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Feinsearch API

The service provides lookup access to a database of employer identification numbers (EINs) and related information for over 16 million suppliers doing business with U.S. companies. It allows for verification of tax reporting accounts for vendors, contractors, and suppliers to allow compliance with payment reporting requirements. Search options allow either individual or batch lookup to retrieve EIN values or verify those supplied by vendors.

API methods support search against a database of tax-paying companies with returned data specifying EIN or Tax ID number, primary industry SIC code, phone and fax numbers, and verified addresses. The API also provides operating information like the year the company started, its employee head-count, and estimates of sales and revenue.

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Feinsearch: Highlights

U.S. employer identification number service
Data Formats
API home
http://www.feinsearch.com/CorporateFeatures.a ... 

Feinsearch: Specifications


Client Install Required

Signup and Licensing

Signup Requirements
Yes, register account  
Developer Key Required
Account Required
Commercial Licensing
Non-Commercial Lic.
Data Licensing
Usage Fees
Program Fees
Certification Program
Usage Limits
Terms of Service


Authentication Model
SSL Support
Read-only Without Login


Vendor API Kits
Community API Kits
API Blog
Site Blog
API Forum
Developer Support
Console URL

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