Companies House
Operator: Companies House (UK company registrar), United Kingdom
Official UK company register with company data, officers, filings and annual accounts.
Companies & Business
Product
Companies House: Find and update company information
Availability and source date
Active
As of: 15 October 2026.
No functionality test has been performed.
Use in OSINT research
Links UK companies to their officers and filed documents. Previous names and filing histories help establish chronology.
Queries
| Input | Result | Result type |
|---|---|---|
| Company / organisation name + Company registration number | Company record with status, registered office, filing history and documents. | Retrieved |
| Person name | Records of current or former company officers and their appointments. | Retrieved |
Features
- Searches by company name, registration number and officer name.
- Shows company status, registered office and activity code.
- Opens filed documents and annual accounts.
- Shows current and former officers.
- Emails notifications of new filings when a company is followed through an account.
Categories
- Companies & Business
- Registers
Coverage
Geographical coverage
United Kingdom
Dataset
Public Companies House register data on UK companies and other legal entities registered there.
Access
Requirements
Register search without an account. Email notifications and the API require an account.
Export
Individual filed documents for download; structured data mainly as JSON through the API.
Provider
Companies House (UK company registrar)
Country of establishment
United Kingdom
Interfaces
API
Available. Free REST API with an account and API key. Standard limit: 600 requests in five minutes.
MCP
Not documented. Not specified in the provider information reviewed.
AI agents
Not documented. Not specified in the provider information reviewed.
Usage note
The web search is not intended for bulk retrieval. The API and separate data products are available for structured access.
Legal note
Limitations
- Register information comes from filings and may contain errors.
- The web search is not intended for bulk retrieval.
- Certified copies and certain historical documents may incur charges.
Guides and practical reports
Official · Searching the Companies House register
Companies House · 06/2026 · EN
Explains register data, free documents and notifications of new filings.
External · Companies House: A Short Guide
Bellingcat Investigation Team · 06/2017 · EN · Independent
Demonstrates research into filings and participants using a case study. The interface and legal context date from 2017.