Wikipedia
Ventions
Ventions, LLC is a launch vehicle development company based out of San Francisco, California, that has been working to develop pump-fed, liquid bipropellant propulsion engines for DARPA and NASA. Most recently, Ventions was a technology provider for DARPA's Airborne Launch Assist Space Access (ALASA) program, and is currently working on the Small Air Launch Vehicle to Orbit (SALVO) program, a pathfinder air-launched vehicle for placement of cubesat sized payloads into Low Earth Orbit.