Top Government-Defense Companies

No description available.

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

Operates a global multi-orbit satellite network providing broadband, narrowband, and secure communications for commercial aviation, maritime, enterprise, and defense markets

Develops and manufactures satellite systems for navigation, Earth observation, telecommunications, and reconnaissance, and produces aerospace structures and launcher components

Designs and manufactures satellite systems, orbital robotics, and geointelligence platforms for government, defense, and commercial space operators worldwide

Operates a multi-orbit fleet of GEO and MEO satellites delivering video distribution, data connectivity, and managed network services to broadcasters, telecom operators, and governments worldwide

Operates high-resolution Earth observation satellites and develops AI-powered spatial intelligence software for defense, intelligence, and commercial mapping applications

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

No description available.

Operates a multi-orbit satellite fleet combining 33 geostationary satellites and a 600+ LEO constellation to deliver broadcast, broadband, and connectivity services globally

Manufactures satellite components, solar arrays, deployable structures, and spacecraft platforms for defense, civil space, and in-space manufacturing missions

Manufactures solid and liquid propulsion systems for European space launchers and produces the Vega family of small-lift launch vehicles

Manufactures reusable medium-to-heavy-lift launch vehicles using large-scale metal 3D printing and autonomous robotics

Manufactures satellite communication payloads and laser inter-satellite link terminals, with equipment aboard more than half of all communication satellites in orbit

Designs and manufactures satellite platforms, reusable spaceplanes, expandable habitats, and propulsion systems for national security and civil space

Designs and manufactures commercial space stations in low Earth orbit for crewed missions, microgravity research, and in-space manufacturing

Designs and operates small- and medium-lift launch vehicles, lunar landers, and in-space maneuvering vehicles for defense, civil, and commercial space missions

Operates the world's largest GEO satellite backbone delivering broadband, media, and mobility connectivity across 200+ countries via multi-orbit infrastructure

Provides global ground station networks, satellite launch services, sounding rocket and balloon systems, and spacecraft engineering from Esrange Space Center and stations on six continents

No description available.

Manufactures and operates the world's largest synthetic aperture radar satellite constellation, providing persistent Earth observation data and natural catastrophe analytics

Operates a 66-satellite LEO constellation providing pole-to-pole voice, data, IoT, and PNT services via cross-linked L-band satellites

Operates a space-based cellular broadband network delivering 4G and 5G connectivity directly to standard smartphones via LEO satellites

Develops commercial space station modules, operates private astronaut missions to the ISS, and produces next-generation EVA spacesuits

Manufactures and operates the Jilin-1 constellation of over 100 optical remote sensing satellites and provides geospatial data products and services

Provides satellite ground station services, maritime surveillance, and Earth observation data through a global network of polar and mid-latitude antennas

Operates a global GEO satellite fleet and is building Telesat Lightspeed, an enterprise-class LEO constellation delivering fiber-like broadband with ultra-low latency

Provides satellite communications, geospatial intelligence, and positioning services as Saudi Arabia's PIF-backed national space services company

Designs and manufactures Earth observation satellites, electro-optical payloads, and ground systems for end-to-end GEOINT solutions

No description available.

Designs and manufactures satellite platforms, subsystems, and Earth observation payloads for LEO constellations, from 50 kg to 5,000 kg

Designs and operates spacecraft for on-orbit servicing, including debris removal, satellite life extension, and refueling across LEO and GEO

Designs, mass-manufactures, and operates standardized spacecraft platforms and end-to-end mission solutions for national security and commercial constellation customers

Operates a multipurpose nanosatellite constellation delivering weather, aviation, and RF intelligence data via space-based sensors and ground infrastructure

Designs and operates lunar landers, data relay satellites, and infrastructure services to commercialize access to the Moon

Operates orbital transfer vehicles for last-mile satellite delivery, hosted payload services, space cloud computing, and in-orbit servicing

End-to-end satellite manufacturer delivering modular spacecraft platforms, mission operations, and ground services for defense, civil, and commercial customers worldwide

Integrates satellite communications, geospatial analytics, and artificial intelligence for government and enterprise customers worldwide

Designs, manufactures, and integrates software-defined phased array communications systems, payloads, and satellites for space, airborne, and ground platforms

Operates a low-Earth orbit satellite constellation providing mobile voice, data, and IoT connectivity services, and licenses Band n53 terrestrial spectrum for private 5G networks

Develops defense electronics, solid and electric propulsion systems, commercial space station infrastructure, and mission-critical space solutions for government and commercial customers

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

Designs and operates orbital transfer vehicles that move payloads between orbits using high-thrust chemical propulsion, delivering to GEO in under a day

Designs and manufactures liquid rocket engines, solid rocket motors, and hypersonic propulsion systems for commercial launch and U.S. defense applications

Operates autonomous precision manufacturing factories producing components for aerospace and defense companies, powered by AI-driven factory automation software

Develops lunar landers, rovers, surface power systems, and reusable suborbital rockets for payload delivery and infrastructure on the Moon

Manufactures optical communications terminals for satellite-to-satellite and airborne laser links, supplying inter-satellite connectivity hardware for government and commercial constellations

Designs small-lift orbital launch vehicles using oxygen-rich staged combustion engines and serial manufacturing techniques from commercial industries

Operates a satellite-as-a-service platform that integrates, deploys, and operates customer payloads and AI applications on standardized LEO spacecraft

Manufactures standardized nanosatellite and microsatellite buses and provides end-to-end small satellite mission integration services

Designs, manufactures, and integrates nanosatellites and small satellite subsystems, with constellation operations and advanced mission capabilities for defense, civil, and commercial customers

Designs and mass-manufactures standardized satellite bus platforms for commercial and government constellation deployments across LEO, MEO, and GEO orbits

Designs, manufactures, and operates X-band synthetic aperture radar satellites delivering sub-meter resolution Earth observation imagery in all weather conditions

Operates a high-revisit Earth observation constellation and AI-powered Spectra platform for real-time geospatial intelligence and automated monitoring

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

Designs and builds autonomous spacecraft, mission software, and payloads exclusively focused on space defense and superiority operations

Operates a hyperspectral Earth observation satellite constellation and analytics platform for agriculture, energy, environment, and mining

Builds satellite platforms, orbital deployers, and ground stations, providing full-stack space engineering solutions for civilian and defense clients

Designs, builds, and operates mission-tailored LEO satellite constellations for Earth observation, climate monitoring, and national security applications

Operates a constellation of formation-flying satellites that detect, geolocate, and characterize radio frequency emissions for defense and intelligence missions

Develops and operates small SAR satellites and provides Earth observation data and analytics for disaster response, national security, and environmental monitoring

Designs, builds, launches, and operates small satellites for Earth observation, telecommunications, navigation, and science missions

Develops hybrid-propellant launch vehicles, a modular satellite bus, and operates Australia's first licensed orbital spaceport

No description available.

Operates an optical satellite constellation providing real-time data relay, on-orbit computing, and hosted payload services for space missions

Designs and manufactures metamaterial-based flat-panel satellite antennas and terminals for mobile communications on the move

Designs and manufactures defence weapon systems, high energy laser weapons, counter-drone systems, and space domain awareness technologies

Designs, builds, and operates SAR satellite constellations delivering sub-meter Earth imagery and flight-proven spacecraft hardware

Designs, manufactures, and operates microsatellite constellations for Earth observation and provides one-stop satellite mission services

Designs and manufactures large-scale, high-power satellite platforms with in-house electric propulsion and avionics for multi-orbit missions

Provides AI-powered space domain awareness, satellite tracking, space traffic coordination, and orbital simulation for government and commercial operators

Designs, builds, and operates autonomous spacecraft for space domain awareness, debris removal, and in-orbit servicing using gridded ion propulsion

Designs, manufactures, and operates a constellation of sub-meter resolution Earth observation satellites, selling imagery and full satellite systems to government and commercial customers

Designs electric propulsion systems for small satellites and operates orbital transfer vehicles for last-mile delivery and in-orbit services

Develops small solid-fuel launch vehicles and rocket propulsion systems, and provides rapid-response commercial launch services for microsatellite and nanosatellite customers

Manufactures non-toxic green propulsion systems for satellites and operates reusable suborbital spaceplanes for research and high-speed flight

Develops optical communication terminals and deploys space-based laser data relay networks for LEO satellite constellations and government programs

Builds multi-sensor imaging satellites that fuse SAR and optical data in a single pass for all-weather, day-and-night Earth observation

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

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

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

Manufactures advanced semiconductor materials and alloys in microgravity using reusable, returnable satellite platforms for return to Earth