
Companies House (UK government)
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Skip the manual setup — run this in your project and the wizard auto-detects your databases and APIs and connects them to PostHog.

Connect Companies House (UK government) to PostHog to sync your data into the PostHog data warehouse for analysis and modeling.
Sync UK company registry data for the companies you care about, keyed by company number.
Get a free API key by registering an application on the Companies House developer hub, then create a live key for the Public Data API.
Every table is fetched per company number, so start with the companies you want to enrich rather than the whole register. Companies House allows 600 requests every five minutes.
Configuration
| Option | Description |
|---|---|
API keyType: password Required: True | |
Company numbersType: textarea Required: True | One company number per line, or separated by commas. Numbers shorter than eight digits are padded with leading zeros. |
Linking Companies House (UK government) to PostHog
- Go to the Data pipeline page in PostHog
- Click New source and select Companies House (UK government)
- Fill in the required configuration fields
- Click Next, select the tables you want to sync, and then press Import