We are the space company pioneering the next generation of in-space transportation.

From Earth orbit to the lunar surface, we are building high-performance spacecraft powered by detonative propulsion, laying the foundations for a thriving economy beyond Earth.

We are the Swiss in-space logistics company focused on advancing orbital mobility and lunar exploration.
By challenging conventional propulsion systems with rotating detonation-based technology, we are developing a new generation of spacecraft to transport payloads between orbits, reach new destinations and access the lunar surface.

✶ Our Founders

Victor Elliesen

Patrick Egli

Simi Y. Wespi

Rick Röthlisberger

Photo: Robin Wyss

Built by Pioneers

We don’t believe in waiting for the future. We build it. Our culture is shaped by ownership, curiousity, and an obsession with making things happen. Small teams, big responsibilities, and the freedom to challenge what’s possible.

Join The Team

  • Aquired Assets of the Company Ethinox

  • Four founders. Shared leadership.

  • Engine 1.0

  • Europe’s first commercial RDRE hotfire

  • Reveal Event 2026

✶ Our Origin

Alpine Roots.
Stellar Ambition.

Inspired by the Edelweiss, the iconic flower of the Swiss Alps, Stellar Alpina takes its name from stella alpina, Italian for “Alpine star.” A symbol of resilience, endurance, and the ability to thrive in demanding environments.

Follow the flower