Companies House
UK company register and filing history
Statutory register of UK companies including water and sewerage undertakers, their group structures, ownership and published annual accounts.
Rights
- Licence
- Open Government Licence v3.0
- Commercial reuse
- Yes
- Redistribution
- Yes
- Derivative use
- Yes
- Attribution required
- YesContains public sector information licensed under the Open Government Licence v3.0.
- Terms last checked
- 23 August 2026
Access and coverage
- Publisher
- Companies House
- Geographic coverage
- United Kingdom
- Update frequency
- daily
- Formats
- json, csv, api
- Bulk download
- Available
- Registration required
- Yes
- Rate limit
- 600 requests per five minutes
- Cost to Hydrionis
- Free
- Domains
- finance, utility performance