Brazilian Company Lookup (CNPJ)

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check company CNPJ registration status Brazil 2026

CNPJ lookup, company registration status and details

Correct qualification of legal entities in petitions requires the company name, CNPJ and registered address per Federal Revenue data. This tool queries those details in real time.

Available data in the lookup

Company name, trade name, registration status (Active/Closed/Suspended/Unfit/Null), main CNAE, full address, share capital, QSA and opening date.

Practical use

Qualification for petition

Input: CNPJ da parte ré
Expected output: Razão social, endereço, sócios, prontos para copiar na inicial

Confirm data directly with the company for more formal documents (contracts).

Safe use

Input: context + tool result
Expected output: interpreted with limits and next steps

Use the result as technical or educational support, keeping the tool limits explicit in the workflow.

Full tool FAQ

How does CNPJ validation work?

Before any lookup, the tool calculates the last two digits (check digits) from the first twelve, using a weighted algorithm with modulo 11. If the digits provided do not match the calculated ones, the CNPJ is treated as invalid and the query is not even sent. Validation accepts both the numeric CNPJ and the new alphanumeric CNPJ from the Federal Revenue Service (letters in the first 12 positions, check digits always numeric). Keep in mind that a formally valid CNPJ merely follows the mathematical rule of the digits, it does not mean the company exists, is active, or is trustworthy.

Is BrasilAPI data always up to date?

Can branches be looked up?

Is the queried CNPJ stored?

What does 'ATIVA' registration status mean?

What is the CNPJ used for in legal documents?

Does a CNPJ lookup replace due diligence?

What appears in the list of partners?

Frequently asked questions

Is the CNPJ lookup confidential?

Yes. The CNPJ is sent only to the internal proxy; never to analytics or storage. The returned data is public per the Federal Revenue.

Does this page replace official or professional review?

No. It helps explain the scenario and use the tool more safely, but real decisions should consider official sources, full context and qualified guidance when needed.

Next steps