EIN & Company Lookup
Know What Entity Is Behind an EIN — Before You Rely on What the Vendor Told You
When a TIN match fails, the question isn't just "did it fail" — it's "what's the correct name?" TIN Comply's EIN & Company Lookup searches our entity database: give it an EIN and get back the associated legal name, or give it a company name and get back the EIN. A fast independent reference point before a contract is signed, a payment is released, or a corrected W-9 is accepted.
What EIN & Company Lookup Does
IRS TIN matching tells you whether a name and TIN combination passes or fails. EIN & Company Lookup gives you a fast reference point for what the correct information is likely to be — by searching TIN Comply's entity database independently of what the vendor submitted.
Two directions. Two use cases. One lookup tool.
Look Up Name by EIN
You have the EIN. You want to know the legal entity name associated with it — not just what the vendor put on their W-9.
Use when: TIN matching returns a name mismatch and you want a reference point for what name to ask the vendor to confirm. Or when verifying a contract counterparty's legal name before execution.
Look Up EIN by Company Name
You have the company name. You want to find the EIN associated with that entity — to confirm what a vendor provided or fill in missing data.
Use when: A vendor record is missing a TIN, a vendor provided a TIN that doesn't match, or you want a reference point for the EIN associated with a known entity before onboarding.
How It Works
Enter EIN or Name
Submit an EIN to find the associated legal name, or submit a company name to find the associated EIN. Single lookup through the portal or at scale via API.
Search Entity Database
TIN Comply searches our entity database for matches between the submitted value and known entity information — returning the most likely associated name or EIN.
Confirm and Act
Review the returned entity information. Use it to correct a vendor record, inform a W-9 correction request, verify a contract counterparty, or confirm a payment recipient's identity.
See EIN Lookup in Action
Where EIN & Company Lookup Makes the Difference
After a TIN Match Fails
A TIN mismatch tells you something is wrong. EIN Lookup gives you a reference point for what's right — so correction outreach asks the vendor to confirm a specific name rather than sending a vague "your information doesn't match" message that produces low response rates and wrong corrections.
Before Contract Execution
Legal teams can check whether the entity name in a contract aligns with what's in our database for the EIN the counterparty provided — a quick reference check before the contract is signed.
Before High-Value Payments
Treasury teams can cross-reference a vendor's legal entity name against our database before releasing large ACH or wire payments — an additional identity reference point that doesn't rely solely on what the vendor submitted.
During Vendor Onboarding
Procurement teams can cross-reference a new vendor's legal entity name before creating the vendor master record — catching DBA names, entity suffixes, and legal name discrepancies at entry rather than at the first 1099.
M&A Due Diligence
Cross-reference acquired entity vendor master data by checking legal names against EINs in the target's vendor list — a fast data quality reference before the first consolidated filing.
Fraud Prevention
Cross-reference EINs against known entity names to flag ghost vendors, fabricated EINs, and entity impersonation attempts — an additional layer alongside TIN matching and OFAC screening.
How It Works Alongside TIN Matching
EIN & Company Lookup and IRS TIN Matching are complementary tools — TIN matching confirms whether a submitted name/TIN combination resolves against IRS records, and EIN Lookup gives you a fast reference point for what the correct information is likely to be.
| Scenario | TIN Matching | EIN & Company Lookup |
|---|---|---|
| Validate a vendor record before filing | Confirms name/TIN resolves | |
| Reference correct name after a mismatch | Returns failure result | Returns associated name for that EIN |
| Cross-reference counterparty identity | Checks name against EIN in our database | |
| Find missing EIN for a known vendor | Returns EIN by company name | |
| Confirm identity before high-value payment | Validates submitted data | Additional cross-reference layer |
Learn more about IRS TIN Matching
Find the Entity Behind Any EIN
Find the Entity Behind Any EIN
Search our entity database by EIN or company name to get a fast reference point for legal entity identity — and use it alongside IRS TIN Matching to confirm vendor data, inform correction outreach, and cross-reference counterparties before payments move.