Stellar Alpina
Developing compact rotating detonation rocket engines (RDREs) for faster, smaller, and more efficient in-space mobility.
About
Stellar Alpina is a SpaceTech startup based in Zurich, Switzerland, focused on developing compact rotating detonation rocket engines (RDREs). Their technology aims to revolutionize in-space mobility by making movement between orbits faster, smaller, and more efficient. The company's engines leverage detonation waves, a supersonic combustion process, to extract more energy from propellant compared to traditional deflagration methods.
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Key facts
- Headquarters
- Zurich, Switzerland
- Founded
- 2026
- Total funding
- $4M (Pre-Seed)
- Business model
- B2B
Funding rounds
| Date | Round | Amount | Lead investors |
|---|---|---|---|
| 1 May 2026 | Pre-Seed | $4M | Founderful |
Frequently asked
What does Stellar Alpina do?
This leads to smaller, lighter, and higher-performance engines with fewer mechanical components. Stellar Alpina's solutions are designed to address the growing needs of the space economy for orbital transfers, repositioning of assets, in-space servicing, assembly, and future deep-space infrastructure. They have successfully commissioned test infrastructure and completed a significant engine test campaign with their first RDRE, Engine 0, marking a key milestone in Europe.
How much funding has Stellar Alpina raised?
Stellar Alpina has raised a total of $4M in funding. The most recent round on record is Pre-Seed.
Public record
SEC filings, insider activity, nonprofit links and pay benchmarks for Stellar Alpina
