Newslink: General Atomics Ramping Cubesat Production, Muses Railgun Smallsat Launcher
General Atomics is better known for building Predator combat drones and mining uranium than building spacecraft, but that could change as the company develops an interest in building defense-focused cubesats.
https://www.space.com/38476-general-atomics-cubesat-production-smallsat-railgun.html