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EIN Lookup

EIN Lookup & EIN Reverse Services

Find and verify EINs in seconds. Search 20+ million verified EINs to reduce filing errors, speed up vendor onboarding, and keep your compliance data audit-ready.

Real-time EIN search
Instant reverse EIN lookup
Find businesses by company name or EIN
Get Started from $25 Book Demo
★★★★★ 4.9 · Trusted by 10k+ teams
EIN Lookup
Search 20M+ verified records
Apple
Apple Inc.
EIN ••-•••4110 · Cupertino, CA
Verified
Apple Leasing Inc.
EIN ••-•••7821 · Austin, TX
Verified
Apple Hospitality REIT
EIN ••-•••3692 · Richmond, VA
Verified

Trusted by leading brands

Why EINsearch

Faster EIN checks with verified accuracy

EINsearch gives finance, procurement, and tax teams a faster, more accurate way to verify business identity. With 20+ million verified EINs on demand, you can look up vendors, contractors, and clients in seconds, reducing filing errors and strengthening your compliance program.

  • 20M+ EIN database coverage
  • Real-time IRS validation
  • Sub-second lookup speed
  • Daily refreshed records
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Watch: EIN Lookup in under 60 seconds
Developer Ready

EIN Lookup API for automated verification

The EIN Lookup API lets your team automate EIN verification at every critical moment: customer onboarding, invoice processing, and tax filing. It connects you directly to 20+ million verified EINs, so you can embed accurate compliance data into the systems your team already uses.

Real-time EIN search endpoints
Automated lookups for compliance workflows
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EIN Lookup API Response
{
  "company_name": "Apple Inc.",
  "ein": "**-*******",
  "entity_type": "Corporation",
  "state": "California",
  "irs_verified": true,
  "match_score": 0.99,
  "last_verified": "2026-07-24"
}
200 OK — Verified match
Accuracy You Can Trust

Prevent EIN errors before they become problems

An incorrect or unverified EIN can mean rejected filings, P-Notices from the IRS, and exposure to penalties. EINsearch gives you access to validated EINs, so errors get caught before they reach a filing, cutting down on year-end cleanup and keeping your vendor and contractor data clean.

Detect EIN mismatches before filing submissions
Validated business data
Coverage across all US states
Apple Inc.
EIN **-*******
Verified
Acme Supplies LLC
EIN **-*******
Review
Global Trade Co.
EIN **-*******
Mismatch
Walmart inc.
EIN **-*******
Verified
Get Started

Start looking up EINs in minutes

Every EIN in our database has been validated, so you get accurate results from the moment you search. Faster lookups, more confident decisions, and the support of a team that knows compliance inside out.

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Business Benefits

Quickly Find Missing EINs

Quickly Find Missing EINs

Cut verification time across every team that touches vendor data. Utilizing the EINsearch API eliminates the need for manual lookups and duplicate data entry, giving accounts payable, tax, and compliance workflows a more automated and seamless experience. Suppliers move through onboarding faster and without bottlenecks.

Reduce Compliance Risk Exposure

Lower your compliance risk by catching errors before they reach a filing. Verified EINs prevent the 1099 rejections, CP2100 and CP2100A notices, and penalties that come from inaccurate or outdated vendor data.

Improve Data Clarity and Confidence

Every search returns clear, structured results from a validated EIN database. Each output is straightforward to interpret and consistently reliable, giving your team the clarity to make compliance decisions with speed and confidence.

Validated EIN Database

Each EIN in our database is verified, helping ensure reliable search results and accurate business identification.

Continuously Enhanced

Our database is continuously enhanced to keep compliance data accurate and current. Records are added on an ongoing basis, so your team gets reliable EIN data when you need it.

20M+ Verified Records

Over 20 million verified EINs make EINsearch one of the largest commercial EIN databases available. Finance, tax, and compliance teams across the country rely on it for accurate data on US businesses of every size and sector.

Customer Feedback

Also Explore

Complete your compliance workflow

EIN Lookup is one piece of a complete compliance program. Pair it with the rest of the EINsearch platform to cover onboarding, reporting, and ongoing vendor management.

TIN Matching
Validate tax ID numbers against IRS records in real time. Catch mismatches before filing 1099s, prevent B-Notices, and keep your vendor data aligned with federal reporting requirements.
Learn more
Batch TIN Matching
Verify thousands of TINs in one upload. Built for AP teams handling high vendor volumes, year-end 1099 prep, or annual compliance reviews.
Learn more
OFAC Watchlist
Screen vendors and businesses against OFAC and global sanctions lists. Identify high-risk entities at onboarding and stay compliant with ongoing monitoring requirements.
Learn more
FAQs

Frequently asked questions

Have a question not answered here? Our team is available by phone, email, or live chat.

Contact support

 You can search EINsearch using either a company’s name or the EIN itself. Type in a company name to find the associated EIN, or enter an EIN to find the business it belongs to (a reverse lookup). EIN Lookup is designed to help tax professionals, accounts payable teams, and financial institutions find verified business information quickly.

A lookup is used across a wide range of teams and industries. Finance and accounting professionals rely on it to verify vendor and contractor details before processing payments. Procurement and vendor management teams use it to confirm business identities during onboarding. Compliance and risk officers use it for KYB checks and due diligence before engaging with a new entity. Payroll and tax professionals use it when filing for clients and preparing 1099s. Banking and financial services teams use it to verify business customers at onboarding and reduce fraud exposure. Technology teams integrate it directly into their workflows via API to automate verification at scale.

When you perform a reverse EIN lookup, it means you already know the 9-digit EIN number and want to verify what company it belongs to.

EIN Lookup helps you find a business’s EIN from its name, or verify the business behind an EIN you have on file. TIN Matching confirms that a name and Taxpayer Identification Number combination match what the IRS has on file. In short: A Lookup helps you find or identify a business, while TIN Matching confirms tax ID accuracy against IRS records.

An EIN Lookup API is a software interface that allows applications to automatically retrieve Employer Identification Number (EIN) information without requiring users to perform manual searches. Instead of looking up businesses one at a time through a website, an API enables your software to send requests and receive EIN data instantly, making it ideal for high-volume business verification and onboarding workflows.

 

With access to more than 20 million verified EINs, the EINsearch EIN Lookup API integrates seamlessly with your existing systems, helping you automate business verification, vendor onboarding, compliance, and tax-related processes. The API delivers fast, reliable access to one of the largest commercial EIN databases available.