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?" Give TIN Comply an EIN and get back the associated legal name. 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.
Single lookups in the portal, or at scale via API and bulk file.
The possible EIN associated with the company name you entered. Use it to verify or correct vendor records.
Cross-reference against the vendor's W-9 Box 1 and Box 2 to guide outreach if there's a discrepancy.
Part of every TIN Comply plan from $20/mo — not a separate purchase. See pricing
One lookup tool, pointed whichever way you have data
IRS TIN matching tells you whether a name and TIN combination passes or fails. EIN & Company Lookup tells you what the correct information is likely to be — by searching independently of what the vendor submitted.
Look up the legal name by EIN
You have the EIN. You want 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 need a reference point for what name to ask the vendor to confirm, or when verifying a counterparty's legal name before signing a contract.
Look up the EIN by company name
You have the company name. You want the EIN associated with that entity — to confirm what a vendor provided, or to fill a gap in a record.
Use when a vendor record is missing a TIN, a vendor provided one that doesn't match, or you want a reference point for a known entity before onboarding it.
This is a reference tool, not an authority — and we'd rather say so plainly. EIN & Company Lookup searches TIN Comply's entity database. Results inform correction outreach and identity verification; they are not an official IRS response and don't by themselves establish compliance status. IRS TIN matching remains the authoritative check for filing purposes. Knowing which tool answers which question is the point.
Three steps, seconds each
Enter an EIN or a name
Submit an EIN to find the associated legal name, or a company name to find the associated EIN. Single lookup through the portal, or at scale via API and bulk upload.
Search the entity database
TIN Comply searches for matches between the submitted value and known entity information, returning candidates ranked by similarity — with the percentage shown on every row.
Confirm and act
Use the result to correct a vendor record, inform a W-9 correction request, verify a contract counterparty, or confirm a payment recipient's identity.
Multiple matches are normal. Common names — think "Summit Services" or "ABC Holdings" — return many distinct companies, each with a different EIN. Review the similarity percentages carefully and confirm you've selected the right legal entity before using the result.
An individual's name in the results isn't an error. It indicates a business EIN issued to a sole proprietor rather than an SSN. Many sole proprietors obtain an EIN specifically to protect their personal SSN while still meeting 1099 reporting requirements.
Six moments where knowing the real entity changes the outcome
After a TIN match fails
A mismatch tells you something is wrong. EIN lookup tells you what's right — so outreach asks the vendor to confirm a specific name instead of sending a vague notice that gets ignored and produces wrong corrections.
Before contract execution
Legal teams can check whether the entity name in a contract aligns with the EIN the counterparty provided — a quick reference check before signature rather than a dispute after.
Before high-value payments
Treasury can cross-reference a vendor's legal entity name before releasing a large ACH or wire — an identity reference point that doesn't rely solely on what the vendor submitted.
During vendor onboarding
Procurement can cross-reference a new vendor's legal name before the master record is created — catching DBAs, entity suffixes, and legal-name discrepancies at entry rather than at the first 1099.
M&A due diligence
Cross-reference an acquired entity's vendor master by checking legal names against EINs across the target's vendor list — a fast data-quality read before the first consolidated filing.
Fraud prevention
Cross-reference EINs against known entity names to flag ghost vendors, fabricated EINs, and entity impersonation — a layer alongside TIN matching and sanctions screening.
EIN Lookup and TIN Matching do different jobs
They're complementary, not competing. TIN matching confirms whether a submitted combination resolves against IRS records. EIN lookup suggests what the correct value probably is.
| Scenario | IRS TIN Matching | EIN & Company Lookup |
|---|---|---|
| Validate a vendor record before filing | Confirms the name/TIN resolves. Authoritative. | Not the right tool. |
| Find the correct name after a mismatch | Returns the failure, not the fix. | Returns the name associated with that EIN. |
| Fill in a missing EIN for a known vendor | Requires a TIN to check. | Returns candidate EINs by company name. |
| Cross-reference counterparty identity | Validates only what was submitted. | Independent reference against the entity database. |
| Establish compliance status for a 1099 | This is the authoritative check. | Supplementary only. |
Common questions about EIN lookup
What is an EIN lookup?
It finds the business entity associated with an Employer Identification Number, or the EIN associated with a business name. TIN Comply searches its entity database in both directions, giving you an independent reference for what a vendor's correct information is likely to be — rather than relying on what the vendor submitted.
Is an EIN lookup the same as IRS TIN matching?
No, and the difference matters. IRS TIN matching is the authoritative check — it confirms whether a name/TIN combination resolves against IRS records. EIN lookup is supplementary: it suggests what the correct value probably is.
Use TIN matching to determine compliance status, and EIN lookup to work out what to ask the vendor to fix.
Can I find a company's EIN for free?
Sometimes. Public companies disclose EINs in SEC filings, and the IRS Tax Exempt Organization Search covers nonprofits at no cost. For most private businesses there's no free public register — which is why third-party entity databases exist.
The practical difference is confidence: TIN Comply returns ranked candidates with a similarity percentage on each, so you can judge how sure to be rather than guessing.
Why does a search return multiple companies?
Because generic business names are shared across many distinct legal entities, each with its own EIN. A search for something like "Summit Logistics" can return dozens of separate companies. Results are ranked by similarity with the percentage shown, so you can confirm the right legal entity before using the EIN.
Why did an individual's name come back on an EIN search?
It means a business EIN was issued to a sole proprietor rather than to a trading name. Many sole proprietors obtain an EIN specifically so they can avoid handing out their personal SSN while still meeting 1099 reporting requirements. It's normal, and usually a sign the EIN is correct.
When should I use EIN lookup instead of just asking the vendor?
Use it before you ask. A generic "your information doesn't match" request produces slow responses and frequently wrong corrections. Looking up the registered name for their EIN first lets you name the specific value you need confirmed — which raises response rate and correction quality at the same time.
Are results an official IRS response?
No. EIN & Company Lookup searches TIN Comply's entity database and returns a reference point to inform outreach and identity verification. It doesn't by itself establish compliance status — IRS TIN matching remains the authoritative check for 1099 filing.
The rest of the vendor validation stack
Find the entity behind any EIN
Search by EIN or company name for a fast reference point on legal entity identity — and use it alongside IRS TIN matching to correct vendor data, guide outreach, and check counterparties before payments move.
Portal, bulk, and API all included.