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Phase Four
Phase Four

Based in El Segundo, California, Phase Four is enabling the exponential growth of satellite constellations by solving the satellite’s costliest problem, the propulsion system. The company’s electrodeless RF thruster is the smallest plasma propulsion system available today, and can be scaled for small satellites to school bus-sized satellites. By eliminating the most common failure points in legacy technologies – electrodes, high-voltage electronics, and complex fabrication – Phase Four has built a system that offers reliable high performance with baked-in manufacturability. Designed with tomorrow’s satellites and constellations in mind, the P4 RF thruster brings #smallsatellites the same performance levels of large satellites, in a simpler form factor.
El Segundo, CA, USA
Founded in 2015
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