Space and ISR Companies in the United States

Builds software-defined phased-array payloads, satellite buses and communications systems for defense, and is building its own satellite network.

Develops Nova, a fully reusable medium-lift launch vehicle, targeting commercial and national security launch missions.

Designs and operates LEO satellite constellations on its Halo platform for Earth observation, wildfire detection and national security missions.

Builds large, high-power satellite buses designed for mass production, aimed at defense and commercial missions across LEO, MEO and GEO.

Mass-produces standardized satellite buses for government and commercial constellations, including the Aries and Nova platforms.

Builds an orbital power grid that beams solar energy to satellites with optical power beaming, raising power for defense and commercial spacecraft.

Builds ground-based optical telescopes, laser communications ground stations and in-space payloads for space domain awareness, with manufacturing in Detroit.

Builds DROID spacecraft for rendezvous, proximity operations and space domain awareness, plus surveillance payloads and Starfire mission software.

Builds Jackal autonomous orbital vehicles and Mosaic mission autonomy software for space domain awareness and space security operations.

Builds Otter servicing spacecraft that dock with satellites for life extension, inspection and deorbit, for the Space Force, SDA, NASA and commercial operators.

Develops Supernova, a highly maneuverable spacecraft using solar thermal propulsion to move between LEO, MEO and GEO for space domain awareness and servicing.

Building Pulsar, a 258-satellite LEO navigation constellation offering jam-resistant, encrypted positioning and timing as a complement to GPS.

Spun out of Sierra Nevada Corporation, builds the Dream Chaser spaceplane, satellite buses, habitats and rocket engines, including defense work.

Develops in-space assembly, welding and X-ray inspection systems for building large orbital platforms and inspecting objects in orbit.

Builds Portal, a mass-producible multi-beam phased array ground station network, to connect satellites for government and commercial operators.

Builds orbital capsules that reenter Earth's atmosphere, used for in-space manufacturing and as recoverable hypersonic flight testbeds for the Air Force.

Builds in-space transportation vehicles, the Mira and Helios orbital transfer vehicles, for rapid delivery of payloads including defense missions to LEO and GEO.

Builds Arc, an autonomous reentry vehicle that stores cargo in orbit and delivers it anywhere on Earth for military logistics and hypersonic testing.

Operates very low Earth orbit satellites delivering 10 cm visible and thermal infrared imagery, now focused on government and defense customers.

Builds and operates high-resolution synthetic aperture radar satellites, selling imagery and tasking to defense and intelligence customers.

Develops in-space refueling infrastructure, including the RAFTI refueling port accepted by the Space Force for military satellites, plus fuel shuttles and depots.

Provides space domain awareness data, a global optical sensor network and the Beacon coordination tool for government and commercial satellite operators.

Builds space-based optical sensors and autonomy software that let satellites detect and track other objects for space domain awareness.

Operates a global network of ground-based phased array radars that track objects in low Earth orbit for space domain awareness and missile defense.

Builds large spacecraft modules, including an Orbital Carrier that stores and deploys satellites on demand for Space Force missions.

Founder-owned launch company developing Rocket 4 and a mobile launch system for responsive national security launch, plus spacecraft engines.