Companies House API
company-information.service.gov.uk
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Overview
Researched from the vendor's own pages; every fact links to its source and the day we checked it.
Executive agency of the UK Department for Business and Trade. The Companies House Public Data API returns live company profiles, registered office addresses, officers, filing history, charges, insolvency, PSC data and search over companies and officers. API key sent via HTTP Basic auth; OAuth 2.0 for filing functionality.
Company
Verified- Legal name
- Companies House
- Headquarters
- Not confirmed
- Founded
- Not confirmed
- Employees
- Not confirmed
- Ownership
- Government
- Status
- active
- Kind
- Government source
- Support
- communitydocs
API
Verified- Access
- Self-serve API
- Style
- REST
- Auth
- HTTP Basic, OAuth 2.0
- Base URL
https://api.company-information.service.gov.uk- Features
- Bulk —Async —Webhooks —MCP —Sandbox —
- Rate limit
- 600 requests within a five-minute period per application; 429 for the rest of the window
- Docs
- Reference
Pricing
Unverified- Model
- Not confirmed
- List prices
- Not published
- Free tier
- Not confirmed
- Checked
- Sep 29, 2026
Compliance
- SOC 2
- Not confirmed
- GDPR
- Not confirmed
- CCPA
- Not confirmed
- DPA
- Not confirmed
- Resale / storage
- Unknown until a written agreement says otherwise
Data
Verified- Data points
- company profileofficersfiling historychargesinsolvencypersons with significant control
- Origins
- Government
- Geography
- United Kingdom
- Refresh
- Live and real-time (per Companies House)
- Matching
- Not confirmed
- Claims
- None stated
Relationships
- Integrations
- Not confirmed
- Alternatives
- None named by the vendor
Sources (1)
- Companies House Developer Hubchecked Sep 29, 2026
Placement in the Grid
Where this vendor sits on the GridRouter Grid in each category it serves. No vendor pays for placement.
API
The vendor's OpenAPI document as stored in the catalog, its operations, and the rate limits it publishes.
Rate limits
600 requests within a five-minute period per application; 429 for the rest of the window Without a published limit GridRouter paces conservatively (1 request per second).