The best propulsion space startups
18 propulsion companies in the directory, ranked by disclosed funding ($1.8B raised between them), spanning 6 countries.
The companies building the engines: from staged-combustion rocket motors to iodine-fueled electric thrusters the size of a shoebox. Every other category in this directory moves because of this one.
Stoke Space Fully reusable Nova rocket with a novel regeneratively cooled second stage
Impulse Space Mira and Helios orbital transfer vehicles, founded by SpaceX employee number one
Reaction Engines Shut downAir-breathing rocket engines
Portal Space Systems Supernova, a solar-thermal spacecraft built for rapid maneuvers across orbits
Latitude Zephyr, a dedicated small satellite launcher from Reims, France
Accion Systems Satellite propulsion
Magdrive Metal-fueled plasma propulsion with dramatically higher thrust density
Enpulsion Advanced propulsion systems for small sats
NewRocket Eco-friendly rocket engines
Applied Ion Systems LLC Low cost electric propulsion systems
Additive Rocket Corporation 3D printing rocket engines
Isar Aerospace Spectrum, the first orbital launch vehicle developed in continental Europe by a private company
Miles Space Propulsion and space communications
Morpheus Space Modular electric propulsion giving small satellites agile maneuverability
Phase Four AcquiredCompact electric propulsion for space
Rocket Factory Augsburg RFA One small launcher built with automotive-style serial production
ThrustMe Iodine-fueled electric propulsion systems for small satellites
Ursa Major Technologies Engines for small satellites
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