SleipnirX is a propulsion company founded on a single conviction: that pressure-gain detonation combustion is the most promising path to dramatically more efficient flight and spaceflight — and that it deserves a team building real hardware, not just papers.
To develop high-efficiency detonation propulsion systems — starting with pulse and rotating detonation engines — and to put them on test stands and into flight, proving a new standard for propulsion performance.
To become the company that develops every class of detonation propulsion — from air-breathing combustors to advanced and, ultimately, nuclear propulsion — expanding what humanity can reach.
Detonation engines are not new physics — rotating detonation research alone spans roughly fifty years. What has been missing is focused, hardware-first execution that turns the science into deployable propulsion.
So we start narrow and deliberate: a simple, fundable demonstrator we can build and fire, validated against real market needs. From that foundation we expand — through static and flight testing, into air-breathing combustors, and toward the advanced propulsion that defines our long-term ambition.
We'd rather earn credibility with working hardware than with broad, vague promises.
We measure progress in test fires and data, not buzzwords. Real engines, real numbers.
Sky-high goals, executed one fundable milestone at a time.
The hardest problems in propulsion are solved with the right collaborators, not in isolation.
Detonation is powerful. We treat testing, compliance and process with the seriousness they demand.
We chase the questions others left dormant — and turn them into engineering advantage.
Every decision is a step toward propulsion that reaches further than today's limits.
A lean, technical founding team spanning propulsion engineering, R&D and operations — actively growing.
Leads company formation, fundraising and partnerships — setting the strategy that turns detonation research into a fundable business.
Drives the engineering direction across PDE and RDE platforms and the design of the first demonstrator.
We're assembling a founding crew across propulsion engineering, market research and recruiting. See open roles.
Whether you want to invest, collaborate, integrate our engines or join the team — we want to hear from you.