Categories: DeliveryDesignDevelopmentHardwareInfrastructureInvestmentSpaceVehicles
Stellar Alpina is a Zurich-based space venture developing high-performance Rotating Detonation Engines, modular in-space vehicles and lunar delivery systems. Our mission is to build upstream hardware that gives Europe a sovereign path to the Moon. Founded by ARIS Alumni, we combine hands-on engine development, system design expertise and shared leadership to create a scalable architecture for propulsion and lunar access. Our work is grounded in Swiss precision and driven by the belief that world-class space systems can be built in Zurich. Stellar Alpina is shaping the next chapter of European space infrastructure: engines, vehicles and landers built to deliver reliably to the lunar surface.
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Mentions in press and media 5
| Date | Title | Description |
| 04.09.2026 | Stellar Alpina’s innovation opens new possibilities for orbital mobility |
Stellar Alpina was founded by Rick Röthlisberger, Simi Y. Wespi, Victor Elliesen and Patrick Egli. It emerged from ARIS (the Academic Spaceflight Initiative Switzerland), where its members developed a student-built rotating detonation rock... |
| 31.05.2026 | Stellar Alpina Raises CHF 3.5 Million To Advance Detonation-Based Space Propulsion Technology | Stellar Alpina, a Swiss space technology startup based at Innovation Park Zurich, announced that it has raised CHF 3.5 million in pre-seed funding to accelerate the development of rotating detonation rocket engines (RDREs) designed for next... |
| 28.05.2026 | CHF 3.5M to Build Stellar Alpina Detonation-Based Propulsion for Mobility After Launch | Stellar Alpina, a Swiss space startup headquartered at Innovation Park Zurich, has secured CHF 3.5 million, in pre-seed funding led by Founderful. The round includes participation from LP&E, a deep-tech venture capital firm whose portfo... |
| 20.05.2026 | ESA BIC Switzerland onboards six startups in 20th cohort |
ESA BIC Switzerland, a start-up support program of the European Space Agency (ESA) and operated by ETH Zurich, has onboarded six startups in the 20th cohort of their flagship innovation program.
ESA BIC Switzerland supports local startups ... |
| - | Stellar Alpina | “Stellar Alpina develops modular lunar landers and the RDRE propulsion modules that power them, combining rapid hardware iteration with a scalable platform approach for reliable missions from Earth orbit to the Moon.” |
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