Companies

1

12G Flight Systems PRIVATE

operating

Space systems software engineering, ECSS/CCSDS training, and independent reviews for aerospace projects

2

27G PRIVATE

operating

Hungarian R&D company supplying dosimetry and power management devices for satellite and space missions

2

2NDSpace PRIVATE

operating

CubeSat platforms, components, and separation systems for nanosatellite missions

3

3D Plus PRIVATE

operating

French manufacturer of radiation-tolerant microelectronics and stacked memory modules for space and industrial use

3

3H Communication Systems PRIVATE

operating

RF and microwave filter manufacturer for military, commercial, and satellite applications

A

AAC Clyde Space PUBLIC

operating

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

A

AGENA SPACE PRIVATE

operating

French NewSpace startup developing green liquid propulsion systems for SmallSat orbital mobility

A

AIKO PRIVATE

operating

AI-powered autonomous software for satellite operations, onboard processing, and maneuvering

A

ALL.SPACE PRIVATE

operating

Multi-orbit electronically steered antenna terminals for defense, government, and satellite connectivity

A

ARCA Dynamics PRIVATE

operating

Rome-based SSA/SST company operating proprietary CubeSats to monitor and track space objects

A

ASSURANCE TECHNOLOGY CORP PRIVATE

operating

Space, avionics, and C4ISR systems developer serving US military, NASA, NOAA, and commercial customers since 1969

A

AST SpaceMobile PUBLIC

operating

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

A

ATLAS Space Operations PRIVATE

operating

Operates a cloud-native federated ground station network providing Ground Software as a Service for satellite telemetry, tracking, and command

A

Aalyria PRIVATE

operating

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

A

Absolut Sensing PRIVATE

operating

Satellite-based methane and greenhouse gas monitoring using miniaturized cooled hyperspectral instruments

A

Advanced Space PRIVATE

operating

Space mission software and services provider — astrodynamics, flight dynamics, and turn-key missions

A

Aerospacelab PRIVATE

operating

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

A

Agnikul Cosmos PRIVATE

operating

Designs, manufactures, and launches small-lift orbital rockets powered by single-piece 3D-printed semi-cryogenic engines for dedicated small-satellite missions

A

AirLaunch PRIVATE

operating

Developer of the QuickReach air-launched small satellite vehicle for the DARPA/USAF Falcon SLV program

A

Airbus Defence and Space PRIVATE

operating

Aerospace and defence company producing commercial aircraft, helicopters, military systems, satellites, and security

A

Airbus U.S. Space & Defense PRIVATE

operating

U.S.-based Airbus subsidiary offering satellites, military helicopters, unmanned systems, and defense solutions to U.S

A

Alba Orbital PRIVATE

operating

Designs and manufactures PocketQube picosatellites, brokers rideshare launches, and operates a nighttime Earth observation constellation

A

Albedo PRIVATE

operating

Designs and manufactures flight-proven Very Low Earth Orbit satellite buses for defense, communications, and specialized payload operators

A

Alén Space PRIVATE

operating

Spanish small satellite company designing, manufacturing, and operating nanosatellite end-to-end missions