Stellar Alpina raises $4.5M in pre-seed funding to develop rotating detonation rocket engines, led by Founderful with LP&E. The funds will be used for engine testing and team expansion.
Amount Raised
$4.5 Million
Round Type
Pre-Seed
SwitzerlandAerospaceInvestors
Description
Switzerland’s Stellar Alpina has secured CHF3.5M ($4.5M) in a pre-seed funding round to advance their rotating detonation rocket engines. Founderful led the investment, joined by LP&E. The startup aims to enhance their technology and expand their team significantly this year. Their goal is to create a spaceflight-ready RDRE by 2028.
Quick answer
Stellar Alpina raised $4.5 Million in a Pre-Seed round, dated May 28, 2026. Investors: Lp&E and Founderful. Stellar Alpina is based in Switzerland.
- How much did Stellar Alpina raise?
- Stellar Alpina raised $4.5 Million in a Pre-Seed round on May 28, 2026.
- Who invested in Stellar Alpina?
- Lp&E and Founderful are named as investors in this round.
- What does Stellar Alpina do?
- Stellar Alpina is a Swiss startup focused on developing rotating detonation rocket engines (RDRE), designed to improve in-space mobility and efficiency compared to traditional propulsion systems.
- Where is Stellar Alpina based and how big is it?
- Stellar Alpina is based in Switzerland. Fundz records about 5 employees.
- Who are the decision-makers at Stellar Alpina?
- Fundz holds 2 contacts at Stellar Alpina, including the Co-Founder. Names and contact details are shown to Fundz members.
Source: Fundz verified event record.
Who else raised in Aerospace around the same time
Companies in the same sectors as Stellar Alpina that raised within 45 days of this round, from Fundz verified event records.
- Blue Origin raised $10B (Funding Round) on July 8, 2026.
- Orbit Fab raised an undisclosed amount (Funding Round) on July 7, 2026.
- Hongqing Technology raised $191M (Funding Round) on July 3, 2026.
- Elixir Aircraft raised $51M (Funding Round) on July 3, 2026.
- Quantum Systems raised $1.2B (Series D) on July 2, 2026.
- Mako raised $28M (Series A) on June 29, 2026.
Who to call at Stellar Alpina, and when
A new round usually means Stellar Alpina is about to hire and buy. The teams that reach out first get the meeting.
- An alert the day Stellar Alpina raises, hires an executive or expands, scored against what you sell
- The decision-makers there, with verified emails
- Who you already know at Stellar Alpina, from your own LinkedIn network
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