Phase Four

More space organisations in United States

• Aethero · Startup · San Francisco

  US space computing startup — builds radiation-tolerant edge computers (e.g. AetherNxN) for on-orbit data processing on satellites.

• Akash Systems · Startup · Emeryville

  US semiconductor company — makes GaN-on-diamond power amplifiers and satellite radios for spacecraft communications, plus diamond-cooled electronics.

• AmplifiedSpace · Startup · Boulder

  American space hardware startup spun out of CU Boulder — develops modular smart electrical power systems for spacecraft.

• Atomic-6 · Startup · Marietta

  American composites company — develops Light Wing retractable solar arrays and Space Armor debris-shielding tiles for satellites.

• ATRX · Startup · Huntsville

  Huntsville startup developing runway-launched reusable space planes powered by an Air Turbo Rocket engine; Techstars Space 2024 graduate.

• Auriga Space · Startup · Long Beach

  American launch startup in Long Beach — developing an electromagnetic launch system to accelerate payloads toward orbit without rocket first stages.

• CisLunar Industries · Startup · Loveland

  American in-space manufacturing startup — develops the Modular Space Foundry for metal processing in orbit and power processing units for satellites.

• Cowboy Space Corporation · Startup · San Carlos

  US space startup (formerly Aetherflux) — develops orbital data centres for AI and associated launch capability, evolving from its space-based solar power origins.