Space Propulsion Group, Inc.

space propulsion group, inc is an aerospace company located in sunnyvale, california that was founded in 1999 to advance state-of-the-art propulsion technologies that contribute to safe, cost effective, environmentally friendly access to space. spg's philosophy is to reduce cost, reduce environmental impact, and increase safety of propulsion and power generation systems through the development of innovative technologies. our paraffin-based hybrid rocket technologies are aimed at orbital and suborbital launch vehicles. other applications include upper stages, in-space propulsion, target drones and uav propulsion.