Know the moment a company you're watching changes
Company Watch tracks the UK companies you choose and alerts you the moment something changes - new filings, director and ownership changes, charges, insolvency events, and more. Pick your companies, choose what changes you are interested in, and get notified of real-time updates by webhook or by polling, built on the free, public UK company register.
Free tier: up to 10 companies. Test instantly against the real pipeline with the simulate endpoint.
Every type of change that matters, in one feed
Choose which of these you want to hear about, either for your whole account or for individual companies for finer-grained control, and you'll only ever be notified about what you asked for.
Company details
Changes to a company's core record - registered name, address, status, or accounting dates.
Filings
New documents filed at Companies House - confirmation statements, accounts, and more.
Directors & officers
Officers appointed, resigning, or with their details changed.
Charges
New or satisfied charges against a company - a key signal for lenders tracking existing security.
Insolvency
Administration, liquidation, and other insolvency proceedings opened or updated.
People with significant control
Individuals or entities with significant control added, removed, or changed.
Control statements
Statements about who controls a company or when none is identified.
Exemptions
Changes to a company's exemption from disclosure requirements.
Development teams needing to monitor changes to a list of companies
Company Watch is not a general company-lookup tool. Instead, it is a lightweight API product for teams to connect to their in-house or commercial system platforms so that real-time updates to monitored companies are delivered directly to their systems for processing.
Commercial lending & asset-based finance
Ongoing covenant monitoring - charges, insolvency filings, and director changes on borrowers.
AML / KYC ongoing monitoring
UK Money Laundering Regulations require ongoing monitoring of clients, not just onboarding checks.
Trade credit & invoice finance
Early warning of insolvency risk on the debtor companies you're already extending credit to.
Supply chain & vendor risk
Distress signals on key suppliers, surfaced before they show up as a delivery problem.
VC / PE portfolio monitoring
Lightweight automated alerts on filings across every company in the portfolio.
Commercial insurance underwriting
Material changes on policyholder companies, without a manual re-check cycle.
Four steps, no dashboard required to get started
Sign up and get an API Key
Select which types of change to watch for - filings, officers, charges, insolvency, and more
Add the companies you care about
By Companies House number, in a single API call.
Get notified your way
A signed webhook the moment something changes, or poll a cursor-based endpoint on your own schedule.
Test in minutes
The simulate endpoint fires a real event through the real pipeline, so you can verify your integration before you commit to anything.
The raw stream doesn't know what you care about
Companies House publishes nine separate streams, each requiring its own permanent open connection, together covering every change made to every company on the register. Watching even a handful of companies means holding every one of those connections open and discarding almost everything that comes through each - and building your own reconnect and backoff logic for when a connection drops.
Start free. Pay only when you're watching more than 10 companies.
For an active lending or KYC portfolio.
SubscribeTry it against the real pipeline, free
No sales call, no procurement process — sign up, add a company, and fire a test event in the next five minutes.
Start free - no card required