Space Propulsion
Satellites & Platforms 37Companies developing propulsion systems sold as products to other spacecraft or launch vehicle builders. Electric, chemical, nuclear, or novel propulsion technologies.
Statistics
Key Tags
| Company ↑ | HQ | Status | Tags | |
|---|---|---|---|---|
| Perigee Aerospace | Daejeon, South Korea | operating | → | |
| Phase Four | Hawthorne, California, USA | closed | → | |
| Portal Space Systems | Bothell, Washington, USA | operating | → | |
| Relativity Space | Long Beach, California, USA | operating | → | |
| Revolution Space | Charlestown, Massachusetts, USA | operating | → | |
| Sierra Space | Louisville, Colorado, USA | operating | → | |
| Skyroot Aerospace | Hyderabad, Telangana, India | operating | → | |
| Space Pioneer | Beijing, China | operating | → | |
| Starfish Space | Tukwila, Washington, USA | operating | → | |
| Ursa Major Technologies | Berthoud, Colorado, USA | operating | → | |
| Zeno Power | Washington, District of Columbia, USA | operating | → | |
| i-Space | Beijing, China | operating | → |
Perigee Aerospace
Perigee Aerospace
OperatingDevelops small-lift methane-fueled launch vehicles and manufactures liquid propulsion systems, composite tanks, and satellite thrusters
Phase Four
Phase Four
ClosedDeveloped electrodeless radio-frequency and multi-mode electric propulsion systems for satellites
Portal Space Systems
Portal Space Systems
OperatingManufactures solar-thermal-propelled spacecraft buses for high-delta-v, multi-orbit maneuverability and tactically responsive space operations.
Relativity Space
Relativity Space
OperatingManufactures reusable medium-to-heavy-lift launch vehicles using large-scale metal 3D printing and autonomous robotics.
Revolution Space
Revolution Space
OperatingDevelops in-space electric propulsion systems and advanced spacecraft solutions for commercial and defense satellite operators.
Sierra Space
Sierra Space
OperatingDesigns and manufactures satellite platforms, reusable spaceplanes, expandable habitats, and propulsion systems for national security and civil space
Skyroot Aerospace
Skyroot Aerospace
OperatingDevelops small-lift launch vehicles for the small satellite market using solid-fuel boosters, 3D-printed liquid engines, and cryogenic propulsion
Space Pioneer
Space Pioneer
OperatingDevelops reusable kerosene-liquid oxygen launch vehicles and rocket engines for commercial and government satellite deployment missions
Starfish Space
Starfish Space
OperatingDevelops autonomous satellite servicing vehicles using electric propulsion for life extension, disposal, and on-orbit maneuvering
Ursa Major Technologies
Ursa Major Technologies
OperatingDesigns and manufactures liquid rocket engines, solid rocket motors, and hypersonic propulsion systems for commercial launch and U.S. defense applications.
Zeno Power
Zeno Power
OperatingDevelops radioisotope power systems that convert heat from decaying isotopes into years of reliable electricity for lunar surface and seabed missions.
i-Space
i-Space
OperatingDevelops solid and liquid-fueled launch vehicles including the Hyperbola series, with China's first privately-built orbital rocket and a reusable methane rocket in development.