Reaction Engines

Venus Aerospace

This company develops rotating detonation rocket engines and hypersonic flight systems for customers in the defence, space and commercial aviation sectors.

Hermeus

This company develops hypersonic aircraft and propulsion systems for the United States Department of Defense, government agencies and the commercial aviation sector.

Dawn Aerospace

This company develops reusable spaceplanes and satellite propulsion systems for space agencies and commercial satellite operators.

Boom Supersonic

This company develops supersonic airliners and engines for commercial airlines and government markets.

Specter Aerospace

Specter Aerospace develops plasma-assisted combustion systems and hypersonic propulsion technology for the United States Department of Defense and commercial aerospace sectors.

Ursa Major

Ursa Major manufactures rocket propulsion systems and solid motors for space launch, hypersonic flight and national security customers.

Pangea Propulsion

This company develops reusable aerospike rocket engines and in-space propulsion systems for satellite operators and launch vehicle providers.

Astro Mechanica

This company develops jet engines and airframes for supersonic and subsonic flight for commercial aviation and defence customers.