El Segundo, California, United StatesFounded 201531+ employeesPrivate
$35.8M raisedGrowth· last: series c (Jan 2025)· 8 rounds
Backed by(12 investors)
Phase Four is a provider of electric propulsion (EP) for small satellites. The company was founded in 2015 to accelerate the advancement of its core differentiator, the Radio Frequency Thruster (RFT). The hallmark of Phase Four’s RFT is simplicity.
