Open data on Brazilian companies

Around 67 million companies registered with the Brazilian Federal Revenue Service (Receita Federal), their partners, establishments and tax regimes — pulled straight from the official open data releases, updated monthly.

Petrobras (example) JSON API

Lookup types

Company by tax ID (CNPJ) /en/cnpj/<cnpj> Legal name, status, partners, establishments and CNAE codes. State /en/estados/<UF> Companies registered in each of the 27 federal units. Economic activity (CNAE) /en/cnaes/<code> Companies grouped by economic-activity code. Municipality /en/cidades/<ibge> Companies registered by IBGE municipality code.

Examples

Petróleo Brasileiro S.A. — Petrobras tax ID 33.000.167/0001-01 · federal mixed-economy company
Banco do Brasil S.A. tax ID 00.000.000/0001-91 · public commercial bank
Software development companies with primary CNAE 6202-3/00

Source and refresh cadence

Everything comes from the CNPJ open data published by Brazil's Federal Revenue (Receita Federal). The full database is re-imported on each monthly RFB release — nothing is inferred, fabricated, or merged with private sources. More detail on About / Sources.

Other surfaces

For AI agents and data pipelines, the same content is available as lightweight Markdown at md.dadosbrasil.net (~3× fewer tokens) and as a JSON API at api.dadosbrasil.net.

Data sourced from Brazilian public records and organised for human and API consumption. For legal, tax or regulatory decisions always consult the official source.