Recent News

Phase Four is building out a new 23,000 sq.ft. production facility to support high volume plasma propulsion engine manufacturing.

El Segundo-based Phase Four today finalized a lease to build a second factory and scale production of its Maxwell engine product line. The new Hawthorne facility will be over 3X larger than Phase Four’s current plant, and capable of cranking out 100 engines a year.

For most of the last decade, the U.S. relied almost entirely on Russia for rocket engines and crewed launches into space.

Phase Four expands its leadership team to support the company’s rapid growth in both the commercial and government markets.

Phase Four won a Defense Advanced Research Projects Agency contract to demonstrate the California startup’s radio frequency thruster technology with a new propellant

The Company will adapt its versatile radio-frequency thruster to operate on novel, low cost propellants.

Propulsion startup Phase Four has signed a memorandum of understanding with satellite refueling startup Orbit Fab aimed at preparing future Phase Four Maxwell engines for on-orbit refueling.

2021 has been by far the most significant year in the history of Phase Four

Satellite electric propulsion company Phase Four has completed testing of a new thruster that it says offers significantly improved performance

In the wake of delivering its 10th flight unit, Phase Four announces 85%+ performance improvement in 2nd generation thruster