About Reykur

Finding the smoke
before the fire.

Reykur is built for finding the flaws in how a system is designed, while they are still cheap to fix.

Founded2026
HeadquartersZürich, CH
StageAlpha
EntityReykur AG
Who we are

A Swiss security company, built for modern architecture.

Reykur AG is a Zürich security company building continuous product security. We started it on a stubborn belief: security belongs in design, not in clean-up.

By connecting to the artifacts your team already has (tickets, design docs, IaC, and code), Reykur maps data flows, surfaces threats, and tracks controls as your systems evolve.

Oskar, Reykur CEO, in the Icelandic winter
Oskar - CEO
Elliot, Reykur CTO, looking out over the frost
Elliot - CTO
Vratko, Reykur CPO, by the falls
Vratko - CPO

Most breaches begin as design flaws no scanner will ever see.

Security is a design problem, not a patch problem. We catch it where it starts: in the architecture, before code ships, so the smoke never becomes a fire.

The nameIcelandic · noun
reykur./ˈreɪ.kʏr/

Smoke. The first sign of fire, long before the flames.

Catch the signal early
Where we are

The road so far

Milestones2025 — 2026
2025

First conversations

Founders connect through the Swiss DEF CON community.

2026 · Q1

Reykur AG founded

Swiss entity established in Canton of Zürich.

2026 · Q2

Closed alpha

Design partners onboarded, shaping the product with us.

We are here
2026 · Q4

Public launch

General availability for security teams and developers.

Coming soon
Ethos

The principles we build on

01

Radical transparency

We deliver the uncomfortable truth. Security cannot work without clarity. Attackers already know, so it’s time you did too.

02

Architectural integrity

We start from how the system fits together: what talks to what, where the data goes, and who trusts whom.

03

Proactive vigilance

The smoke is our signal. We act on the first signs, instead of waiting for an incident to prove the point.

Acknowledgments

Gratitude & community

The International Beer Bar

A place we call home

Much of the early work on Reykur took place within the walls of The International beer bar in Zürich. The staff and regulars backed us from the start, long before there was anything to show.

We owe them more than a few rounds.

In loving memory of Andy, whose warmth and spirit will always be part of this story.

DC4131 · DEF CON Switzerland

DC4131

The Swiss DEF CON chapter is where the three of us first met. The Swiss security community has given us honest feedback ever since.

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