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Phase Four

US
commercialFounded 2015
Admin Edit

Verified facts grounded in source documentation.

Phase Four was founded in 2015 to develop next-generation radio-frequency thruster (RFT) electric propulsion solutions for small satellites.

NARRATIVE PLAN10/14/2022Phase Four unveils new thruster for LEO constellations

Phase Four plans to scale production at the new Hawthorne facility to support delivery of over 100 Maxwell engines annually.

NARRATIVE GROWTH5/26/2022Phase Four’s RF Thruster Engine Manufacturing Capacity To Increase In 2022

Phase Four won a contract on 2021-08-18 at the U.S. Space Force’s first SpaceWERX Pitch Day to fuel its Maxwell engine with the green propellant ASCENT developed by the U.S. Air Force Research Laboratory.

ORG RELATIONSHIP8/25/2021Phase Four Maxwell to test green propellant

Phase Four raised $26,000,000 in a Series B funding round.

NARRATIVE FINANCIAL6/11/2021Phase Four raises $26 million

Phase Four currently produces up to 10 Maxwell thrusters per month and expects to double that production rate by the end of the year using its existing facilities.

NARRATIVE GROWTH1/31/2019Phase Four wins orders for smallsat electric thrusters

Phase Four is expanding its leadership team to target the satellite constellation market with its electric propulsion system.

NARRATIVE GOVERNANCE10/15/2018Phase Four aims for constellation orders