IRS Nonprofit Lookup

Verify any 501(c)(3) by EIN, search 1.9M IRS-registered nonprofits by name or location, and compare the largest charities in any city — no spreadsheet required.

Search and verify 1.9M+ IRS-registered tax-exempt organizations. EIN lookup, fuzzy name search, location browse, 501(c)(3) verification, and financial data. Updated daily from the IRS Exempt Organizations Business Master File.

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Organizations: 1,948,914

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Browse IRS-registered nonprofits — search by name, EIN, or state and open any organization profile.

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Verify 501(c)(3) status, compare assets, and research exempt organizations in a guided chat.

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Add IRS Nonprofit Lookup to Cursor, Claude Desktop, or any MCP client. Your agent can look up EINs, verify tax-exempt status, and search organizations without leaving chat.

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IRS Exempt Organizations Business Master File · updated daily