Largest Space Companies

Develops commercial satellites, satellite components, and orbit transfer vehicles powered by proprietary hybrid propulsion technology

Builds satellite-linked geophysical sensors and an AI-powered platform for subsurface mineral exploration and resource discovery

Develops reusable kerosene-liquid oxygen launch vehicles and rocket engines for commercial and government satellite deployment missions

Operates a nanosatellite constellation for space-based radio frequency detection, geolocation, and characterization of maritime vessel emissions

Builds space surveillance satellites and ground-based sensor networks for space domain awareness, missile warning, and space traffic management

Develops small-lift launch vehicles with mobile launch infrastructure and manufactures Hall-effect electric propulsion systems for satellite constellations

Designs and manufactures small satellite platforms and subsystems, operates satellite constellations, and delivers space-based data services

Builds lunar rovers and robotic infrastructure for surface mobility, prospecting, and crew transport on the Moon and Mars

Designs and manufactures electric propulsion systems for spacecraft, including Hall effect, electrospray, RF ion, and green monopropellant thrusters

Operates a global phased-array radar network providing orbital tracking, collision avoidance, and space domain awareness services for low Earth orbit

Operates the first LEO satellite constellation delivering 5G NB-IoT connectivity from space, extending cellular IoT coverage globally

Designs and manufactures small-lift orbital launch vehicles and orbital transfer vehicles from Scotland, using 3D-printed engines and Ecosene fuel derived from waste plastic

Operates sounding rocket ranges and Europe's northernmost orbital spaceport, providing launch services, defence testing, drone operations, and space education from northern Norway

Designs and operates robotic spacecraft for active debris removal, satellite life extension, and in-orbit inspection services

Develops network orchestration software and laser communication terminals that unify satellite, airborne, maritime, and ground networks into a single managed system

Develops on-orbit refueling infrastructure and operates fuel depots, shuttles, and standardized docking interfaces for satellite propellant delivery in Earth orbit

Operates a global optical telescope network and develops space domain awareness, missile defense, and national security space technologies

Develops radioisotope power systems that convert heat from decaying isotopes into years of reliable electricity for lunar surface and seabed missions

Operates a Low Earth Orbit satellite constellation providing high-precision positioning, navigation, and timing services

Develops autonomous satellite servicing vehicles using electric propulsion for life extension, disposal, and on-orbit maneuvering

Designs, manufactures, and operates LizzieSat small satellites, delivering AI-driven space-based data and hardware manufacturing services for defense and commercial customers

Operates a ground-based radar network and digital platform providing space situational awareness, space domain awareness, and space traffic management services

Develops electric and green propulsion systems for satellites and operates an orbital transfer vehicle for precise in-space deployment

Operates a 25-nanosatellite constellation providing global IoT and AIS satellite connectivity for asset tracking, monitoring, and alerting

Develops spacecraft and in-situ refining technology to extract and process platinum group metals from metallic near-Earth asteroids