Zurich-based SpaceTech startup developing compact rotating detonation rocket engines (RDREs) to make movement between orbits faster, smaller, and more efficient
Stellar Alpina has raised €4.0M across 2 funding rounds from 4 investors, most recently a round in Sep 2026. Based in Zurich, Switzerland; active in Space. Data as of 21 Sept 2026.
Timing: too soon vs cohort gap · momentum down. Funding-only estimates, not predictions and not investment advice — see signals.
| Date |
|---|
| Stage |
|---|
| Amount |
|---|
| Investors |
|---|
| 2026-09-04 | Other | €159k | Venture Kick | View deal → |
| 2026-05-28 | Pre-Seed | €3.8M | Founderful ,LP&E,strategic investors | View deal → |
