Company data API for SaaS: onboarding forms, invoicing and CRMs

A customer types a tax number or the first letters of a name; your form fills in the legal name, legal form, status and address from the official register. Spain (NIF/CIF), France (SIREN/SIRET), the United Kingdom (Companies House number), Ireland (CRO number), Poland (KRS/NIP/REGON), Norway (organisasjonsnummer), Finland (Y-tunnus), Sweden (organisationsnummer), Belgium (enterprise number, KBO), Croatia (MBS/OIB), Denmark (CVR number), Estonia (e-Business Register), Slovakia (RPO), Switzerland (Zefix), Latvia (Register of Enterprises), Cyprus (DRCOR) Romania (ONRC), Lithuania (JAR), Canada (Corporations Canada), Australia (ASIC and the ABR), Japan (National Tax Agency), Israel (Corporations Authority), Singapore (ACRA), Colombia (RUES), Taiwan (GCIS), the Czech Republic (Ministry of Justice and the Czech Statistical Office) and Brazil (CNPJ), Argentina (CUIT), Germany (LEI-registered entities and energy-market register companies) and the United States, behind one REST key and one response schema.

What the lookup gives your product

Exact match on the identifier: one parameter per country, or company_number resolved per country.
Autocomplete by name: fuzzy, normalised search ranked by a match score, so a typo still lands.
The fields a form needs: legal name, legal form, status, registered address and postal code, activity code, founding date, and where published the share capital and VAT number.
One schema for every country: the country is a parameter, adding a market is a dropdown entry.
Status you can act on: active, dissolved, in liquidation, struck off, in insolvency, as the register says it, plus registry-compliance flags where a company has stopped filing.
Priced for products: public tiers from EUR 0 (500 credits over 14 days, card required, nothing charged for 14 days) to EUR 99.99 a month; self-serve, no annual lock-in.

Autocomplete in one endpoint

Your server keeps the key and proxies GET /companies/search?name=… or ?company_number=… with a country; the form calls your server and fills its fields from the chosen suggestion. Natural persons are never returned.

Try it without a key

The free lookup tools on this site run the same call: SIREN, NIF, Companies House number, KRS, CRO number and organisasjonsnummer, Y-tunnus, organisationsnummer, MBS/OIB, enterprise number and CVR number.

Billing and invoicing software validating a customer before it invoices: see For invoicing & e-invoicing software.