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Phase Four Closes $26M in Series B

2021-06-11
EL SEGUNDO, CA, Phase Four has closed a Series B investment round of $26 million led by New Science Ventures.
Phase Four, the creator of the radio-frequency thruster for satellite propulsion, has closed a Series B investment round of $26 million. The round was led by New Science Ventures.

Phase Four is a provider of next generation electric propulsion (EP) solutions for small satellites. The company was founded in 2015 to address the demands of the rapid proliferation of satellite constellations and to accelerate the advancement of its radio-frequency thruster (RFT). The Phase Four RFT represents a revolutionary new architecture that realizes lower cost, mass-manufacturability, miniaturized power electronics, and propellant agnosticism over incumbent technologies, without compromising performance.
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