Changing the Way We Move in Space

Changing the Way We Move in Space

ABOUT PHASEFOUR

Phase Four is a disruptive provider of next generation electric propulsion (EP) solutions for satellites. Phase Four’s RF Thruster represents a revolutionary new architecture that realizes lower cost, mass-manufacturability, miniaturized power electronics, and propellant agnosticism over incumbent technologies, without compromising performance. In 2021 Phase Four’s Maxwell turn-key propulsion system achieved flight heritage and is now being regularly utilized by satellite operators.

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PRODUCTS

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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

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RECENT NEWS

Read more about us and updates in the news.

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Phase Four Wins AFWERX Funding Boost for Propulsion Tech Development

July 10, 2023

Propulsion company Phase Four received a funding increase from the Air Force Research Laboratory and its innovation arm AFWERX.
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The plasma glow created by Phase Four’s novel RF spacecraft engine firing on AFRL’s “green” propellant.
Phase Four’s spacecraft engine first to demo AFRL’s game-changing ‘green’ fuel

November 4, 2022

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."
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Phase Four Unveils Game Changing Engine for LEO Constellations

October 13, 2022

Leveraging its new Block 2 architecture, Phase Four announces Max-V, a revolutionary plasma propulsion system available in 2023
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CONTACT

We'd love to learn more from you. Please use the contact form to the right to get in touch with us, or a specific team, and we will get back to you as soon as we can!