SpaceFields

SpaceFields builds custom solid rocket propulsion systems. They handle full design and development of solid-fuel rocket motors for aerospace vehicles, UAVs, defense applications, tactical systems, and commercial spaceflight. These mission-critical systems power sub-orbital, orbital, and in-space platforms with solid propellants. The company supplies turnkey solutions to meet specific needs in these sectors.
X-Bow Launch Systems

X-Bow Systems is an aerospace and defense technology company developing solid rocket motors, advanced propulsion systems, and manufacturing technologies for missile and launch applications. Its approach combines conventional rocket motor production with additive manufacturing of solid propellants, allowing engineers to produce customized propulsion components using digital manufacturing processes. The company also develops modular boost platforms and provides flight testing services for defense and aerospace programs. Its technologies include the Rocket Factory in a Box manufacturing concept, additive manufacturing of solid propellants, and the BOLT family of flight-test platforms.
Tesseract

Tesseract Space is a space technology company developing chemical propulsion systems for satellites and spacecraft operating in Earth orbit and beyond. The company designs and manufactures low-toxicity thrusters, multi-thruster modules, and integrated propulsion systems that support spacecraft maneuvering, orbital adjustments, and mission operations. Its propulsion technology offers an alternative to traditional highly toxic propellants, while its modular hardware architecture allows spacecraft manufacturers to select individual components or complete propulsion solutions based on mission requirements.
Ursa Major Tech

Ursa Major is an aerospace technology company developing rocket propulsion systems for space launch, hypersonic vehicles, and defense applications. Its propulsion portfolio includes the Hadley liquid rocket engine, the Draper storable liquid engine, and solid rocket motors for missile and aerospace systems. The company uses additive manufacturing and specialized production processes to manufacture propulsion hardware. Its technologies support hypersonic flight testing, responsive space missions, missile defense, and launch vehicle development. In 2026, Ursa Major continued flight testing its Hadley and Draper engines for hypersonic applications.