About

Built for device makers without a product security team.

Big OEMs have a PSIRT: people whose job is to notice an exploited vulnerability, decide whether it matters, and report it on time. Most makers with 5 to 200 staff don’t, and since 11 September 2026 the EU expects the same 24-hour response from both. Warnbell exists to close that gap.

[Your name]

Founder, Sheffield

[https://www.linkedin.com/in/your-profile]

The founder

Warnbell is founded and built in Sheffield, UK, by an engineer who has built the parts of connected products where security problems actually show up:

IoT gateway integrations

connecting fleets of devices to the systems that manage them

Device data ingestion

getting telemetry off hardware reliably and making sense of it

Real-time systems

over WebSockets and server-sent events

Hardened Go services

with TLS, OAuth and rate limiting

That’s the background Warnbell is built on: read-only connectors into device fleets, careful handling of other people’s data, and systems that have to work at 02:00 on a Saturday.

How we work

  • Honest about our stage. We’re pre-launch and looking for our first design partners. You won’t find customer logos or testimonials here, because we don’t have customers yet.
  • The maker decides. Our AI drafts and recommends. You approve every report, and every claim links to its evidence.
  • Independent. Warnbell isn’t affiliated with or endorsed by ENISA or the European Union.

Company

Warnbell Ltd [placeholder — registered company name]
Company number: [placeholder — Companies House number]
[placeholder — registered office address], Sheffield, United Kingdom
info@warnbell.com

Design-partner programme

Become one of five design partners.

Help shape Warnbell while it’s being built. You get the product early at £99/month, and the founder on the other end of the line. We get your honest feedback.

Apply for a place Check your readiness first

Design partner pass

Nº 01–05

£99/ month

Term
First 6 months
Includes
Growth plan, as it ships
Direct line
To the founder
In return
Honest feedback

Places open