About Tellagen

We build software for the hard days.

We’re a small, independent software team based in Tallinn, Estonia.

We built Tellagen because incident response is hard enough without chasing updates across tools or trying to reconstruct decisions afterwards.

The team behind Tellagen

Engineering experience

15+ years

Building and operating cloud software

Based in
Tallinn, Estonia
Company
Rabrat OÜ

Why we’re building Tellagen

An incident leaves a trail across chat, dashboards, and the people responding. Once it’s over, the team still needs to understand what happened and why.

We’re building Tellagen to keep that context connected while the response is happening—so the review starts with a record, not a reconstruction.

Make uncertainty visible

Keep confirmed facts separate from assumptions and open questions, so responders can see what still needs checking.

Design for things going wrong

Plan for errors, limits, and recovery from the start—not as an afterthought.

Keep responders in control

Automation and AI should bring useful context together and make the evidence clear. Responders decide what to do next.

How we work

Direct conversations

When you get in touch, you’ll speak with the people who design and build Tellagen.

Practical by default

We focus on real problems, avoid unnecessary complexity, and make improvements that help in day-to-day use.

Shaped by feedback

We listen to how teams use Tellagen and use that feedback to guide what we build next.

Get started

Run your next incident in Tellagen

Questions first? Write to us, and you’ll hear back from the people who design and build it.

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