Companies House
LiveLast verified 24 Sept 2026
UK company registry lookups: officers, filings, addresses and status for registered companies.
Example request
curl -s -u "$API_KEY:" 'https://api.company-information.service.gov.uk/company/00000006'
Free tier, in plain English
Free with a registered API key; a rate limit exists but the specific number wasn't found on the pages checked.
Alternatives in Open Government Data
API ColombiaColombia reference data: departments, cities, tourist sites, airports, presidents and more.api.data.govOne free key unlocks 450+ US federal agency APIs (NASA, NOAA, FDA, and more).FreeApiverketSingle API for 35+ Swedish agencies: weather, statistics, transport, companies, parliament and more.FreemiumArgentinaDatosArgentine holidays, inflation, interest rates, and Congress voting data from public sources.FreeAyes and NoesUK MPs, parties, Commons voting records and Early Day Motions, built on official Parliament data.Free