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Open Data Finder

Companies House API

UK Companies House

Up· checked 14 Nov 2026, 01:55 UTCFree keyGovernment & law

All UK companies, directors and filings; free key via basic auth.

Details

Access
Free keyNeeds a free API key from the publisher.
Coverage
gb
Updates
daily
Formats
JSON
License
OGL-UK-3.0
Rate limit
600 req/5min
API base
https://api.company-information.service.gov.uk/
Tags
companies, officers, filings
Added
14 Nov 2026

Status checks

Up Last check 14 Nov 2026, 01:55 UTC, HTTP 200, 1,001 ms.

30-day uptime 100% (1 of 1 checks passed).

Last 1 checks, oldest first

  1. 14 Nov 2026, 01:55 UTC: up, HTTP 200, 1001 ms

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Companies House API: public data source · Open Data Finder