Rubicon Space Systems is a space engineering company based in the United States. With more than 30 years of combined experience in developing green propulsion technologies, Rubicon specializes in the development of thrusters and propulsion systems for space applications.

The company utilizes Advanced Space Craft Energetic Non-Toxic propellant (ASCENT), also known as AF-M315E, in its product lines of thrusters and propulsion systems.

Rubicon is a division of Plasma Processes, which is also a supplier of advanced materials solutions to commercial and government customers in aerospace, defense, power generation, oil & gas, semiconductor, and other key industries.