Hydrogen

A

Arianespace PRIVATE

operating

Operates Ariane 6 and Vega C launch vehicles from the Guiana Space Centre, serving European institutional and global commercial satellite customers

B

Blue Origin PRIVATE

operating

Develops reusable heavy-lift launch vehicles, rocket engines, lunar landers, in-space logistics platforms, and satellite communications constellations

E

Eta Space PRIVATE

operating

Develops cryogenic propellant management systems for in-space storage, transfer, and refueling, and liquid hydrogen infrastructure for terrestrial energy applications

E

European Space Agency GOV

operating

Intergovernmental agency coordinating European space programs across science, Earth observation, navigation, telecommunications, and human spaceflight

I

ISRO GOV

operating

India's national space agency developing launch vehicles, satellites, and interplanetary missions for societal benefit

J

JAXA GOV

operating

Japan's national space agency conducting launch operations, satellite development, Earth observation, asteroid exploration, and human spaceflight research

S

Skyroot Aerospace PRIVATE

operating

Develops small-lift launch vehicles for the small satellite market using solid-fuel boosters, 3D-printed liquid engines, and cryogenic propulsion

S

Stoke Space PRIVATE

operating

Develops fully and rapidly reusable medium-lift launch vehicles for orbital access, in-space mobility, and cargo return

U

United Launch Alliance

operating

Manufactures and operates the Vulcan Centaur and Atlas V launch vehicles for national security, NASA, and commercial customers