection | Country mapping and geolocation service | Other | 0 |
| Data8 Credit Card Validation | Credit card validation service | Payment | 0 |
| Data8 Email Validation | Email validation service | Email | 0 |
| Data8 Goneaway Identification Web Service | Check last known address | Tools | 0 |
| Data8 Live Number Testing | Telephone validation service | Telephony | 0 |
| Data8 Mobile Validation | Cell phone number validation service | Telephony | 0 |
| Data8 Movers Identification | Address checking and update service | Reference | 0 |
| Data8 Postcode Lookup | UK address lookup service | Search | 0 |
| Data8 Preference Services | Search marketing preference services | Telephony | 0 |
| Data8 Telephone Services | Integrate telephone services | Telephony | 0 |
| Data8 Unusable/Salacious Names | Identify unusable names | Tools | 0 |
| Database.com | Cloud Computing Database Service | Database | 0 |
| DataDog | IT data management | Tools | 0 |
| Datadotgc.ca | Canadian open government data | Government | 0 |
| DataFed WCS | Air quality data visualization service | Science | 0 |
| DataFeedFile.com | Comparison shopping service | Shopping | 0 |
| DataFeedFile.com XML | Comparison shopping service | Shopping | 0 |
| Datafiniti | Search engine for data | Search | 0 |
| DataGov.ru | Russian open government data | Government | 0 |
| Datahotell | Norway open government data | Government | 0 |
| DataKC | Seattle and King County open data service | Government | 0 |
| DataLock Online Backup | Data backup and recovery | Storage | 0 |
| Datalot | Marketing delivery and assessment platform | Advertising | 0 |
| Datameer | Data analysis and integration service | Enterprise | 0 |
| Datanest Fair-Play Alliance | Slovakia government data | Government | 0 |
| Datanibble | Quotes generator | Reference | 0 |
| Datanyze | Sales intelligence alerts | Enterprise | 0 |
| DataONE | Biological research data repository | Science | 0 |
| DataOne VIN decoder | Vehicle specification data service | Transportation | 0 |
| DataSift | Real-Time Social Data Mining | Social | 0 |
| dataTXT by SpazioDati | Data and text extraction and linking service | Tools | 0 |
| DataWeave | Aggregated public data | Internet | 0 |
| Datawitness | Electronic records archiving | Enterprise | 0 |
| Datownia | Data sharing platform | Database | 0 |
| Daum Cafe | Online community services | Social | 0 |
| Daum Calendar | Calendar services | Calendar | 0 |
| Daum Context Keyword | Contextual keyword extraction service | Tools | 0 |
| Daum Events | Movie and festival search service | Events | 0 |
| Daum Maps | Mapping services | Mapping | 0 |
| Daum Search | Search services | Search | 0 |
| Daum Shopping | Online shopping and product search service | Shopping | 0 |
| Daum Today | Micro blogging service | Blogging | 0 |
| Dave.TV | Video distribution network | Video | 0 |
| DAVID Bioinformatics | Bioinformatics and genetics database | Science | 0 |
| DaWanda | German Ecommerce Service | Shopping | 0 |
| Daxtra CVX | Resume parsing service | Job Search | 0 |
| DaycareSocial | Daycare directory | Social | 0 |
| DayDetails | On-this-date lookup service | Entertainment | 0 |
| Daymet | Daily weather and climatological summary service | Weather | 0 |
| Daywatch | Argentinean Daily Deals Service | Shopping | 0 |
| Dazzlepod IP Address Lookup | IP address lookup service | Internet | 0 |
| DB-IP | IP address location database | Internet | 0 |
| DbApi | Database management service | Database | 0 |
| DBpedia Spotlight | Semantic Text Annotation and Disambiguation | Reference | 0 |
| DC Location Verifier | DC place finder and address verification service | Government | 0 |
| DC Master Address Registry | District of Columbia GIS/mapping service | Mapping | 0 |
| DCMI Metadata Registry | Metadata management service | Reference | 0 |
| DDBC Authority Database | Authoritative Buddhist people, place, and event name service | Reference | 0 |
| DEA Filter | Spam and email filter | Security | 0 |
| DEA Number | U.S. DEA controlled substance validation service | Government | 0 |
| DealAngel | Hotel prices search engine | Travel | 0 |
| DealerRater | Automotive Dealer Review Service | Recommendations | 0 |
| Dealicio | Social deal marketing platform | Shopping | 0 |
| Dealinium | Local deals aggregation service | Shopping | 0 |
| DealMonkey | Daily Geographic Deal Service | Shopping | 0 |
| DealsGoRound | Online marketplace for daily deals | Shopping | 0 |
| Death By CAPTCHA | CAPTCHA Bypass Service | Tools | 0 |
| Debitsuccess | Billing service for Australia and New Zealand | Financial | 0 |
| deCarta MapSearch Engine | Local search services | Mapping | 0 |
| Decibel | In-depth music metadata | Music | 0 |
| Decibel CMS | Web based CMS | Enterprise | 0 |
| Decomp | DNA mass decomposition problem solver | Science | 0 |
| Deduktiv ebaas distance | UK postcodes service | Reference | 0 |
| Deepax SMS | SMS text messaging service | Messaging | 0 |
| Deepdyve | Scientific and medical journals | Reference | 0 |
| DeepFitness | Fitness and nutrition article service | Sports | 0 |
| Deepwater Oil Reporter | Crowdsourcing Oil Reporting App | Tools | 0 |
| Defensio | Blog and social site spam prevention services | Security | 0 |
| DegreeDays | Energy professional's weather information service | Weather | 0 |
| Dehood | Location based application design service | Mapping | 0 |
| Delcampe | Auction Website | Shopping | 0 |
| Delivergo | Digital publishing service | Internet | 0 |
| DeliveryWatch | European email delivery tracking service | Email | 0 |
| Delivra | Email marketing service | Email | 0 |
| Demandbase | B2B marketing service | Internet | 0 |
| Demandware Open Commerce | On demand eCommerce platform | Shopping | 0 |
| Democracy Game | Dutch Parliamentary System Simulation | Politics | 0 |
| DemocracyEngine | Donation Processing Service | Politics | 0 |
| Demyst.Data | Customer data analysis for financial services | Financial | 0 |
| Denmark Central Business Register (CVR) | Danish business information retrieval service | Government | 0 |
| Denmark Web service | Denmark address and municipality services | Mapping | 0 |
| DeployGate | Application deployment service | Tools | 0 |
| Derpibooru | My Little Pony photo sharing service | Photos | 0 |
| DesertHail Geodata Service | Geodata retrieval service | Mapping | 0 |
| Design Skins | Online store for custom device covers | Shopping | 0 |
| Desire2Learn | Online learning platform | Education | 0 |
| Desk.com | Customer support service | Enterprise | 0 |
| DeskAlerts | Web-based notification system | Messaging | 0 |
| Deskarma | Knowledge sharing platform | Enterprise | 0 |
| DeskMetrics | Software use analytics service | Utility | 0 |
| Desktopify | Create desktop widgets | Widgets | 0 |
| Despatch Bay Parcel Service | Shipping Information, Labels, and Tracking Service | Shipping | 0 |
| Despegar | Latin America travel site | Travel | 0 |
| Destakes | Portuguese news aggregator | News | 0 |
| Destinde | Travel information service | Travel | 0 |
| Detectlanguage.com | Language detection service | Tools | 0 |
| detectmyPhone | Smartphone setting dection service | Telephony | 0 |
| Deutsche Bahn Openbahn | German travel portal | Travel | 0 |
| Deutsche Telekom ClickandBuy | Payment interface service | Payment | 0 |
| Deutsche Telekom Cloud User Management | Cloud user management service | Internet | 0 |
| Deutsche Telekom Conference Call | Conference call service | Telephony | 0 |
| Deutsche Telekom IP Location | Mobile geolocation service | Telephony | 0 |
| Deutsche Telekom Scout24 | German marketplace service | Other | 0 |
| Deutsche Telekom Send SMS | short messaging service | Messaging | 0 |
| Deutsche Telekom Tropo | Voice Application Platform | Telephony | 0 |
| Deutsche Telekom Voice Call | Telephone network connection service | Telephony | 0 |
| Deutsche Telekom Voice Record | Voice message recording service | Telephony | 0 |
| Deutsche-Boerse VALUES | Financial Information Exchange Service | Financial | 0 |
| deutschland | German elected officials information service | Government | 0 |
| developergarden.com | Telephony web services for voice and SMS | Telephony | 0 |
| DeviceAtlas | Mobile device detection service | Utility | 0 |
| DeviceIdentifier | Mobile device detection service | Telephony | 0 |
| DeviceMagic | Electronic form creation service | Telephony | 0 |
| DevLeap Codice Fiscale | Italian citizen tax ID reference service | Government | 0 |
| Devot:ee Upload | ExpressionEngine community website | Tools | 0 |
| Dextro Image Recognition | Object recognition for images | Photos | 0 |
| DFM Market Summary Data | Dubai Financial Market information service | Financial | 0 |
| DFT.BA | Link (URL) shortening service | Internet | 0 |
| Diabetic Complications Consortium | Diabetes and health care information service | Science | 0 |
| Diablo 3 | Diablo data service | Games | 0 |
| Dialawg | Secure conversation platform | Social | 0 |
| Dialect Premailer | HTML email preparation service | Email | 0 |
| DIALIGN | Multiple protein and nucleic acid sequence alignment service | Science | 0 |
| DialMyCalls | Automatic calling and texting service | Telephony | 0 |
| Dialogue Bulk SMS | SMS messaging service | Messaging | 0 |
| Diavgeia | Greek open government information service | Government | 0 |
| Dictionary Definitions | Online dictionary | Reference | 0 |
| Dictionary.com | Dictionary lookup service | Reference | 0 |
| DIDWW | Phone and call forwarding service | Telephony | 0 |
| DIDx | Global DID exchange | Telephony | 0 |
| Diffbot Article | News article text extraction tool | Tools | 0 |
| Diffbot Follow | Web page changes subscription tool | Tools | 0 |
| Diffbot Frontpage | Web page content extraction tool | Tools | 0 |
| Diffbot Page Classifier | Webpage classification tool | Internet | 0 |
| Digest Report | Independent journalism website | News | 0 |
| Digibug | Photo and print marketplace | Photos | 0 |
| Digimi Gizmo | 3D Avatar Creation Service | Games | 0 |
| Digit-Eyes | UPC code database | Tools | 0 |
| Digital Monitoring Products | Security monitoring provider | Security | 0 |
| Digital Music Engine | Music catalog and download service | Music | 0 |
| Digital Public Library of America | National digital library | Reference | 0 |
| Digital River oneNetworkDirect | Affiliate marketing network | Advertising | 0 |
| DigitalClassicist G-Tool | Greek-to-Latin translation service | Reference | 0 |
| Digitaliser | Danish social networking site | Social | 0 |
| DigitalOcean | Cloud based virtual server and storage service | Storage | 0 |
| Digitalsmiths | Video search and recommendation service | Video | 0 |
| Digite | Lean and agile project management software | Project Management | 0 |
| Diglib | Online educational resource directory | Education | 0 |
| Dilogs | Scuba dive tracking services | Sports | 0 |
| Din.gy | URL shortening service | Utility | 0 |
| DineroMail | Latin American payment processing service | Payment | 0 |
| Dirble | Internet radio station directory | Music | 0 |
| Direct Leap Technologies | Campaign (phone, telemessaging) service | Telephony | 0 |
| Direct Mail Manager | Direct mail marketing service | Email | 0 |
| DirectGov syndication service | UK government content syndication service | Government | 0 |
| Directi | Domain registration and reselling | Internet | 0 |
| DirectIQ | Email marketing service | Email | 0 |
| DirectLink Media Network | URL shortening service | Internet | 0 |
| Directory Maximizer Directory Submissions | SEO Link Building Service | Search | 0 |
| DirectSmile | Image personalization service | Internet | 0 |
| Directtrack | Affiliate marketing software platform | Advertising | 0 |
| Dirigible | Cloud-based spreadsheet service | Office | 0 |
| Disc Golf Course Review | Disk Golf Course Review Service | Sports | 0 |
| Discfoo | Pricing and product promotions platform | Shopping | 0 |
| Discordian | Date converter from Gregorian to POEE calendar | Calendar | 0 |
| DiscountDomains | Domain Management Service | Internet | 0 |
| DiscoverEDINA Tagger | Image metadata service | Photos | 0 |
| DiscoverText | Social media analytics and research service | Database | 0 |
| DiscoveryGate | Chemical compound sourcing service | Science | 0 |
| Dispatch | Event automation service | Tools | 0 |
| Disposable E-Mail Address | Trash mail service | Email | 0 |
| Distimo | Application analytics and metrics platform | Tools | 0 |
| Distribute.IT | SMS messaging service | Messaging | 0 |
| Dive.io | Online SCUBA Diving Logbook | Social | 0 |
| Divide-and-Conquer Multiple Sequence Alignment | Amino acid, RNA, or DNA sequence alignment service | Science | 0 |
| Divinity Shopping Cart | E-Commerce Shopping Cart Tools | Shopping | 0 |
| DivShare | Media hosting service | Media Management | 0 |
| dkCOIN | Biomedical resource database | Medical | 0 |
| DKFZ SoapDB | Genetics and protein sequence databases | Science | 0 |
| DLESE | Digital Earth science library | Science | 0 |
| DNA Freight | Supply chain technology solutions | Enterprise | 0 |
| DNCIndia | Telemarketer Regulatory Compliance Service | Telephony | 0 |
| DNS Made Easy | Internet domain hosting service | Internet | 0 |
| Do.com | Collaborative project management and task application | Project Management | 0 |
| Docket Alarm | Litigation Tracking Service | Tools | 0 |
| DocLanding | File Storage and Management Service | Storage | 0 |
| DocMail | Send physical postal mail via a webservice/website | Utility | 0 |
| DocoDoco | IP geolocation service | Tools | 0 |
| DocRaptor | HTML to PDF/XLS Conversion Service | Office | 0 |
| doctape | Media file management & storage platform | Media Management | 0 |
| Doctor Dial | Medical office appointment reminder & message service | Medical | 0 |
| Doctor.com | Physician search service | Search | 0 |
| Doctoralia | Medical Doctors and Centers Database | Database | 0 |
| Doculicious | Service for web forms with PDF output | Utility | 0 |
| DocumentCloud | Upload and Share Documents | News | 0 |
| DocuVantage | Marketing content management platform | Storage | 0 |
| DocVerify | E-signature and secure file storage service | Enterprise | 0 |
| Docverter | Document converting service | Tools | 0 |
| DOE Green Energy | Conservation resource search service | Search | 0 |
| dogado Providerbox | German web hosting platform | Enterprise | 0 |
| Dojo Learning | Training eLearning services | Enterprise | 0 |
| DokDok | Email Attachment Management Service | Office | 0 |
| Dokiru | Social location based service | Social | 0 |
| Dolphin Dynamics | Travel industry transaction processing service | Travel | 0 |
| Domainbox | Reselling of domain names service | Internet | 0 |
| Domainr | Domain name search service | Internet | 0 |
| DomainsBot | Domain name suggestion service | Internet | 0 |
| Dominions Dice | Dice throwing service | Games | 0 |
| Domus | Estate Agent and Letting Management Service | Real Estate | 0 |
| Don Best Sports | Sports betting lines and information service | Sports | 0 |
| Done | Task Management Tool | PIM | 0 |
| Donor Tools | Donor management service | Financial | 0 |
| Dooblet | Alternatives discovery services | Search | 0 |
| Doodle | Online polling service | Tools | 0 |
| Doodle Republic Chatoon | Art-based chat service | Chat | 0 |
| DoppelMe | Avatar creation service | Tools | 0 |
| Doris | Personal productivity and task management | PIM | 0 |
| Dossia | Health information aggregation service | Medical | 0 |
| DoStuffMedia | Music festival data lookup service | Events | 0 |
| Dot TK TweaK | URL shotening and lengthening service | Internet | 0 |
| dotCloud | Web application management service | Backend | 0 |
| Dotgo | Web-based text messaging service | Messaging | 0 |
| dotMailer | Online marketing service integration | Advertising | 0 |
| dotMobi goMobi | Mobile website creation service | Internet | 0 |
| dotMobi Ready.mobi | Mobile site readiness testing service | Internet | 0 |
| dotNetHell Calcolo Codice Fiscale | Italian tax code reference service | Government | 0 |
| dotNetHell Contenuti | Italian web content service | Internet | 0 |
| dotnetpro.de News | German-language news service | News | 0 |
| DoubleClick | Online display ad service | Advertising | 0 |
| DoubleClick for Publishers | Advertising management service | Advertising | 0 |
| Dovico | Timesheet and time tracking software | Office | 0 |
| Doxument | Cloud based document conversion service | Tools | 0 |
| DoYouBuzz | Resume management platform | Job Search | 0 |
| Dozuki | Documentation software | Project Management | 0 |
| DragonPay | Philippine payment service without credit cards | Payment | 0 |
| Drawbridge | Mobile advertising platform | Advertising | 0 |
| Drchrono | Patient care platform | Medical | 0 |
| DRCOG | Denver area spatial data | Government | 0 |
| DreamHost | Web hosting service | Internet | 0 |
| DreamHost DreamObjects | Website and application cloud storage service | Storage | 0 |
| Dress Code Finder | Restaurant, bar, and club dress code directory | Entertainment | 0 |
| Drillster | Memorization and learning platform | Education | 0 |
| DriveCast | Web based media management | Media Management | 0 |
| Dropcash | Fundraising tools | Other | 0 |
| Dropproxy | Anonymous file-sharing service | File Sharing | 0 |
| Dropship.com | Product sales order fulfillment service | Shipping | 0 |
| Dropstr | Cloud management service | Other | 0 |
| Drugle | Pharmaceutical and medical search service | Medical | 0 |
| Drumbone | US political data aggregated from multiple sources | Government | 0 |
| DSC protein secondary structure prediction | Genetic structure prediction service | Science | 0 |
| Dubai Health Post Office | Health claim transaction information service | Medical | 0 |
| Dublin City Community Maps | Dublin amenities location service | Mapping | 0 |
| Dubset MixSCAN | Streaming music scanner | Music | 0 |
| Duck Duck Go | Internet search engine | Search | 0 |
| Ducksboard | Web metrics and analytics platform | Enterprise | 0 |
| Duedil | Due diligence service | Enterprise | 0 |
| Dukascopy FIX | Swiss foreign exchange quotation and trading service | Financial | 0 |
| Dun and Bradstreet WorldBase Marketing Plus | Business research services | Reference | 0 |
| Duo REST | Two-factor authentication | Security | 0 |
| Duo Verify | Web to mobile user verification | Security | 0 |
| DuoFactor | Web authentication service | Security | 0 |
| DuoShare Address Verification | US address verification service | Reference | 0 |
| DuoShare Job Submission | US address verification service | Shipping | 0 |
| Duplicated Genes Database | Database of co-located and duplicated genes | Science | 0 |
| Duracloud | Digital asset management service | Storage | 0 |
| durl.us | URL shortening service | Internet | 0 |
| DutyCalculator | Customs duty and import tax calculation service | Financial | 0 |
| DVDXML | DVD collection management service | Media Management | 0 |
| Dydacomp | Multichannel Order Management Service | Shopping | 0 |
| Dydra | Cloud-based RDF store | Database | 0 |
| Dynadot | Internet domain name lookup and registration services | Internet | 0 |
| DynaMed | Medical clinic reference | Medical | 0 |
| Dynamic Geometry | Mapping data service | Mapping | 0 |
| DynDNS | DNS update service | Internet | 0 |
| Dynmark | Cloud-based messaging service | Messaging | 0 |
| E*TRADE | Access to E*Trade services for applications | Financial | 0 |
| E-Cash | Secure Payment Processing Service | Payment | 0 |
| e-conomic | Online accounting software | Financial | 0 |
| e-Fungi | Fungi genomics database and analysis service | Science | 0 |
| E-goi | Multichannel marketing service | Advertising | 0 |
| e-SignLive | Electronic signature service | Security | 0 |
| E-xact | Online payment gateway provider | Payment | 0 |
| EAN Data | Product information service | Retail | 0 |
| Earth Observing System | Earth observation data clearinghouse | Science | 0 |
| EarthChem | Earth sciences data sharing service | Science | 0 |
| earthmine Direct Data | Programmatic access to street-level imagery | Mapping | 0 |
| earthmine Flash Viewer | Street-level imagery services | Mapping | 0 |
| EarthScope Data Portal | North American earth sciences data service | Science | 0 |
| EASI | University of Toronto student records | Education | 0 |
| EAST Search Engine | Japanese address and ZIP code search service | Search | 0 |
| EAST Web Dictionary Search | Japanese dictionary service | Dictionary | 0 |
| Easy Antispam | Email spam services | Email | 0 |
| Easy Insight | SaaS based business intelligence service | Enterprise | 0 |
| Easy Projects | Web-based project management tool | Project Management | 0 |
| Easy-forex | Forex trading platform | Financial | 0 |
| EasyAch Paycenter | Payment Processing Service | Payment | 0 |
| EasyBib | Bibliography citation service | Bookmarks | 0 |
| EasyEthical | Ethical consumer guide | Shopping | 0 |
| EasyImg | Online image and graphics editing service | Tools | 0 |
| EasyLink WebServices | Business messaging and transaction services | Enterprise | 0 |
| EasyPost | Postage and shipping service | Shipping | 0 |
| Easyrec | Recommendation software | Recommendations | 0 |
| EasyToBook | Hotel Search and Booking Service | Travel | 0 |
| Easywallet | Web-based bitcoin wallet | Financial | 0 |
| Eaupen | Free drinking water location service for Paris | Travel | 0 |
| EB-eye Search | Lucene-based search services | Search | 0 |
| eBay Best Match | eBay search ranking analysis service | Search | 0 |
| eBay Client Alerts | eBay alerts and notifications service | Shopping | 0 |
| eBay Feedback | eBay Seller Ratings monitoring service | Other | 0 |
| eBay Korea Auction Suggest | Korean auction service | Auctions | 0 |
| eBay Large Merchant Services | Transcation processing services | Retail | 0 |
| eBay Platform Notifications | eBay notification management service | Messaging | 0 |
| eBay Product Services | eBay product compatibility service | Retail | 0 |
| eBay Resolution Case Management | eBay transaction complaint resolution management service | Other | 0 |
| eBay Trading | eBay trading service | Shopping | 0 |
| EBI | Bioinformatics research database | Medical | 0 |
| EBI CENSOR | Biological sequence repetition masking service | Science | 0 |
| EBI CiteXplore | Scientific publication and metadata retrieval | Reference | 0 |
| EBI ClustalW2 | Global multiple sequence alignment service | Science | 0 |
| EBI ClustalW2 Phylogeny | Phylogenetic tree creation service | Science | 0 |
| EBI DaliLite | Pairwise protein structure comparison service | Science | 0 |
| EBI InterProScan | Protein signature recognition service | Science | 0 |
| EBI Kalign | Multiple sequence alignment service | Science | 0 |
| EBI Lalign | Local pairwise sequence alignment service | Science | 0 |
| EBI MAFFT | Multiple sequence alignment service | Science | 0 |
| EBI MUSCLE | Multiple sequence alignment service | Science | 0 |
| EBI MView | Bioinformatics data reformatting service | Science | 0 |
| EBI NCBI BLAST | Database search for biological sequences similarities | Science | 0 |
| EBI Phobius | Protein topology and signal peptide prediction service | Science | 0 |
| EBI PRANK | Probabilistic multiple alignment service | Science | 0 |
| EBI PSI-BLAST | Database search for related protein sequences | Science | 0 |
| EBI SBO | Ontology for computational modeling of systems biology | Science | 0 |
| EBI T-Coffee | Multiple sequence alignment service | Science | 0 |
| EBI Whatizit | Molecular biology term identification and reference linking | Tools | 0 |
| EBI WSDbfetch | Biological database search service | Science | 0 |
| EBI WU-BLAST | Database search for biological sequence similarities | Science | 0 |
| eBibleicious | Bible lookup service | Reference | 0 |
| Ebiwrite | Translation writing tool | Tools | 0 |
| Ebook Glue | Ebook creation service | Media Management | 0 |
| ebookers | Travel Booking Service | Travel | 0 |
| eBridge Connections | Cloud-based accounting integration with EDI, ecommerce, CRM & SCM | Enterprise | 0 |
| EBSCO Host | Biomedical reference and research service | Search | 0 |
| EC Navi BuzzURL | Bookmarking service | Bookmarks | 0 |
| Ecato Shopping | Site price comparison service | Shopping | 0 |
| Echo StreamServer | Real time content aggregation platform | Internet | 0 |
| Eclipse MC | Eclipse Bitcoin Mining Service | Financial | 0 |
| eco:Speed | Fuel-conserving mapping service | Mapping | 0 |
| eCoComa Convert | Various text conversion services | Tools | 0 |
| eCoComa Domain | Domain name information service | Internet | 0 |
| eCoComa Email | E-mail receiving and validation services | Email | 0 |
| eCoComa Geo | Address-based geolocation services | Mapping | 0 |
| eCoComa Marketing | Online marketing service | Advertising | 0 |
| eCoComa RSS | Custom RSS feed creation service | Feeds | 0 |
| eCoComa Shipping | Shipping rate information service | Shipping | 0 |
| eCoComa Video | Online video search service | Entertainment | 0 |
| ecofreek | Search engine for free or swap items | Search | 0 |
| Ecolabel Index | Ecolabel Database Tools | Reference | 0 |
| Ecometrica Our Impacts | Sustainability management tools | Tools | 0 |
| ecommstats | Web analytics | Internet | 0 |
| Econz Eservice | Job Management and Wireless Dispatch service | Enterprise | 0 |
| Econz Timecard | Mobile timesheet integration service | Project Management | 0 |
| Ecordia | Content optimization and text analysis service | Tools | 0 |
| EcoSystemData | Biological system data warehouse service | Science | 0 |
| eCourier | UK delivery services | Shipping | 0 |
| Ecwid Product | Ecwid Store Information Lookup | Shopping | 0 |
| Edamam Nutrition | Nutrition analysis for any free text food recipe | Food | 0 |
| EdgeCast CDN | Cloud hosting and storage service | Storage | 0 |
| Edicy Site | Multilingual website creation service | Internet | 0 |
| EDINA Digimap OpenStream | U.K. web map service | Mapping | 0 |
| Edinburgh Festival | Scottish festival events information service | Events | 0 |
| Ediscio | Online Flashcard Learning Service | Education | 0 |
| EdisonAve Geocoder | Forward and Reverse Geocoding Service | Mapping | 0 |
| EDIT CDM Library | Taxonomic information database | Science | 0 |
| EditMe | Collaborative website and wiki service | Wiki | 0 |
| Editz | Crowd-sourced copy editing service | Internet | 0 |
| Edmodo | Social network and collaborative platform for educators | Education | 0 |
| Edmunds.com Dealer | Vehicle dealer information | Database | 0 |
| Edmunds.com Inventory | Specific automobile information via VIN | Reference | 0 |
| Edoceo | Assorted reference and conversion tools | Tools | 0 |
| edocr | Online document collaboration, storage, and publishing | Enterprise | 0 |
| Edtuit GeoPerks | Discount and reward display service | Shopping | 0 |
| Edupedia | Education wiki | Education | 0 |
| eduroam | European internet resource management service | Internet | 0 |
| eduroam URN | Persistent uniform resource identifier service | Education | 0 |
| eFax | Fax to email service | Fax | 0 |
| eFreightline | Truckload shipping rate quotation service | Shipping | 0 |
| Eftel | ISP connections management service | Internet | 0 |
| Egnyte | Cloud filesharing service | Storage | 0 |
| eHabitat WPS | Environmental change prediction service | Science | 0 |
| eHealth Technology | Health insurance exchange service | Financial | 0 |
| Ei3 | Machine Production Data Source | Enterprise | 0 |
| EIDR | Unique media identifier service | Media Management | 0 |
| Einztein | Search API for Einztein Social Learning Network | Social | 0 |
| eKim eKart Fraud Buster | Vietnamese payment and fraud detection service | Payment | 0 |
| EklaBlog | French blogging service | Blogging | 0 |
| eKlima | Norwegian weather and climate data service | Weather | 0 |
| el Guille Conversor | Spanish temperature conversion service | Tools | 0 |
| El Nuevo Dia APEX | Online newspaper | News | 0 |
| Elastic Email | Cloud email delivery service | Email | 0 |
| Elastic Server Manager | Virtual hosting services | Internet | 0 |
| ElasticHosts Cloud Computing | Cloud server hosting service | Internet | 0 |
| ElasticPath | eCommerce platform | Enterprise | 0 |
| Electioneering | Comparative information on public office candidates | Government | 0 |
| ElectionsOnline Evote | Online balloting service | Tools | 0 |
| Electronic Merchant Systems | eCommerce Services | Payment | 0 |
| Elektronik Borsa Sistemi | Online Turkish gold exchange service | Financial | 0 |
| Elementool | Bug tracking tools | Tools | 0 |
| Elev.at | Text and Excel conversion to XML tool | Tools | 0 |
| Elgg | Social networking service | Social | 0 |
| ELGIN Roadworks | U.K. road construction information service | Transportation | 0 |
| eLife | Biological sciences journal access service | Science | 0 |
| Eligible Health Insurance | Health insurance information lookup service | Medical | 0 |
| eLink | CRM software | Enterprise | 0 |
| Elite | Legal practice management service | Office | 0 |
| ELMdb | Protein functional site database | Science | 0 |
| eLobbyist LegiScan | U.S. national and local legislation tracking service | Government | 0 |
| Elophant | League of Legends game information service | Games | 0 |
| Eloqua | Automated marketing service | Enterprise | 0 |
| Elsevier Article | Scientific journals and articles search service | Reference | 0 |
| Elsevier Linked Data Repository | Semantic metadata service | Reference | 0 |
| Email Address Validator | Email address validation service | Email | 0 |
| Email Center Pro | Email management services for customer service teams | Email | 0 |
| Email Checker | Email address validation service | Email | 0 |
| Email Data Source | Email marketing campaign management | Email | 0 |
| Email Pie | Email address validation service | Email | 0 |
| Email Yak | Web based email API | Email | 0 |
| Email2HTTP | Email delivery services | Email | 0 |
| EmailBrain | Email marketing campaign management service | Email | 0 |
| EmailDirect | Email marketing campaign management service | Email | 0 |
| Emailloop | Email marketing service | Email | 0 |
| EmailManager | Email marketing and CRM synchronization system | Email | 0 |
| EmailOnAcid | Email Testing Service | Email | 0 |
| emailR | Email marketing service | Email | 0 |
| EmailValidate | Email address validation service | Email | 0 |
| Emailvision Campaign Commander | Email marketing service | Email | 0 |
| eMarketeer | Marketing campaign tracking service | Email | 0 |
| Embarke | Developer tools for social communications | Backend | 0 |
| EMBL Structure Filter | Protein regulatory sequence accessibility analysis | Science | 0 |
| EMBOSS Backtranambig | Protein to nucleic acid back-translation service | Science | 0 |
| EMBOSS Backtranseq | Protein to nucleic acid back-translation service | Science | 0 |
| EMBOSS Matcher | Local pairwise sequence alignment service | Science | 0 |
| EMBOSS Needle | Global pairwise sequence alignment service | Science | 0 |
| EMBOSS Sixpack | DNA visualization tool | Science | 0 |
| EMBOSS Stretcher | Global pairwise sequence alignment service | Science | 0 |
| EMBOSS Transeq | Nucleic acid to peptide translation service | Science | 0 |
| EMBOSS Water | Local pairwise sequence alignment service | Science | 0 |
| Emergent One | API creation and management service | Backend | 0 |
| Emma | Email marketing service | Email | 0 |
| Emoome | Emotional profiling tool | Tools | 0 |
| Emotional Cities | Art Project that Collects Data from an Emotional State Survey | Social | 0 |
| EMP Climate | Solar energy information service | Weather | 0 |
| Empirasign | Security markets data and trading model provider | Financial | 0 |
| Empire 2.0 Tech Talk | Government technology discussion platform | Government | 0 |
| Empire Avenue | Virtual Investment Service | Financial | 0 |
| Employease | On-demand human resource management | Enterprise | 0 |
| Employrium | Job posting management tool | Job Search | 0 |
| EMS Master Calendar | Event and organizational calendar service | Events | 0 |
| Emulab | Network testbed service | Science | 0 |
| eMusic | Music and Audiobook Search Service | Music | 0 |
| EnClout Content | Content Extract for domains | Internet | 0 |
| EnClout DMOZ | Dmoz category for Domains | Internet | 0 |
| EnClout DNS | DNS for domains | Internet | 0 |
| EnClout Stemmer | Word stemming service | Tools | 0 |
| EnClout Term Analysis | Word lemmatization service | Tools | 0 |
| EnClout URL Parser | IDN URL parsing service | Internet | 0 |
| EnClout Whois | Whois for Domains | Utility | 0 |
| EncoderCloud | Video file encoding service | Video | 0 |
| Encoding.com | Video encoding service | Video | 0 |
| Encyclopedia of Life | Biology Encyclopedia | Reference | 0 |
| Endatio | Financial Audit Service | Financial | 0 |
| Endpoint Exchange | Image Exchange Network Service | Financial | 0 |
| EnergyIQ | Building energy efficiency benchmarking service | Real Estate | 0 |
| EnergyStar ABS | Energy management and conservation service | Government | 0 |
| EnergyStar Third-Party Certification | Energy efficiency certification processing service | Government | 0 |
| Engagd | Attention data management platform | Other | 0 |
| Enginio | Application backend service | Backend | 0 |
| Engrade | Online Gradebook and Classroom Management service | Education | 0 |
| Eniro | Nordic business search directory | Search | 0 |
| Enliven Software Fidesic | Online payment service for accounting applications | Payment | 0 |
| Enole | Mobile Authentication Service | Security | 0 |
| eNom | Internet domain reseller | Internet | 0 |
| Enomalism | Elastic computing platform | Internet | 0 |
| EnrichNet | Gene and protein analysis service | Science | 0 |
| Enrycher | Text analysis and keyword generation service | Reference | 0 |
| Ensembl | Multi-species genomic information databases | Science | 0 |
| Enstore | Custom Enstore Client Creation | Shopping | 0 |
| enstratius | Cloud infrastructure management service | Backend | 0 |
| Enstratus | Cloud infrastructure management service | Enterprise | 0 |
| Entellium | CRM services | Enterprise | 0 |
| Enthuse | Fan loyalty and reward service | Advertising | 0 |
| Entireweb | Web search service | Search | 0 |
| Entranced.FM | Internet radio station | Music | 0 |
| entreprise-facile | Create entreprise-facile automations and mashups | Enterprise | 0 |
| Envato | Digital goods marketplace | Shopping | 0 |
| Environment Canterbury GIS | New Zealand regional geographic information service | Mapping | 0 |
| Environmental Life Cycle Impact Assessment | Renewal energy impact estimation service | Weather | 0 |
| Envolve | Web chat application | Chat | 0 |
| EnvoyRelate | Online donation tracking and reporting service | Financial | 0 |
| EODData | Stock market historical data | Financial | 0 |
| eOddsMaker | Sports gambling service | Sports | 0 |
| EPA Envirofacts | Environmental database | Science | 0 |
| EPA Environmental Dataset Gateway | Environmental data service | Science | 0 |
| EPA Project Catalog | EPA project information service | Science | 0 |
| EPA Station | Find EPA monitoring stations by geographic area | Science | 0 |
| ePages | Online business management service | Enterprise | 0 |
| Epidemic Marketplace | Research data sharing and collaboration service | Science | 0 |
| Epistlee | Blogging service | Blogging | 0 |
| Epistly | Online letter writing service | Tools | 0 |
| Epom | Ad campaign management platform | Advertising | 0 |
| ePostcode | Delivery address search and information service | Shipping | 0 |
| Eppraisal | Real estate price appraisal service | Real Estate | 0 |
| ERCOT MarkeTrak | Texas energy market information service | Database | 0 |
| eRepublik | Strategy game | Games | 0 |
| ErgDB | Indoor rower workout generator | Sports | 0 |
| Ericsson 3D Landscape | 3D Landscape Tool | Mapping | 0 |
| Ericsson Async Voice | Online Voice/Text Chat/Conversation Service | Chat | 0 |
| Ericsson Captcha | Security and Advertisement Service | Security | 0 |
| Ericsson Cluster Constructor | Service for Finding Data Clusters in Submitted Datasets | Tools | 0 |
| Ericsson Converting Media | Media Conversion Tool | Video | 0 |
| Ericsson Event Source | Tool for Recieving Push Notifications/Events from a Server | Internet | 0 |
| Ericsson Mobile Identification | Mobile identification service | Telephony | 0 |
| Ericsson Mobile Java Communication Framework | Mobile communication service | Messaging | 0 |
| Ericsson Mobile Location | Mobile location tracking service | Telephony | 0 |
| Ericsson Mobile Maps | Mobile mapping service | Mapping | 0 |
| Ericsson Mobile Network Lookup | Network lookup service | Telephony | 0 |
| Ericsson SMS Send and Receive | SMS messaging service | Messaging | 0 |
| Ericsson Streaming Media | Streaming Media Status Tools | Video | 0 |
| Ericsson Text to Speech | Text to Speech Convering Service | Tools | 0 |
| Ericsson Web Connectivity | Webpage/Server Connection Tool | Tools | 0 |
| Ericsson Web Device Connectivity | Web Connection for UPnP/DLNA Devices | Tools | 0 |
| Ericsson Web Location | Web-based Positioning Service | Telephony | 0 |
| Ericsson Web Maps | Online mapping service | Mapping | 0 |
| ERMAHGERD Translator | Meme translation service | Entertainment | 0 |
| Erply Inventory | Retail and ecommerce inventory and sales service | Retail | 0 |
| Errorception | JavaScript error tracking service | Internet | 0 |
| Errplane | Application monitoring & metric service | Utility | 0 |
| ERS/USDA Per Capita Food Availability Data | Food availability data | Food | 0 |
| Escapia Vacation Rental Network | Vacation rental booking | Travel | 0 |
| Escapio | Hotel selection service | Travel | 0 |
| Esendex | Esendex Business SMS Text Messaging Service | Messaging | 0 |
| Esendex Spain SMS | Text messaging service | Telephony | 0 |
| ESHA Nutrition Database | Food product nutrition information service | Food | 0 |
| eShopWorld | International e-commerce shipping service | Shipping | 0 |
| eSignal Market Data | Stock market data service | Financial | 0 |
| ESMA MiFID | European financial and trading information | Financial | 0 |
| ESnet OSCARS | Network traffic management service | Utility | 0 |
| ESPN ALPS | Open Scoring Service | Sports | 0 |
| Esponce | Mobile marketing and QR code service | Advertising | 0 |
| Esri Community Analyst | Application Building Service | Mapping | 0 |
| Essent CompassConnector | E-commerce catalog and transaction service | Catalog | 0 |
| Estate++ | Virtual safe deposit box | Storage | 0 |
| Estes Express | Parcel and LTL shipping service | Shipping | 0 |
| Estimize | Financial estimate platform | Financial | 0 |
| eStore Advanced | Online shopping cart software | Payment | 0 |
| eTapestry | Online fundraising platform | Financial | 0 |
| EU Latitude | Location Information Search Service | Search | 0 |
| EUMETSAT Product Navigator | Satellite data product search service | Science | 0 |
| Eurex VALUES | Financial Exchange Service | Financial | 0 |
| Euro Bill Tracker | Currency Tracking Service | Social | 0 |
| Euro Web | European web hosting company | Internet | 0 |
| Euro.message | Interactive Marketing Management Service | Project Management | 0 |
| Euro42 Euro to Gulden | Currency conversion service for Euros and Guldens | Tools | 0 |
| EuroCV | Online Curriculum Vitae service | Job Search | 0 |
| European Alien Species Information Network | Invasive species listing service | Science | 0 |
| European Parking Association Photo Gallery | EPA event photo album information service | Photos | 0 |
| European Union Legislation | European Union legislative data service | Government | 0 |
| European VAT Number Validation | European Union value added tax number validation | Tools | 0 |
| Europeana OpenSearch | European museum collection metadata | Education | 0 |
| EuropeanNIC | Domain registration and hosting service | Internet | 0 |
| Eurotax RepairEstimate | Car repair cost estimate service | Transportation | 0 |
| EurotaxGlass Valuation | Car value calculation service | Transportation | 0 |
| Eurotech Everyware Cloud | Cloud software platform | Enterprise | 0 |
| Eventarc | Online event registration and ticketing service | Events | 0 |
| Eventfinda | New Zealand events service | Events | 0 |
| Eventfinder | New Zealand events calendar | Events | 0 |
| Eventification | Social Event Site | Events | 0 |
| Eventility | Event organization and promotion service | Events | 0 |
| Eventlister.com | Craft Event Listing and Search Service | Events | 0 |
| Evently | Event Aggregation Service | Events | 0 |
| EventPoint | Event planning and publicizing services | Events | 0 |
| EventSockets | Cloud based push service | Tools | 0 |
| Everbread Haystack mini | Online travel comparison service | Travel | 0 |
| EveryBlock | Hyperlocal data and news aggregator | News | 0 |
| Everyman Theatre Autocomplete | Performance title autocomplete service | Entertainment | 0 |
| Everyplay | Game interaction service | Games | 0 |
| EveryScape | Visual, digital tour service | Mapping | 0 |
| Everytime | Music and video clip saving and sharing service | Bookmarks | 0 |
| Evi | Internet Answer Service | Answers | 0 |
| Eviscape | Information discovery network | Social | 0 |
| EvoIO Phylotastic/TNRS | Biological taxonomic name resolution service | Science | 0 |
| Evrythng | Online profiles for physical objects | Database | 0 |
| EVS iDrive | Secure cloud based backup service | Storage | 0 |
| eWAY | Online payments gateway | Payment | 0 |
| eWebvision Youranium | SMS text messaging service | Messaging | 0 |
| EXACTME! | Job recruitment search engine | Job Search | 0 |
| eXactmobile | Enterprise SMS service | Messaging | 0 |
| ExactTarget | Email delivery services | Email | 0 |
| Examinare | Online survey service | Answers | 0 |
| Examineurl Online Analysis | Website analytics and Intenet tools service | Tools | 0 |
| Exceptional | Web application bug tracking service | Tools | 0 |
| Exchange Network NAAS | Authentication for the Environmental Information Exchange Network | Security | 0 |
| Exchangery Trading | Commodities exchange resource service and platform | Financial | 0 |
| Excluded Parties List System | List of entities ineligible for Federal contracts | Government | 0 |
| EXIF.in | Image EXIF data service | Photos | 0 |
| Exigo CRM | Customer relationship management service | Enterprise | 0 |
| Exosite | Cloud storage platform | Internet | 0 |
| Expensify Web Services | Expense Report Management Service | Financial | 0 |
| Experian CheetahMail | Email marketing campaign management service | Email | 0 |
| Experian QAS Address Validation | Street address validation service | Shipping | 0 |
| Expert Texting | Global bulk SMS service | Messaging | 0 |
| Expert Web Worx | SMS messaging service | Messaging | 0 |
| Exploring Surrey's past | Surrey County historical resource | Reference | 0 |
| ExposureManager | Photograph sales service | Photos | 0 |
| Express Text | SMS marketing service | Messaging | 0 |
| ExtensionFM | Music discovery tool | Music | 0 |
| Extentia | Travel booking and management service | Travel | 0 |
| Extraterrestrial Embassy | Extraterrestrial sighting reporting service | Other | 0 |
| Extravaganza City | Group buying service | Shopping | 0 |
| Eyowo Payment Confirmation | Electronic payment service | Payment | 0 |
| Ez Texting | SMS Text Messaging Services | Messaging | 0 |
| EZComet | Realtime message pushing technology | Messaging | 0 |
| ezetop | Mobile phone top up service | Telephony | 0 |
| EzineArticles | eZine article database | Other | 0 |
| EZX iServer | FIX Routing and Normalization Service | Financial | 0 |
| F My Life | Social blogging service | Blogging | 0 |
| F'n Lame URL Shortener | URL shortening tool | Internet | 0 |
| FAA Airport Service | Airport activity and weather information service | Transportation | 0 |
| FAA Obstruction Evaluation | Aviation obstruction information service | Transportation | 0 |
| Faascape | API marketplace | Internet | 0 |
| Fabasoft Folio | Cloud based enterprise software | Enterprise | 0 |
| Fabersys | Internal employee work management service | Office | 0 |
| Fabulous | Domain revenue generation service | Advertising | 0 |
| FaceCash | Mobile payment processing service | Payment | 0 |
| FaceDetection | Image recognition service | Photos | 0 |
| Facetly | E-commerce product search service | Search | 0 |
| Factery | Search engine and meaning extraction service | Search | 0 |
| Factolex | Fact/Lexicon Database Service | Database | 0 |
| Factual Geopulse Context | Demographic and Commercial Contextualization Service | Mapping | 0 |
| Factual Places | Open Data for sharing and reference tools | Mapping | 0 |
| Factura Directa | Bill Management Service | Office | 0 |
| Facturar en Línea Remote Connection | Mexican electronic billing service | Payment | 0 |
| FairLuck | Random number generator for casino software | Games | 0 |
| Fake Call | Telephone call service | Telephony | 0 |
| Fake Name Generator | Name generation service | Tools | 0 |
| FakeCreditCardGenerator | Credit Card Number Generator | Security | 0 |
| Family Echo Family Tree | Family tree visualization for genealogy | Other | 0 |
| Family Photoloom | Family tree and photo service | Other | 0 |
| Family Tree Maker | Genealogy search service | Search | 0 |
| FamilySearch | Genealogical search and family tree service | Other | 0 |
| fanart.tv Music | Music fan art repository | Music | 0 |
| fanart.tv TV | TV and movie fan art repository | Entertainment | 0 |
| Fanatix | Gamified social sports TV | Sports | 0 |
| FancyBox | Image Display Service | Photos | 0 |
| FanFeedr Image | Sports photos service | Photos | 0 |
| Fanggle EventBreeze | Event Management Service | Project Management | 0 |
| Fanggle FundJoy | Fund Raising Service | Enterprise | 0 |
| Fanggle QRazor | Marketing and Advertising Service | Advertising | 0 |
| Fanggle Qwoosh/Spreevo | Location-Based Coupon Creation and Delivery Service | Advertising | 0 |
| FanggleCast | Message Sending and Tracking Service | Messaging | 0 |
| FAO Fisheries and Aquaculture Fact Sheets | Fisheries and aquaculture data service | Reference | 0 |
| FAOdata | Worldwide food and agriculture data | Database | 0 |
| Farelogix | Airline fare aggregator service | Travel | 0 |
| Fast2Host | UK web hosting and storage service | Storage | 0 |
| FastA protein similarity search | Genetic structure comparison service | Science | 0 |
| fastDove | SMS Management Service | Telephony | 0 |
| Fasthosts Reseller Hosting | Online hosting service | Internet | 0 |
| Fastly | CDN platform | Utility | 0 |
| FatFractal | Application backend service | Backend | 0 |
| Favatar | Favicon retrieval service | Media Search | 0 |
| Faves.com | Social Bookmarking | Bookmarks | 0 |
| Fax Desk | Online faxing service | Fax | 0 |
| FAXAGE | Internet based fax service | Fax | 0 |
| FaxLogic | Cloud-based Fax Service | Fax | 0 |
| FCC Form 499 Filer Database | Common carrier reporting information service | Government | 0 |
| FeaturePics | Stock photography provider | Photos | 0 |
| FedBizOpps | U.S. government procurement and purchasing service | Government | 0 |
| Federal Infrastructure Projects | Federal project dashboard | Government | 0 |
| Federal Procurement Data System | U.S. government purchasing and procurement information service | Government | 0 |
| FederalRegister.gov | Open source government data | Government | 0 |
| Fee Fighters Samurai | Payments gateway | Payment | 0 |
| FeedbackRoad | Customer feedback and idea management service | Tools | 0 |
| FeedBlitz | Blogs by email service | Blogging | 0 |
| Feedbooks | Mobile book and RSS services | Telephony | 0 |
| Feedcache | Feed caching service | Music | 0 |
| FeedFlow | Feed monitoring service | Other | 0 |
| FeedHenry | Mobile application backend service | Backend | 0 |
| Feedoo Note | Chinese international finance site messaging service | Messaging | 0 |
| Feedoor | Feed aggregator services | Feeds | 0 |
| FeedsAPI | RSS feeds service | Feeds | 0 |
| Feedzz | RSS feed management and filtering service | Feeds | 0 |
| Feest.je | Netherlands-based location sharing service | Social | 0 |
| Feinsearch | U.S. employer identification number service | Search | 0 |
| Fellowship One | Church database service | Other | 0 |
| Fenopy | Torrent sharing service | File Sharing | 0 |
| Festivalslab | Event information service | Events | 0 |
| FetchApp | Digital goods online marketplace service | Shopping | 0 |
| fetchflow | Online invoicing and payment service | Enterprise | 0 |
| FFindr | Frisbee Finding Service | Sports | 0 |
| FHIR | Healthcare data exchange standard | Medical | 0 |
| Fhoster Livebase | Cloud management service | Storage | 0 |
| Fiabee | Cloud synchronization and sharing platform | Enterprise | 0 |
| Field Force Manager | Mobile workforce tracking and management service | Enterprise | 0 |
| Field Nation | Field technician provider | Job Search | 0 |
| Fierce Payroll | Payroll Service | Financial | 0 |
| Fiesta | Group email and mailing list service | Email | 0 |
| Fietstas | Document and text processing service | Reference | 0 |
| FiftyOne | Global transactions and financial logistics | Shipping | 0 |
| figo connect | Personal finances management service | Financial | 0 |
| figshare | Research sharing service | Education | 0 |
| File MD5 | MD5 file hash service | Utility | 0 |
| Fileboard | Online presentation application | Office | 0 |
| FileCatalyst | Accelerated file transfer service | File Sharing | 0 |
| FileCopter | File Hosting And Monetization Service | File Sharing | 0 |
| FilesFrom | File delivery service | File Sharing | 0 |
| Fileslap | File Sharing Service | File Sharing | 0 |
| FileSocial | Twitter file sharing service | File Sharing | 0 |
| FileStorm | File Hosting Service | Storage | 0 |
| FileTrek | Business file sharing service | File Sharing | 0 |
| FillAnyPDF | Information aggregation for PDF forms | Tools | 0 |
| Fillbug | Query by example service | Reference | 0 |
| Filmaster | Movie review and recommendation service | Recommendations | 0 |
| filtrbox | Social media monitoring | Social | 0 |
| Financial Content JavaScript Quote | Market data and stock quotes service | Financial | 0 |
| Financial Content Snapshot Quote | Stock quote service | Financial | 0 |
| Financial Content XML Quote | Stock and market price data service | Financial | 0 |
| Financial Services Authority GABRIEL | UK financial regulatory information submission service | Financial | 0 |
| FinancialContent Fundamental Data | Stock and market price data service | Financial | 0 |
| FinancialContent Stock Chart | Stock market charts creation service | Financial | 0 |
| FinancialContent Symbol Map | Stock and market price data service | Financial | 0 |
| FinancialForce Accounting | Hosted financial accounting service | Financial | 0 |
| FinCRN | U.S. SEC Edgar filings | Financial | 0 |
| Find That File | File type search engine | Search | 0 |
| Find your IP | Return IP address | Internet | 0 |
| Find Your MP- UK Parliament | UK MP search tool | Government | 0 |
| find2follow | Twitter follower search | Social | 0 |
| FindMeOn | Social site identity management services | Social | 0 |
| FindMeSpecials | Find local specials and events | Shopping | 0 |
| FindPeopleFree | Find UK residents and businesses by region | Tools | 0 |
| Finotec | Stock Trading Service | Financial | 0 |
| Finser | Financial tracking service | Financial | 0 |
| Firebase | Mobile backend platform | Backend | 0 |
| FireHost | Managed hosting solutions | Internet | 0 |
| FireText | SMS marketing service | Messaging | 0 |
| firmensms.at | SMS gateway service | Messaging | 0 |
| Firmwater | Learning management system | Education | 0 |
| First Data Global Gateway | Transaction processing and payment service | Payment | 0 |
| FirstGiving | Charitable donation processing service | Payment | 0 |
| Fishbowl | Inventory management service | Enterprise | 0 |
| Fisheye Analytics | Media monitoring and analytics platform | Social | 0 |
| FishingBuddy | Sport fishing and hunting community information | Sports | 0 |
| Fishup | Online photo sharing service | Photos | 0 |
| Fitbook | Fitness data recording and vizualization service | Other | 0 |
| FitnessWizard | Physical fitness assessment calculations | Sports | 0 |
| Five9 | Call center management service | Enterprise | 0 |
| FiveFilters.org | Content extraction service | Tools | 0 |
| FixYa | Question and answer site | Social | 0 |
| Fizber Events | Local events search services | Events | 0 |
| Fizber Schools | School finder service | Education | 0 |
| Flash Polling | Online survey and questionnaire service | Utility | 0 |
| Flashcard Exchange | Online Flashcard Service | Education | 0 |
| FlashFoto Image Processing | Image processing service | Photos | 0 |
| FlashGameDistribution | Flash game distributor | Games | 0 |
| Flattr | Content Sharing Service | Social | 0 |
| FlauntR | Photo editing service | Photos | 0 |
| Fleetly | Competition-Based Fitness Service | Sports | 0 |
| FleetMon | Ship location and maritime traffic information service | Shipping | 0 |
| FlexiScale | Virtual server hosting services | Internet | 0 |
| Flexmls | Real Estate Listing Service | Real Estate | 0 |
| FlexPaper | Document viewer for web | Tools | 0 |
| Flextrip | Travel booking and comparison services | Travel | 0 |
| Flickr Real-Time | Realtime photo updates from Flickr | Photos | 0 |
| Flig.ht Data | Aviation and geo data service | Other | 0 |
| Flight Explorer FastTrack | Real-time flight information service | Travel | 0 |
| Flight Routing | Flight routing data service | Travel | 0 |
| FlightAware | Live flight aircraft tracking | Travel | 0 |
| FlightCaster | Flight delay predictor | Travel | 0 |
| FlightLookup | Flight Schedules and Airport Lookup Service | Travel | 0 |
| Flightwise | Flight tracking service | Travel | 0 |
| Flingo | Video sharing service | Media Management | 0 |
| Flintbox | Collaborate Research Service | Project Management | 0 |
| Fliptop | Turn email addresses and Social IDs into complete digital identities | Social | 0 |
| Flipzu | Broadcasting and sharing service | Tools | 0 |
| Fliqz | Video search service | Media Search | 0 |
| Flite Advertising | Cloud based advertising platform | Advertising | 0 |
| Flixwagon | Video creation and sharing platform | Video | 0 |
| Flixya | Video, photo, and blog sharing platform | Social | 0 |
| Flo2Cash | New Zealand online payment service | Payment | 0 |
| Flocknote | Group messaging service | Messaging | 0 |
| Flomio | Near field communications (NFC) service | Tools | 0 |
| Floorplanner | Building floorplan design service | Tools | 0 |
| FloraBrasil | Brazilian biological resource information service | Science | 0 |
| Florida DHSMV | Florida motor vehicle testing outsourcing service | Government | 0 |
| Flow | Real-time information and data platform | Tools | 0 |
| flow.io | Project management service | Project Management | 0 |
| Flowdock | Team inbox with chat | Chat | 0 |
| Flowplayer | HTML5 video player | Video | 0 |
| FluidDB | Information Architecture & Database Service | Database | 0 |
| Fluidinfo | Online storage and search platform for metadata | Search | 0 |
| FluidSurveys | Online Survey Tools | Tools | 0 |
| FluidVM | System Tools and Management Service | Tools | 0 |
| Flukso | Electricity metering service | Tools | 0 |
| Flurry | Mobile analytics platform | Telephony | 0 |
| Flux | Social networking platform from Viacom | Social | 0 |
| Fluxiom | Online File Storage and Management | Storage | 0 |
| Flyagogo | Aviation sectional chart service | Mapping | 0 |
| FlyBase | Drosophila genomic information database | Science | 0 |
| Flyhour | Random video discovery service | Video | 0 |
| FlyMine | Research animal genetic data service | Science | 0 |
| FlyOnTime | Flight time and delay resource | Travel | 0 |
| Fog Creek FogBugz XML | Bug tracking software | Tools | 0 |
| Fog Creek Kiln | Code review tool | Tools | 0 |
| Foldier | Personal online file sharing and mangement | File Sharing | 0 |
| Foller.me | Twitter user information service | Social | 0 |
| follow cost | Find the follow cost of a Twitter account | Social | 0 |
| Follw.it | Social TV and movie community | Entertainment | 0 |
| foneAPI | VoIP and internet telephony service | Telephony | 0 |
| Fonolo | Call center menu bypass services | Telephony | 0 |
| Font Squirrel | Font retrieval and generation service | Other | 0 |
| Fonts.com | Font and web font service | Other | 0 |
| Fonxvard | Image manipulation service | Photos | 0 |
| Food Candy | Social site for foodies | Food | 0 |
| Food Genius | Restaurant and food data | Food | 0 |
| Food Security Data | Data Indices Download Service | Database | 0 |
| Food2Fork | Recipe database | Food | 0 |
| Food2u | Food delivery application | Food | 0 |
| FoodEssentials Label | Food product data service | Food | 0 |
| Foodini | Polish online supermarket | Shopping | 0 |
| FoodSpex | Belgian food product information service | Medical | 0 |
| Foodspotting | Food review and sharing service | Food | 0 |
| FoolDNS | Online privacy protection service | Security | 0 |
| Footfeed | Geolocation checkin service | Social | 0 |
| Footprint Services | Astronomy observation database and visualization service | Science | 0 |
| Footprints | Community funding service | Social | 0 |
| For Wanted | Buying and selling platform | Shopping | 0 |
| Ford | Application development for vehicles platform | Transportation | 0 |
| Foreca | Weather forecasting service | Weather | 0 |
| Forecast | Weather forecast data service | Weather | 0 |
| ForeclosureListings.com | Real estate foreclosures | Real Estate | 0 |
| Forex | Foreign exchange retail trading service | Financial | 0 |
| ForexYard | Automated Trading Service | Financial | 0 |
| Fork CMS | Open-source content management system | Tools | 0 |
| Form CheckUtils | Form field validation tool | Tools | 0 |
| FormLizard | Form completion service | Tools | 0 |
| FormSite | Online html forms and web survey builder | Internet | 0 |
| Formspring | Q&A social network | Answers | 0 |
| Forni.ca | Adult video grabber | Video | 0 |
| ForSWOR | Star Wars gaming forum | Games | 0 |
| Forté Group | IT solutions provider | Internet | 0 |
| Fortumo Mobile Payments | Mobile payment platform | Payment | 0 |
| Fortune3 Shopping Cart | eCommerce platform | Shopping | 0 |
| ForWhereIAm | Location Specific Marketing Service | Advertising | 0 |
| Fotki | Photo sharing service | Photos | 0 |
| Fotobabble | Talking photo service | Photos | 0 |
| FotoFlexer | Online image editor | Photos | 0 |
| Fotomoto | Image marketplace service | Photos | 0 |
| FotoZap | Photo sharing service | Photos | 0 |
| FoundationDB | Transactional NoSQL database | Database | 0 |
| foursquare Merchant | foursquare merchant platform | Shopping | 0 |
| Foxcentral News Service | Programming language news service | News | 0 |
| FoxMetrics | Website visitor activity monitoring service | Internet | 0 |
| FoxTranscribe | Online human transcription service | Tools | 0 |
| Foxweave | Data syncing and migration service | Enterprise | 0 |
| FoxyCart | Shopping Cart Service | Shopping | 0 |
| FRA Safety Data Download | U.S. railroad accident information service | Transportation | 0 |
| Fractal | HTML email validation and fixing service | Email | 0 |
| Fragmento | Business compliance management service | Enterprise | 0 |
| Framesocket | Video management and publishing platform | Video | 0 |
| Franglo | European classifieds service | Shopping | 0 |
| FraudLabs AreaCodeWorld NPA NXX Area Code | Geographical location service | Reference | 0 |
| FraudLabs BrowserObject Browser Detection | Browser information detection service | Internet | 0 |
| FraudLabs Credit Card Fraud Detection | Credit card verification service | Security | 0 |
| FraudLabs IP2Currency | Currency exchange rate service | Financial | 0 |
| FraudLabs IP2Location | Geolocate by IP address service | Tools | 0 |
| FraudLabs IP2Proxy | Annymous proxy detection service | Security | 0 |
| FraudLabs MailBox Validator | Email address validation service | Email | 0 |
| FraudLabs Mexico Postal Code | Mexican postal code geolocation service | Mapping | 0 |
| FraudLabs ZIPCodeWorld United States | United states postal code geolocation service | Tools | 0 |
| Freak CMS User-agents | User Agent checking service | Security | 0 |
| Freckle | Time tracking service | Project Management | 0 |
| FRED | US Federal Reserve Economic data | Government | 0 |
| Free Content Articles | Syndicated content service | Entertainment | 0 |
| Free Music Archive | MP3 archive | Music | 0 |
| Free SMS Gatway | Bulk SMS service | Messaging | 0 |
| FreeAgent | Accounting application services | Enterprise | 0 |
| FreebieSMS Auto Dialer | Send audio messages to phones | Telephony | 0 |
| FreeCite | Bibliographic citations parsing service | Reference | 0 |
| Freecode Data | Open source software database | Database | 0 |
| FreeCovers.net | Album cover archive | Music | 0 |
| Freedb / CDDB | Online CD catalog service | Music | 0 |
| FreedomSpeaks | United States political data lookup | Government | 0 |
| FreeFax | Israeli fax service | Fax | 0 |
| FreeGeoIP | IP and host name geolocating service | Mapping | 0 |
| Freelancer | Job search and recruiting service for freelancers | Job Search | 0 |
| freerisk | Risk modeling service | Enterprise | 0 |
| Freesound | Music and sound search service | Music | 0 |
| Freespee | Making mobile display advertising convert as well as search | Telephony | 0 |
| FreeStockCharts | Stock and financial market data and charting service | Financial | 0 |
| Freewebs | Web publishing platform | Blogging | 0 |
| FreightCenter | Shipping aggregation and information service | Shipping | 0 |
| Frengly Translation | Text translation service | Reference | 0 |
| Frengo | Mobile widgets and messaging platform | Messaging | 0 |
| FreshDesk | On demand customer support software | Enterprise | 0 |
| Freshmeat | Open source application index | Reference | 0 |
| Friday-Ad | U.K. classified ad service | Advertising | 0 |
| Friendpaste | Fast text/code sharing service | Social | 0 |
| Friendship Industries Secure Login | Disabled persons' employment organization login service | Internet | 0 |
| FriendSurf | Hungarian social network | Social | 0 |
| Frinly | Photo sharing service | Photos | 0 |
| Frog Learning Platform | Online learning management platform | Education | 0 |
| Frommer's Unlimited | Travel Content Service | Travel | 0 |
| Front Door Daily Deals | Multi city daily deal service | Shopping | 0 |
| Frontier Airlines Word Wheel Local | Airport locator service | Travel | 0 |
| Frontlab | Marketing and print material optimization service | Enterprise | 0 |
| FSO NAC | Middle Eastern geocoding, mapping, and routing service | Mapping | 0 |
| Fspic | Photo sharing for the Foursquare service | Photos | 0 |
| FSRS FFATA Reporting | U.S. government contractor reporting service | Government | 0 |
| Ftsee | Financial securities information feed service | Financial | 0 |
| ftw.gd | URL-shortening service | Tools | 0 |
| FuelFrog | Track Your Gas Mileage | Transportation | 0 |
| FuelSurchargeIndex.org | Fuel surcharge data service | Shipping | 0 |
| Fujifilm Smart Publishing | Photo product catalog services | Photos | 0 |
| Fulcrum | Location based data collection application support | Mapping | 0 |
| Fulcrum Mobile | Text message marketing service | Messaging | 0 |
| FullContact | Contact Information Service | Office | 0 |
| FullContact CardShark | Business card manager | Office | 0 |
| FullCourt Voice | Telelphony development service | Telephony | 0 |
| FullerData Fortune Cookie | Random message generator | Entertainment | 0 |
| FullerData News | Multi-source news service | News | 0 |
| Funambol Cloud | Mobile cloud sync service | Internet | 0 |
| FuncNet | Protein analysis service | Tools | 0 |
| Fundraise.com | Social fundraising platform | Social | 0 |
| Fupa Games | Flash games provider | Games | 0 |
| Furk.net | Cloud file storage service | Storage | 0 |
| FuseMail | Email hosting service | Email | 0 |
| Fusicology | Music and progressive entertainment hub | Music | 0 |
| Futuremail | Email Scheduling and Queuing Service | Email | 0 |
| FuturePrice Data | live NYSE shares feed | Financial | 0 |
| FutureSimple Base | CRM management | Enterprise | 0 |
| Fuze Box | Internet and mobile communication services | Chat | 0 |
| Fvicon | Favicon retrieval service | Tools | 0 |
| Fwix Local News | Local news service | News | 0 |
| Fwix Wire | Local news gathering service | News | 0 |
| Fyndiq | Swedish Merchant Hub and Shopping Service | Shopping | 0 |
| G-language GAE | Genome sequence analysis service | Science | 0 |
| G8L.US | URL shortening service | Internet | 0 |
| GaggleAMP | Social media advertising service | Advertising | 0 |
| Gaglers | Promotional chat service | Messaging | 0 |
| GaiaSup | Spatial engine for location-based services | Mapping | 0 |
| Gain Capital AutoEx Trading | Forex trading platform | Financial | 0 |
| Galleria.io | Image gallery service | Photos | 0 |
| Gama System Exchange Rates | Currency exchange rate reference service | Financial | 0 |
| Gama System Stock Quotes | Stock and index value data service | Financial | 0 |
| Game Jolt | Independent video game directory | Games | 0 |
| GameBanana | Video Game Customization Service | Games | 0 |
| GAMEhud | Online game management | Games | 0 |
| GamerCV | Gaming score retrieval service | Games | 0 |
| GamerDNA Helix | Warhammer game character service | Games | 0 |
| gamerID | Gaming identity authenticater | Games | 0 |
| GameStamper Graph | Casino game distribution platform | Games | 0 |
| Gameyola | Online gaming community | Games | 0 |
| Gandi Domain | Domain management service | Internet | 0 |
| Gandi Hosting | Hosting management service | Internet | 0 |
| Gantto | Gantt project management charting service | Project Management | 0 |
| GarageTV | Video sharing service | Video | 0 |
| Gastus | Expense tracking | Financial | 0 |
| GatherContent | Website content management service | Internet | 0 |
| GatorURL | URL Shortening Service | Utility | 0 |
| Gbanga Puppetmaster | Location-based gaming platform | Games | 0 |
| GBR Direct | European business activity data service | Search | 0 |
| gdgt | Consumer electronics review site | Recommendations | 0 |
| Ge.tt | File sharing and publishing service | File Sharing | 0 |
| Geckoboard | Real-time business dashboard | Enterprise | 0 |
| Geeklist | Online programming community | Social | 0 |
| GEMET | Multi-language thesaurus management service | Reference | 0 |
| GEMStat | Water quality monitoring station information service | Science | 0 |
| Genband A2 | Cloud based telecommunications services | Telephony | 0 |
| GenealogyCloud OneGreatFamily | Genealogy and family tree service | Other | 0 |
| GeneCoDis2 | Genetic structure matching service | Science | 0 |
| GeneCruiser | Genomic information database | Medical | 0 |
| GeneProf | Genetic research data service | Science | 0 |
| General Motors | Application development for vehicles platform | Transportation | 0 |
| Genetics Home Reference | Genetics research site | Reference | 0 |
| Geni | Genealogy Service | Other | 0 |
| Genie CashBox | Communication and Payment Processing Service | Payment | 0 |
| Genome Maps | Genome browser service | Science | 0 |
| GenomeMatrix | Multi-species genome analysis service | Science | 0 |
| GenomeQuest | Biological data managment platform | Other | 0 |
| Genomic Name Server | Bioinformatics database | Science | 0 |
| GenoPro | Genealogy software | Tools | 0 |
| Geo3DModelService | Dutch underground geologic mapping service | Science | 0 |
| GeOAP | Japanese GIS mapping service | Mapping | 0 |
| GeoAstro | Astronomical event service | Science | 0 |
| Geobytes Ajax Autocomplete Cities List | Autocompleting list of cities and city information | Tools | 0 |
| Geocaching | Geocaching Data Set and Feed Service | Games | 0 |
| GeoCerts Reseller | SSL reseller platform | Internet | 0 |
| GeoClique | Social Media Platform | Social | 0 |
| Geocoda | Geolocation service | Mapping | 0 |
| GeocodeFarm | Geocoding service | Mapping | 0 |
| Geocoding Service for Korea | Korean geocoding service | Mapping | 0 |
| GeoCommunicator | BLM public lands mapping and data service | Mapping | 0 |
| GeoData Demographics | Location-specific demographics data service | Mapping | 0 |
| Geodrop | SMS messaging service | Messaging | 0 |
| Geognos World Countries | Worldwide geocoding information service | Mapping | 0 |
| GeoIPs | IP location and information service | Mapping | 0 |
| GeoLoqal | Development platform to build location based solutions | Mapping | 0 |
| GeoMaker | Geo enrichment platform | Mapping | 0 |
| GeomaxService | Naturalis data retrieval service | Science | 0 |
| GeoMe | Location based IP tracking service | Tools | 0 |
| Geomena | Open geo database of WiFi access points | Other | 0 |
| GeoNB Coordinate Transformation Service | Local coordinate transformation service | Mapping | 0 |
| GeoNet Quake | New Zealand earthquake reporting service | Science | 0 |
| GeoRanker | Search engine result page analysis and monitor service | Search | 0 |
| GeoReach Neighborhood | Location based adversting service | Advertising | 0 |
| George Vustrey Weather | Weather forecasting service | Weather | 0 |
| Georgia Revenue Service WayBill | Electronic waybill creation and management service | Government | 0 |
| Geosion mobile SMS | Bulk SMS messaging service | Messaging | 0 |
| GeoSmart | New Zealand geospatial and mapping services | Mapping | 0 |
| Geosophic | User analytics for mobile gaming | Games | 0 |
| GEOSPAN | Geographic information and visualization service | Mapping | 0 |
| Geotoko | Location based campaign creation and search | Advertising | 0 |
| GEPIR | Get company contact information via bar code | Enterprise | 0 |
| German Bank Code Service | German Banking Code lookup service | Financial | 0 |
| Get Exchange Rates | Exchange rate information service | Financial | 0 |
| Get Favicon | Return favicons for a URL | Internet | 0 |
| Get Localization | Crowdsourcing Translation Service | Tools | 0 |
| Get Me Listed | Local market research platform | Advertising | 0 |
| Getafreelancer | Freelance programmer database | Job Search | 0 |
| Getit Hot Deals | Indian business advertising and product search service | Shopping | 0 |
| GetMobile | Mobile advertising network | Advertising | 0 |
| Getpincode | Indian pincode search engine | Reference | 0 |
| getpos.de | German geolocation services | Mapping | 0 |
| GetResponse | Email marketing service | Email | 0 |
| GetSimple | Content management system extension service | Utility | 0 |
| Getsocio | Daily deal and group buying website platform | Shopping | 0 |
| Getting Homework Done | Homework submission service | Education | 0 |
| Getty Images Connect | Licensed photography platform | Photos | 0 |
| GetYourGuide | Travel tours and activities booking service | Travel | 0 |
| GetYourIDX | Real Estate IDX Services | Real Estate | 0 |
| GG.com Tipzone Pro | Horseracing tipster proofing service | Sports | 0 |
| GHNS Desktop Exchange Service | Customizable file and information exchange service | File Sharing | 0 |
| Giant Bomb | Database of game information | Games | 0 |
| GiftRocket Gift Card | Gift money transfers | Social | 0 |
| Gifts.com | Gift recommendation service | Shopping | 0 |
| Gigabark | Voice and text broadcasting solutions | Tools | 0 |
| Gigatribe | Hard drive file sharing tool | Photos | 0 |
| GigMasters | Entertainment booking service | Entertainment | 0 |
| GigPark | Local recommendations service | Recommendations | 0 |
| Gigulate | Music blogging service | Music | 0 |
| Gigwalk | Mobile workforce service | Job Search | 0 |
| Gilt Groupe | Online discount retail store | Retail | 0 |
| Gimahhot Shopping | Online shopping marketplace | Shopping | 0 |
| Gimme Bar | Bookmarking service | Bookmarks | 0 |
| Gimmie | Customer loyalty and reward service | Retail | 0 |
| Gink | GPS tracking device communications service | Mapping | 0 |
| Ginzametrics | SEO service | Internet | 0 |
| Gipuzkoa | Spanish province government data | Government | 0 |
| GIS Cloud | Geospatial data cloud hosting & map creation service | Mapping | 0 |
| Gistpoint | Internet article summary service | Internet | 0 |
| GitHub Jobs | Computer-related job listing service | Job Search | 0 |
| GiveALink | Social bookmarking service | Bookmarks | 0 |
| Giving Impact | Donor communications service | Payment | 0 |
| Glam Apps Platform | Women-focused content and social network | Social | 0 |
| Glen Abbey Golf Club Photo Album | Photo album retrieval service | Photos | 0 |
| Gliffy | Online flowcharting and diagramming service | Other | 0 |
| Glimt | Norway event aggregation service | Events | 0 |
| Glitch | Online massively multiplayer game | Games | 0 |
| Global Currents Pipeline | Online donation processing service | Financial | 0 |
| Global Giving | Online donation and causes marketplace | Social | 0 |
| Global IP Sound | Voice Processor for VoIP Services | Telephony | 0 |
| Global Matrix | Travel information and reservation service | Travel | 0 |
| Global Sports Media | Live Scores, Stats, Odds, News & Video | Sports | 0 |
| Global Tennis Network | Online tennis network | Sports | 0 |
| GlobalSign | Digital certification service | Security | 0 |
| Globalstar OSAT | Satellite ommunications availability service | Telephony | 0 |
| GlobalTeach LMS | Swiss government learning management service | Education | 0 |
| GlobalTranz Carrierrate | Freight booking and transfer service | Shipping | 0 |
| Globe Labs | Telecommunications services | Telephony | 0 |
| Globedia | News aggregation service | News | 0 |
| GlobPlotter | Protein structure prediction service | Science | 0 |
| Globus Online Transfer | File transfer service | File Sharing | 0 |
| Glocal Focal US Mortality Data | US government mortality data | Reference | 0 |
| Gloe | Geo-tagging service | Mapping | 0 |
| Gloomshade | Remote media company | Job Search | 0 |
| Glosk | Location Based Photo Search | Photos | 0 |
| Glow | Social advertising platform | Advertising | 0 |
| GMOD | Remote Querying of Biological Databases | Reference | 0 |
| gNewBook | Social network | Social | 0 |
| Gnip | Social media data delivery service | Social | 0 |
| Gnome | Collaborative Software Service | Utility | 0 |
| gnTEAM Full Text | Text editing and bioinformatics data retrieval services | Tools | 0 |
| Go Processing | Mobile payments service | Payment | 0 |
| Go.USA.gov | Government domain URL shortener | Government | 0 |
| GoalBit | Video delivery platform | Video | 0 |
| GoBox | Cloud File Storage and Sharing Service | File Sharing | 0 |
| GoCardless | Online payments gateway | Payment | 0 |
| GoDaddy | Domain registration service | Internet | 0 |
| goEmerchant | Online payment service | Payment | 0 |
| GoFax Fax | Online Fax Service | Fax | 0 |
| GoFax SMS | Internet Fax and SMS Service | Fax | 0 |
| GoGrid | Cloud computing and web hosting services | Internet | 0 |
| Golem.de | News article discovery service | News | 0 |
| Golf Channel CRM Tee Time | Golf tee time reservation service | Sports | 0 |
| GolfNet | Golf handicap and tournament management service | Sports | 0 |
| Golm Metabalome Database | Metabolic molecule database | Science | 0 |
| Gomi | Cloud video encoding service | Video | 0 |
| GoMobileIQ Headlight | Route Optimization | Shipping | 0 |
| GoNudge SMS | SMS text and email messaging service | Messaging | 0 |
| goo.im | Android-related file sharing service | File Sharing | 0 |
| Good Business Day Exchanges | International exchange holidays and hours reference service | Financial | 0 |
| GoodData | Business information service | Enterprise | 0 |
| GoodGuide | Green healthy product ratings | Recommendations | 0 |
| GoodRx | Drug Price Comparison Service | Shopping | 0 |
| GoodStorm | Online retail ecommerce | Shopping | 0 |
| Goodzer Local products | Local product search | Shopping | 0 |
| Googe Refine ReconciliationService | Semantic linking service | Utility | 0 |
| Google APIs Discovery | Google API directory service | Internet | 0 |
| Google Apps Group Migration | Email and file migration service | Email | 0 |
| Google Apps Profiles Data | Update and retrieve Google Apps profiles | Utility | 0 |
| Google Apps Reseller | Google Apps reseller account management service | Retail | 0 |
| Google BigQuery | Large dataset querying service | Database | 0 |
| Google Commerce Search | Online store and e-commerce product search service | Shopping | 0 |
| Google Compute Engine | Google based virtual machine service | Backend | 0 |
| Google Coordinate | Workforce management application | Enterprise | 0 |
| Google Diacritize | Language pronunciation tool | Reference | 0 |
| Google DoubleClick Ad Exchange Seller | Advertising campaign management service | Advertising | 0 |
| Google Enterprise License Manager | License Manager | Enterprise | 0 |
| Google Issue Tracker Data | View and update issues on Google Project Hosting | Tools | 0 |
| Google Moderator | Tool for collection and ideas, questions and recommendations | Tools | 0 |
| Google Patent Search | Patent search service | Search | 0 |
| Google Payment Express | Mobile payments service | Payment | 0 |
| Google Plus Hangouts | Video chat | Chat | 0 |
| Google Plus History | Content sharing service | Social | 0 |
| Google PowerMeter | Power consumption monitoring tool | Tools | 0 |
| Google Research Search | Search services for researchers | Search | 0 |
| Google Save to Wallet | Digital wallet services | Financial | 0 |
| Google Shared Spaces | Collaborative widget service | Widgets | 0 |
| Google Site Verification | Website owner verification service | Security | 0 |
| Google Time Zone | Time zone by location service | Tools | 0 |
| Google Virtual Keyboard | Vritual keyboard service | Other | 0 |
| Goozex | Video game trading services | Games | 0 |
| GOP.gov | US Congressional Republicans data | Government | 0 |
| Goplan | Online project management | Project Management | 0 |
| GoPollGo | Online and mobile polling service | Answers | 0 |
| Gopress | Belgian online newsstand | Entertainment | 0 |
| GOR protein secondary structure prediction | Genetic structure prediction services | Science | 0 |
| Goslyudi.ru | Public ratings of Russian government bloggers | Government | 0 |
| GOSO | Online vehicle and dealer inventory service | Shopping | 0 |
| GoSquared | Real time web analytics | Internet | 0 |
| Gothere Maps | Singapore commuter map service | Mapping | 0 |
| Gothia PayByBill | Northern European online payment service | Payment | 0 |
| GoToBilling | Online payment service | Payment | 0 |
| Government of the Canary Islands Platino | e-Government services platform | Government | 0 |
| GovHG Data.One | Hong Kong real-time traffic | Transportation | 0 |
| GovTracker | Rhode Island state data services | Government | 0 |
| gPodder | Podcast retrieval service | Tools | 0 |
| GPS Explorer | GPS data and modeling service | Mapping | 0 |
| GPSit TrackFusion | GPS tracking services for businesses and police | Security | 0 |
| Grab A Great Deal | Search capability service | Search | 0 |
| Gracenote | Music and video metadata service | Music | 0 |
| Granica | Polish border crossing and tax information services | Government | 0 |
| Granicus Open Platform | Government open data service | Government | 0 |
| Granicus Search | Government agency search service | Government | 0 |
| Granicus Training Management Suite | Government employee training service | Government | 0 |
| Grants.gov | Federal grant application submission service | Financial | 0 |
| Grapevine SMS | South African SMS/text message service | Messaging | 0 |
| GraphEdge | Social network monitoring service | Social | 0 |
| GraphicMail | Email newsletter service | Email | 0 |
| GraphicMail | Online email marketing service | Email | 0 |
| GraphMagic | Graph and chart services | Other | 0 |
| GraphMuse | Facebook users clustering service | Social | 0 |
| Gravity | Website personalization service | Recommendations | 0 |
| Graydon Company Data Webservice | UK company information database | Reference | 0 |
| GRBHosts | Astronomical data service | Science | 0 |
| Greater Taree City Council AutoComplete | Autocomplete service for Australian development application search | Government | 0 |
| Greek Republic Ministry of Finance GSIS | Greek citizens and traders information service | Government | 0 |
| Green Thing | Green lifestyle suggestion service | Social | 0 |
| GreenButton Cloud | Cloud workload processing service | Enterprise | 0 |
| GreenButton Management | Cloud based application hosting | Enterprise | 0 |
| Greencheck | Website sustainability checker | Tools | 0 |
| GREENCLOUDS | Infrastructure as a service | Internet | 0 |
| Greendizer | Invoicing designed for developers | Financial | 0 |
| Greengoose | Wireless motion sensor game service | Games | 0 |
| GreenLight Data | Bankruptcy records service | Financial | 0 |
| GreenQloud | Online storage and hosting service | Storage | 0 |
| GrepCode | Java code search service | Search | 0 |
| Grid5000 | Computer science research group | Other | 0 |
| GridLab | Grid computing facilitation service | Internet | 0 |
| Gridspot | Cloud based computational project resource | Internet | 0 |
| GridVid.me | Cloud based parallel video encoding service | Video | 0 |
| grnVoIP | VoIP Service | Telephony | 0 |
| Grocery Server | Grocery search engine | Food | 0 |
| GroopBuy | Local deals and group buying service | Shopping | 0 |
| Groove | Help desk service | Answers | 0 |
| Groovy enVironment Manager | Parallel SDK management service | Backend | 0 |
| Grou.ps | Social network creation service | Social | 0 |
| GroundLink | Ground transportation service | Transportation | 0 |
| Group Commerce | eCommerce platform | Retail | 0 |
| Group Texting | SMS Messaging Service | Messaging | 0 |
| Group2call | SMS and voice messaging service | Messaging | 0 |
| Groupcentric | User engagement service for applications | Social | 0 |
| Groupdeal2U | Coupon Shopping Service | Shopping | 0 |
| GroupDocs | Online document management service | File Sharing | 0 |
| GroupFlier | Group messaging service | Telephony | 0 |
| GroupHigh | Blog Search and Meta Data | Blog Search | 0 |
| GroupMe | Social bookmarking | Bookmarks | 0 |
| GroveStreams | Real time decision making platform | Enterprise | 0 |
| Grow VC | Crowsourced funding for startups service | Social | 0 |
| GSMA OneAPI Location | Mobile location services | Telephony | 0 |
| GSMA OneAPI MMS | Mobile messaging services | Messaging | 0 |
| GSMA OneAPI Payment | Mobile payment services | Payment | 0 |
| GSMA OneAPI Zonal Presence | Mobile location services | Telephony | 0 |
| Gtdagenda | Goal setting and project management service | Project Management | 0 |
| GTmetrix | Website Performance Testing Tool | Tools | 0 |
| gTrax | Google Apps time tracking service | Project Management | 0 |
| Guardian Payment Systems | Payment processing services | Payment | 0 |
| Guardian Politics | UK government and political resources | Government | 0 |
| Guardly | Mobile personal safety service | Social | 0 |
| gubb | List creation and management | Database | 0 |
| Guerrilla Mail | Temporary Email Service | Email | 0 |
| Guidewire | Property and Casualty Insurance billing services | Other | 0 |
| Guitar Chord | Music utility service | Music | 0 |
| Gumroad | Social product marketplace | Social | 0 |
| GunBroker.com | Firearm auction site | Shopping | 0 |
| GuruCue | Personalized movie recommendations service | Recommendations | 0 |
| GuteGutscheine | German coupons and daily deals service | Shopping | 0 |
| Guzzle Ayup! | PubSubHubbub Hub | Feeds | 0 |
| GW2Spidy | Guild Wars 2 marketplace | Games | 0 |
| Gwinnett Roman Baptist Church Open Bible | Bible excerpt service | Reference | 0 |
| GXchart | Chart generation service | Other | 0 |
| Gyft | Mobile gift card platform | Shopping | 0 |
| gzaas | Custom typography messaging service | Internet | 0 |
| H-InvDB | Human genetic structure data service | Science | 0 |
| Habbo | Online game service | Games | 0 |
| Hachi | Social networking service | Social | 0 |
| Hacker News Mobile | Hacker News mobile post retrieval service | News | 0 |
| Hackruiter | Job recruiting info service | Job Search | 0 |
| HackSense | H.A.C.K. website status monitoring service | Internet | 0 |
| Haiku Learning Management System | Online education and learning service | Education | 0 |
| Hakia | Semantic search engine | Search | 0 |
| Halal Daily | Halal daily deals for the greater New York area | Shopping | 0 |
| HaleyMail | Email Marketing Campaign Service | Advertising | 0 |
| Halo:Reach Stats | Access Halo:Reach game and player information | Games | 0 |
| HammerWiki War | Online Gaming Service | Games | 0 |
| Hampton Roads Crime | Crime data for Virginia Beach | News | 0 |
| Happenstand | Bay area events listing service | Events | 0 |
| HarperCollins Open Book | Book publisher | Other | 0 |
| Harvard Dash | Digital repository of scholarly articles | Education | 0 |
| Harvard Faculty Finder | Harvard faculty information service | Education | 0 |
| Harwich Haven Authority | UK nautical and port information service | Shipping | 0 |
| HashRack | Bitcoin Mining Service | Financial | 0 |
| HASTUschon | German products marketplace | Shopping | 0 |
| Hathi Trust Data Distribution | Library catalog search service | Reference | 0 |
| HathiTrust Volumes | Library catalogue information retrieval service | Education | 0 |
| Hatsize | Hosted training and online demo service | Education | 0 |
| Hawkesbury City Council Masterview | Local development application tracking service | Government | 0 |
| Hayoo! | Haskell library search service | Search | 0 |
| Haystack Networking | Social networking for business | Other | 0 |
| Há Greve | Portugese Strike Information | Reference | 0 |
| hbookmark | Real-time semantic bookmarking via Twitter | Bookmarks | 0 |
| HDmessaging | Mobile messaging service | Messaging | 0 |
| Health 2.0 | Directory of health-related APIs | Medical | 0 |
| Health Indicators Warehouse | Health indicators database | Medical | 0 |
| HealthData.gov | Health data service | Government | 0 |
| HealthData.gov catalog | Medical datasets catalog service | Medical | 0 |
| Healthfinder.gov | Government health agency information | Government | 0 |
| HealthJibe | Personal health platform | Medical | 0 |
| Healthnotes | Self-care Decision Support | Medical | 0 |
| HealthTap | Online health network service | Medical | 0 |
| Healthx | Healthcare information portal | Medical | 0 |
| Heardable | Brand evaluation tool | Enterprise | 0 |
| HeatMap | Heat map generator service | Mapping | 0 |
| Heello | Microblogging service | Social | 0 |
| HeiaHeia | Workout and fitness tracking service | Sports | 0 |
| HelioClim | Solar energy information service | Weather | 0 |
| Helioid | Web visual search service | Search | 0 |
| Helioviewer | Solar and heliospheric data access | Other | 0 |
| Hello Social | Social promotion and engagement platform | Social | 0 |
| HelloFax | Fax and signature service | Office | 0 |
| HelloSign | Electronic signature service | Enterprise | 0 |
| HelloTxt | Service for updating status messages | Social | 0 |
| Helpshift | Mobile app helpdesk service | Answers | 0 |
| HelpSpot | Web-based helpdesk service | Enterprise | 0 |
| Helsinki City Service Map | City services maps | Mapping | 0 |
| Helsinki Regional Transport Authority | Helsinki public transit trip planner | Transportation | 0 |
| Helsinkikanava Open Data | Helsinki city council meeting information and recordings | Government | 0 |
| Herbária | Hungarian medicinal herb and tea shop | Shopping | 0 |
| Heroes of Newerth Statistics | Heroes of Newerth game statistics | Games | 0 |
| Heroku Provider | Cloud connection service | Internet | 0 |
| Hetzner | Web hosting management services | Internet | 0 |
| Hexillion Whois | Whois query service | Internet | 0 |
| Hey Spread | Video distribution services | Video | 0 |
| Hey!Spread | Video mass-distribution service | Video | 0 |
| Heystaks | Social search and recommendation service | Search | 0 |
| HeyWatch | Professional Cloud Video Encoding Software as a Service | Video | 0 |
| HeyWhatsThat | Geographic feature and viewshed service | Mapping | 0 |
| Heyzap Server | Game user information service | Games | 0 |
| HG Datenbanken | German collective agreement information management service | Enterprise | 0 |
| Hictu | Video microblogging service | Video | 0 |
| HIE Events | Scottish business support events | Events | 0 |
| HighCharts | Information Charting Service | Tools | 0 |
| HighlightCam | Video summarization service | Video | 0 |
| HighStock | Stock Charting Service | Tools | 0 |
| HighWire Press | Scholarly publications usage information service | Education | 0 |
| HiGrids INforAMA | Automobile motion monitoring service | Transportation | 0 |
| Hindenbug | Bug and log tracking service | Tools | 0 |
| HIP Digital DME | Digital content promotion services | Advertising | 0 |
| HIPAASpace | HIPAA code lookup services | Medical | 0 |
| HipChat | Instant messaging service for companies and teams | Chat | 0 |
| HipCricket | Mobile marketing and advertising services | Advertising | 0 |
| HipGeo | Trip tracking and recording application | Travel | 0 |
| Hipmob | Mobile Live Chat Service | Chat | 0 |
| Hipmob Server | Live Chat for Mobile Applications | Chat | 0 |
| HipsterJesus | Lorem Ipsum generator tool | Tools | 0 |
| HireAbility ALEX | Résumé document processing and formatting service | Enterprise | 0 |
| HireRight | Human resources hiring screening service | Enterprise | 0 |
| Hisign | SMS text messaging service | Messaging | 0 |
| Historical currency converter | International currency conversion service | Financial | 0 |
| Historious | Website bookmarking tool | Bookmarks | 0 |
| Hit The Deals | Daily deals site | Shopping | 0 |
| HitchHiker Flight | Fare Query Service | Travel | 0 |
| Hitmeister | German shopping marketplace | Shopping | 0 |
| HIV Drug Research Center | Drug susceptibility prediction services for mutated HIV | Medical | 0 |
| Hive | File storage service | Storage | 0 |
| HM Revenue & Customs | UK tax document submission service | Government | 0 |
| HMMER | Protein sequence search and alignment service | Science | 0 |
| HNSearch | Hacker News search engine | News | 0 |
| HobbyKing | Radio control product dealer | Shopping | 0 |
| HockeyApp | App testing platform | Utility | 0 |
| HockeyStreams | Streaming hockey video service | Sports | 0 |
| Hoiio Fax | Fax service | Fax | 0 |
| Hojoki | Cloud application integration service | Tools | 0 |
| Home Energy Saver | Energy calculator tool | Government | 0 |
| Home Energy Scoring Tool | Home energy usage measurement tool | Tools | 0 |
| Home Hippo Property Portal | Online real estate portal | Real Estate | 0 |
| Home Theater Backdrops | Backdrop images and wallpapers | Media Search | 0 |
| HomeCook | Local food businesses community | Food | 0 |
| HomeFinder.com | Real estate listing service | Real Estate | 0 |
| Homes.com Neighborhood Envoy | Real estate profile and search service | Search | 0 |
| Hook Mobile | U.S. and Canada multimedia mobile messaging service | Messaging | 0 |
| HootSuite Engagement | Social media management service | Social | 0 |
| Hoovers | Corporate data services | Enterprise | 0 |
| Hopewiser Atlas | Address verification service | Shipping | 0 |
| Hoppio | Mobile backend platform | Backend | 0 |
| Hoppit | Personalized restaurant recommendations and photos | Food | 0 |
| HopStop | Mass transit and walking directions | Transportation | 0 |
| Hoptoad | Application error notification service | Tools | 0 |
| Hornsby Shire Council Application Enquiry | Local development application progress tracking service | Government | 0 |
| Hosca BankFinder | Find banks by zipcode | Reference | 0 |
| Hoseasons | UK vacation search and booking service | Travel | 0 |
| Hospital Compare | Hospital comparison service | Medical | 0 |
| HostBill | Manages invoices and payments | Payment | 0 |
| Hosting.com VMware vCloud Express | Online hosting and virtual cloud infrastructure service | Internet | 0 |
| Hostway FlexCloud | Cloud hosting services | Internet | 0 |
| HotelBeds | Travel accomodations service | Travel | 0 |
| HotelClub | Hotel booking service | Travel | 0 |
| HotelDo | Latin American hotel booking service | Travel | 0 |
| Hotelston | Online hotel and accommodation search and booking service | Travel | 0 |
| Hotfile | File hosting and sharing site | File Sharing | 0 |
| Hotwire | Travel deals and historical price data from Hotwire.com | Travel | 0 |
| Hotwire Hotel Shopping | Hotel shopping service | Travel | 0 |
| Hotwire Rental Car Shopping | Rental car shopping service | Travel | 0 |
| Houdini | Crowdsourced moderation services | Tools | 0 |
| HoundSleuth | Document index and search engine service | Search | 0 |
| Houston Metro | Transit information for Houston Metro | Transportation | 0 |
| How do you pronounce and use...? | Multimedia pronunciation dictionary | Dictionary | 0 |
| How'd They Vote? | Canadian Parliament voting records | Government | 0 |
| HP Cloud Block Storage | Cloud block storage service | Storage | 0 |
| HP Cloud CDN | Data delivery service | Storage | 0 |
| HP Cloud Compute | Virtual server management service | Internet | 0 |
| HP Cloud Identity Service | Cloud identity management service | Security | 0 |
| HP Imaging Cloud Photo Suite | Image Editing Services | Photos | 0 |
| HQCasanova Weekly CO2 | Atmospheric CO2 measurement service | Science | 0 |
| HQSMS | Bulk SMS messaging service | Messaging | 0 |
| Href.hu | Hungarian URL shortener | Tools | 0 |
| HRM Direct | HR recruiting service | Enterprise | 0 |
| HRSA Data Warehouse | Healthcare resources information database | Medical | 0 |
| htm2pdf | HTML to PDF conversion service | Office | 0 |
| HTML2PDF | HTML to PDF conversion service | Internet | 0 |
| HTTP Redirect Chain Enumerator | Search Engine Optimization tool | Utility | 0 |
| http.net DNS | DNS resource records management service | Internet | 0 |
| hu.ly | URL shorten tool | Internet | 0 |
| Hub9 CloudSearch | Cloud hosted search service | Search | 0 |
| hubermedia eTourist | German tourism information management service | Travel | 0 |
| Hubify | API and application development service | Backend | 0 |
| Hubsoft | Online order management service | Shopping | 0 |
| HubSpot Blog | HubSpot Blog Management Service | Blogging | 0 |
| HubSpot Events | Marketing events information service | Events | 0 |
| HubSpot Keywords | Marketing keywords data service | Internet | 0 |
| HubSpot Lead Nurturing | Marketing campaign leads service | Internet | 0 |
| HubSpot Leads | Internet marketing service | Enterprise | 0 |
| HubSpot Prospects | Marketing prospects information service | Internet | 0 |
| HubSpot Settings | Internet marketing service | Internet | 0 |
| HUD iMAX | Tenant and voucher data transmission service | Government | 0 |
| Huddle | Project management and collaboration service | Project Management | 0 |
| Human Information Project Data | User Information and Privacy | Security | 0 |
| Human.io | Micro-Apps for Android and iOS | Tools | 0 |
| Humanoid | Data analysis service | Tools | 0 |
| HummingBytes Q&A | Communication service | Telephony | 0 |
| Hunt Mobile Ads Ad Request | Spanish language mobile advertising | Advertising | 0 |
| HUSAR Bioinformatics Lab | Suite of bioinformatics services | Science | 0 |
| Hydro1K | Solar energy information service | Weather | 0 |
| HyperOffice | Online collaboration software | Enterprise | 0 |
| Hyperpublic | Geographic data collection service | Mapping | 0 |
| Hyves Data | Dutch social networking site | Social | 0 |
| I Need a Bargain | Shopping deal aggregator service | Shopping | 0 |
| I Rate My Day | Rate your day services | Social | 0 |
| I'm Human | Visual CAPTCHA service | Security | 0 |
| I'vRead | Social Reading Record | Social | 0 |
| i-Payout | Corporate payment service | Payment | 0 |
| i-Rent | Online property rental service | Real Estate | 0 |
| i.materialise | 3D model fabrication service | Utility | 0 |
| iabol Shipping Software | Shipping and delivery brokerage service | Shipping | 0 |
| IActionable | Gamification and Analytics Platform | Games | 0 |
| IBAN and BIC Conversion | IBAN and BIC code calculation and validation | Financial | 0 |
| IBAN Calculator | IBAN calculation and validation service | Financial | 0 |
| IBCP gBIO | Protein sequence analysis service | Science | 0 |
| IBIVU | Suite of bioinformatics services | Science | 0 |
| iBuildApp | Mobile application building platform | Tools | 0 |
| iCall | Calling, VoIP, and messaging service | Telephony | 0 |
| ICanLocalize | Translation service | Tools | 0 |
| iCasework UsefulFeedback | Customer support and contact tracking service | Enterprise | 0 |
| ICE Data | Global securities market data service | Financial | 0 |
| ICE Trading & Technology | Futures exchange | Financial | 0 |
| IceLogo | Peptide sequence alignment consensus visualization | Science | 0 |
| Icepay | Online payment service | Payment | 0 |
| IceRocket Blog Search | Real-time blog search service | Search | 0 |
| iCharts | Data visualization and sharing service | Utility | 0 |
| IconCMO | Church management service | Enterprise | 0 |
| IconFinder | Graphic icon and image search | Search | 0 |
| iContact | Email marketing service | Email | 0 |
| ICStats White Dealer | Dutch website traffic monitoring service | Internet | 0 |
| iCustomer Pulse | Customer satisfaction survey | Enterprise | 0 |
| iCyte | Resource and document saving service | Reference | 0 |
| Idealista | Spanish real estate portal | Real Estate | 0 |
| Idealo | UK price comparison service | Shopping | 0 |
| IdeaScale | Online Community Data Tools | Social | 0 |
| IdeaTree | Mind map service | Utility | 0 |
| Ideone | Online code compiler and debugger | Tools | 0 |
| Idescat Advance Release Calendar | Idescat publications calendar | Calendar | 0 |
| Idescat Catalan and Spanish Indicators | Economic indicator service | Financial | 0 |
| Idescat Municipality in Figures | Statistical information on Catalan municipalities | Government | 0 |
| Idescat Rectifications | Rectifications registry lookup service | Reference | 0 |
| iDigitalNet | Web hosting service | Internet | 0 |
| Idilia Sense Analytics | Assigns precise word senses to text | Tools | 0 |
| iDirectDebit | Payment processing service | Payment | 0 |
| IDlight | Public identity lookup service | Social | 0 |
| iDreamBooks | Book review ap |
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