Companies House Public Data API

API for accessing public data from Companies House including company profiles, officers, filings, and more.

Version 1.0.07 endpoints

Endpoints

GET/company/{company_number}getCompanyProfile

Returns basic company details, registered office address, status, and more.

Name	In	Required	Description
company_number	path	Yes	The unique number of the company.

Status	Description
200	Company profile found

GET/company/{company_number}/chargesgetCompanyCharges

Returns details of registered charges (mortgages or debentures) for a company.

Name	In	Required	Description
company_number	path	Yes	The unique number of the company.

Status	Description
200	List of charges

GET/company/{company_number}/filing-historygetFilingHistory

Returns filings made by the company (e.g., annual returns, changes of directors).

Name	In	Required	Description
company_number	path	Yes	The unique number of the company.

Status	Description
200	List of filings

GET/company/{company_number}/officerslistCompanyOfficers

Returns a list of current and resigned officers for a given company.

Name	In	Required	Description
company_number	path	Yes	The unique number of the company.

Status	Description
200	List of company officers

GET/company/{company_number}/persons-with-significant-controlgetPSC

Returns PSCs (people with significant control) registered against a company.

Name	In	Required	Description
company_number	path	Yes	The unique number of the company.

Status	Description
200	List of PSCs

GET/company/{company_number}/registersgetCompanyRegisters

Returns information about where company registers (e.g., members, directors) are kept.

Name	In	Required	Description
company_number	path	Yes	The unique number of the company.

Status	Description
200	Details of company registers

GET/search/companiessearchCompanies

Search for companies by name or number.

Name	In	Required	Description
q	query	Yes	The search term (e.g., company name or number).

Status	Description
200	List of matching companies