HelmSentry
PSC alerts for every entity that matters.
Daily alerts from Companies House when a person or company on your watchlist has a PSC change — appointed, ceased, or control updated.
What your alert feed looks like
Every morning, changes from the latest Companies House snapshot land in your inbox and dashboard — graded by match confidence.
Today's alerts 3 new
12 May 2026 · snapshot loaded 07:14 UTCJames Whitfield
Hargreave Capital Partners Ltd · 09341872
Control: 25–50% voting rights
Matched on
Priya Nair
Meridian Holdings Group Ltd · 11087453
Control: 50–75% shares
Matched on
Thomas Brennan
Stonegate Advisory Services Ltd · 08829014
Control: 75%+ voting rights → 50–75% voting rights
Matched on
Sample data — not real Companies House records.
Everything you need to monitor PSC changes
Purpose-built for compliance teams who can't afford to miss a filing.
Person and company monitoring
Watch individuals to catch new PSC appointments. Watch companies to track every PSC change at a portfolio or client firm.
Daily Companies House sync
We ingest the official CH bulk snapshot every day and email you the day a change appears.
Confidence-tiered alerts
Every alert is graded on the strength of the match - name, date of birth, address, nationality.
Company-level watchlist
Add any UK company by name or number. Every PSC appointment, cessation, or control change at that company triggers a HIGH-confidence alert.
CDD review log
Record a confirmed, rejected, or unsure outcome on every alert. Each decision is timestamped and retained — a review log you can use as evidence of ongoing customer due diligence.
Simple, transparent pricing
Start free. Upgrade for unlimited history reports and a 100-entry watchlist.
Free
£0 forever
- Up to 5 watchlist entries (persons or companies)
- 1 person + 1 company history report per month
- Daily email digest
- HIGH/MEDIUM/LOW tiering
Pro
£79 per month
- Up to 100 watchlist entries (persons or companies)
- Unlimited person & company history reports
- Daily email digest
- HIGH/MEDIUM/LOW tiering
Frequently asked questions
Where does the data come from?
Companies House PSC bulk snapshot, refreshed daily.
Can I watch a company instead of a person?
Yes. Add any UK company by number or name and you'll receive a HIGH-confidence alert for every PSC change at that company — appointments, cessations, and control updates.
How accurate is the monitoring?
Change detection is exact — Companies House assigns a stable ID to each PSC record and we track it directly, so appointments, cessations, and control changes are never missed or doubled up. The fuzzy part is person matching: when you watch a name, we compare it against PSC records using name, date of birth, nationality, and address, and grade each alert High, Medium, or Low based on which signals matched and which disagreed. You'll see the full signal breakdown on every alert.
Is this AML-compliant?
We surface PSC changes; you make the compliance decision. Record a confirmed, rejected, or unsure outcome on every alert — a timestamped review log, retained as evidence of ongoing customer due diligence.
Can I export alerts?
On the roadmap.
Cancellation?
Self-serve via Stripe Customer Portal, anytime.