
PRODUCTS

Maxwell
Maxwell is a high performance turn-key plasma propulsion system that leverages miniaturized RF electronics and our electrodeless thruster in a compact form factor.
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Maxwell Systems Delivered
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Maxwell Systems launched into low Earth orbit
WE'VE MOVED
Phase Four is moving into a new facility located at: 12605 S Van Ness Ave, Hawthorne CA

RECENT NEWS
Read more about us and updates in the news.
Phase Four Wins AFWERX Funding Boost for Propulsion Tech Development
Propulsion company Phase Four received a funding increase from the Air Force Research Laboratory and its innovation arm AFWERX.
Read More Phase Four’s spacecraft engine first to demo AFRL’s game-changing ‘green’ fuel
Former NASA administrator Jim Bridenstine told Breaking Defense that Phase Four has the potential to "disrupt the in-space propulsion market," and its technology "is important for the country."
Read More Phase Four Unveils Game Changing Engine for LEO Constellations
Leveraging its new Block 2 architecture, Phase Four announces Max-V, a revolutionary plasma propulsion system available in 2023
Read More