X-Bow Systems

X-Bow Systems is the first company in decades to push its way into the American solid rocket motor business from outside it. Founded in Albuquerque in 2016 and out of stealth in the spring of 2022, it bet on printing solid propellant instead of casting it, using a patented process the company calls Advanced Manufacturing of Solid Propellant. Continuous in-line mixing replaces the batch mixers and pour pits that have shaped the trade for sixty years, so grain geometry becomes a software choice and a motor can be built in days. That is the whole thesis. Crosslink Capital, Razor's Edge Ventures, Boeing and Lockheed Martin Ventures have put roughly $157 million behind it across five rounds, and a Series B reached $105 million in May 2025 on a tranche led by Lockheed Martin.

The company splits its work into what it calls We Make, We Build, We Fly and a composites arm. We Make sells the propellant technology itself as production equipment rather than as motors. Rocket Factory in a Box is the containerized version, a deployable line that can be installed wherever a customer needs energetics, and Gen-0 is the fixed industrial-scale system running at the campus in Luling, Texas. Chief executive Jason Hundley has put the production goal at a few million pounds of solid propellant a year. We Build turns that propellant into motors. The Ballesta series covers the 32 to 34.5 inch class, and Ballesta-34 is described as the largest additively manufactured motor flown to date, aimed at medium range ballistic and hypersonic boost work.

We Fly is the flight side. X-Bow launches on its own hardware, offering suborbital, orbital and in-space missions built from a modular family of boost rockets, and the Bolt demonstrator flew its first suborbital mission in July 2022 before flying again the following year. Customers buy mission planning, integration and range operations along with the motors. The fourth arm is composites, acquired in July 2024 when the company bought Spencer Composites of Sacramento, California and its 26 staff. That shop filament winds motor cases and composite overwrapped pressure vessels up to 20 feet across and 100 feet long, lays up structural composites, compression molds, runs finite element analysis and pressure tests to 60,000 psi for military and NASA supply chains.

Government work has arrived quickly. The Air Force Research Laboratory funded additive propellant maturation and then the Rapid Energetics and Advanced Rocket Manufacturing effort, which reached end to end energetic operations on two manufacturing systems in Texas in May 2026. A $199.3 million award in September 2025 covers advanced integrated motor manufacturing. The Army put $13.9 million into a joint prototype of a next generation motor for the Guided Multiple Launch Rocket System fired from M270 and HIMARS launchers, and the company has taken on Navy Mk 72 booster and Mk 104 dual thrust motor development plus replacement igniter production. Research sits at Socorro, New Mexico.