Top Legacy Prime Companies

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

Conducts civilian space exploration, aeronautics research, and space science across human spaceflight, robotic missions, and Earth observation programs

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

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.

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

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.

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

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

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

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.

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

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.

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

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

Governs China's civil space programs, oversees lunar and planetary exploration missions, and coordinates international space cooperation

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