Enter the legal company name
Use the entity name rather than a product, storefront, or website name whenever possible.
US EIN LOOKUP
EIN lookup by company name.
Search for a business EIN by company name and US state. Compare the legal entity, address and registration details before using an available tax ID.
START WITHUS legal company name + optional stateREVIEWMatched US company + available EIN
Reviewed
THE PRACTICAL ANSWER
How do you look up an EIN by company name?
Search the US legal business name, add a state when known and compare the returned entity's registration details. VATFind shows an Employer Identification Number, or EIN, when it is supplied in the matched company record. Use the legal name rather than only a storefront name, and distinguish the federal tax ID from a state registration number. An EIN lookup helps research a business identifier; it does not provide IRS TIN Matching.
- A vendor profile is missing an EIN but contains the legal company name.
- Several LLCs or corporations share a similar name across different states.
- You need to compare a source-reported EIN with a W-9 or onboarding document.
EIN SEARCH BRIEF
Separate the legal company from the tax-ID field.
Build a reviewable search brief before choosing a record. This browser-local checklist sends and stores no company information.
THE WORKFLOW
Find the EIN associated with the US company
Add a state when useful
The optional state field helps narrow similarly named companies across US jurisdictions.
Match the company record
Compare the legal name, state, registration number, address, and company status.
Review the reported EIN
Treat the EIN as a field in the matched company record, then compare it with documentation from the business.
WHAT VATFIND DOES
VATFind resolves the US company before returning its EIN.
VATFind uses the legal name, state and company details to identify the correct US entity, then returns the EIN or tax identifier associated with that company record when available. The result can be compared with the vendor’s W-9 or onboarding documents.
Evidence meaning: a verified association means the submitted VAT number or EIN is linked to the returned company record. It is not, by itself, confirmation of current tax-registration status, tax compliance or approval of the wider transaction.
For API checks, use vat_number outside the US and tax_identifier for US EINs. Optional fields can be absent when a source does not provide them.
- 01US legal company name
- The entity returned by the company-data source.
- 02EIN or tax ID
- Shown only when the matched source record supplies it.
- 03State and address
- Context for distinguishing companies with similar names.
- 04Registration number
- A state company identifier, kept separate from the federal EIN.
- 05Source and retrieval time
- Evidence context for the lookup result.
CHOOSE THE RIGHT APPROACH
Choose the right route for an EIN search
Another company's EIN
Use its legal name and state to research the entity. Compare an available EIN with documentation supplied by the business.
Your own missing EIN
Check your IRS notice, prior tax returns or business bank records. Follow the IRS recovery process if it is still missing.
A name and EIN combination
Use company-record matching for entity context. An IRS name/TIN match is a separate service with its own access requirements.
CONTROL OWNERSHIP
Give each team one clear responsibility.
A reliable workflow names who owns the input, who interprets the company evidence and who makes the wider decision. That separation prevents a data result from becoming an unexplained approval.
US vendor operations
Resolve the exact state-registered entity before using a source-reported EIN.
Accounts payable
Compare the company result with the vendor's current W-9 or onboarding evidence.
Master-data management
Keep the federal EIN separate from state company identifiers.
DECISION DESIGN
Define the evidence and action at each stage.
| Stage | Evidence to retain | Controlled action |
|---|---|---|
| Identify | Legal company name, state when known, address and legal suffix. | Search for the registered business rather than a storefront or product brand. |
| Disambiguate | State, registration number, legal form and registered address. | Separate similarly named LLCs and corporations before opening a record. |
| Compare | Source-reported EIN and the document supplied by the business. | Accept, question or leave the field unresolved according to the evidence available. |
EXAMPLE WORKFLOW
Two US vendors have nearly identical names
A vendor file contains two similarly named LLCs in different states. Search the full legal name and narrow the state before comparing the address and state registration number. Keep each legal entity as a separate vendor candidate. An EIN found for one LLC should not be copied into the other record because their names resemble each other. If the selected record omits the EIN, request the vendor's current documentation rather than filling the field from an unrelated search result.
Try this company lookupIMPLEMENTATION CHECKLIST
Business EIN lookup checklist
- Ask for the formation or registration state when the name is not unique.
- Preserve punctuation-insensitive search without discarding legal suffixes.
- Label EIN and state registration number as different identifier types.
- Do not represent a company-data match as IRS confirmation.
- Keep documentation from the business beside the selected company record.
WHAT TO MEASURE
Prove the control is useful.
Track operating quality rather than claiming that a company match guarantees the downstream outcome.
- US searches narrowed with state context
- Duplicate-name cases resolved correctly
- EIN fields supported by both entity and document evidence
READ THE RESULT CORRECTLY
An EIN lookup is not IRS verification.
The IRS does not provide a universal public reverse directory for private-company EINs. VATFind searches company data and must not be read as an IRS TIN Match, confirmation of tax compliance, or proof that a person is authorised to use the EIN.
Review data and limitationsFREQUENTLY ASKED QUESTIONS
Questions about finding an EIN
Can I look up a company EIN by business name?
VATFind can return a source-reported EIN when the company-data source matches the company and supplies that field. Coverage varies, so a missing EIN is not proof that the company has none.
Is an EIN the same as a state registration number?
No. An EIN is a federal tax identifier. A state registration number identifies a company in a state registry. VATFind labels them separately.
What does a nine-digit EIN format tell me?
It means the input follows the expected EIN structure. VATFind then searches for an associated company record.
How should I confirm a vendor’s EIN?
Compare the company-record result with current documentation supplied through your onboarding process. Use an authorised IRS service only if your organisation is eligible and the workflow requires it.
Can I search for an EIN without knowing the state?
Yes. Start with the legal business name and United States as the country. Adding a state helps distinguish similar companies. Confirm the registration details before using a returned EIN.
What if I am trying to recover my own business EIN?
First review the IRS notice issued when you applied, prior business tax returns and your bank records. The IRS provides a recovery route for people authorised to receive the number. VATFind's company search is a different process.
Sources and further reading
IRS: recovering a lost or forgotten EIN The IRS lists recovery steps for an authorised person seeking their own business EIN.