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Companies House API

UK Companies House integration for company data and filings

Overview

Companies House is the UK's registrar of companies, maintaining the register of all UK companies and LLPs. It provides one of the most comprehensive and accessible company data APIs in the world.

Identifiers

FieldDescriptionExample
gb_company_number8-character company number01234567

Prefixes indicate jurisdiction: SC (Scotland), NI (Northern Ireland), OC (LLP).

Legal FormDescription
LtdPrivate limited company
PLCPublic limited company
LLPLimited liability partnership
LPLimited partnership
CICCommunity interest company
UnlimitedPrivate unlimited company
GuaranteeCompany limited by guarantee
OverseasOverseas company registered in UK

Companies House API access requires an API key from your customer portal.

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