We knew it was impossible.

We did it anyway.

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All began with painful truths no one wanted 
to face. However, like a beautiful pearl forming around a grain of sand, Gapfruit grew not from hype but pressure, clarity, and time.

init()
. . . . .
UNIX · 1971 · PROCESS 1

How we ended up
Doing the impossible

It combines uncompromising security 

and unprecedented scalability.
2012 - 2017
Where it started
Before Gapfruit, our founders built a military-grade OS for Swiss security authorities.
2018
Gapfruit is born
Instead of repackaging old ideas, we started from scratch. The goal is to build an OS that brings those same principles to the industry.
2020
Another step
After that, we started from scratch. The goal is to build an OS that brings those same principles to the industry.
CALL -151
APPLE II · 1977 · MONITOR MODE

We rethink the very foundation
Of operating systems.

Our team unites pioneers in OS design, cybersecurity, and hardware. Guided by world-class advisors and a bold vision, we’re building what others thought impossible — the next generation of operating systems for the electronics industry.
Christian Kielmann
CEO and Co-Founder
The upward trajectory of Christian's career unfolded during his five-year tenure as a project manager leading a formidable team of 25.
Sid Hussmann
CTO and Co-Founder
Sid is a technologist with broad systems knowledge across various domains and a deep understanding
in building secure products.
Roman Iten
Co-Founder and Senior Software Engineer
Roman is a software guru skilled in designing CI/CD systems, embedded software, the Genode OS Framework, C++, GitLab and Linux
Pirmin Duss
Co-Founder and Senior OS Engineer
Pirmin has a background in electrical engineering and more than 25 years’ experience in embedded
software development and systems engineering
Stefan Thoni
Co-Founder and Head of Security
Stefan is a virtuoso in cryptography, network security, security protocols, and the intricate landscape of security concepts and management.