Phase Four: Funding, Investors & Team (Sep 2026)
Phase Four, established in 2015, specializes in electric propulsion for small satellites, with a focus on their innovative Radio Frequency Thruster (RFT). The RFT stands out for its simplicity as it eliminates the need for certain components, resulting in cost savings, smaller power electronics, and the ability to use different types of propellant. Despite these advancements, Phase Four's RFT maintains the same performance standards as traditional plasma propulsion systems.
Phase Four has raised $32.3M across 3 funding rounds on record, the most recent a Series C announced in Jan 2025.
Phase Four Company Profile and Key Stats
Latest funding round on record: Jan 2025.
Phase Four Funding Rounds
1 of 3 rounds was announced without a disclosed amount and is excluded from the total.
Phase Four raised $26.0M in an undisclosed round announced in Jun 2021.
2.8 years later, an undisclosed round of $6.3M was announced in Mar 2024.
10 months later, a Series C was announced in Jan 2025 with no disclosed amount.
Phase Four Founders and Leadership Team
Contact details for the Phase Four team: 1 of 3 have an email address on file.
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Phase Four Funding FAQs
What does Phase Four do?
Phase Four, established in 2015, specializes in electric propulsion for small satellites, with a focus on their innovative Radio Frequency Thruster (RFT). The RFT stands out for its simplicity as it eliminates the need for certain components, resulting in cost savings, smaller power electronics, and the ability to use different types of propellant. Despite these advancements, Phase Four's RFT maintains the same performance standards as traditional plasma propulsion systems.
How much funding has Phase Four raised?
Phase Four has raised $32.3M across 3 rounds on record.
When did Phase Four last raise funding?
Phase Four's most recent funding round on record was announced in Jan 2025. The amount was not disclosed.
Who founded Phase Four?
FundedIQ lists David Elrod (Founder), Julian Gutierrez Flores (Founder) at Phase Four.
Who is the CEO of Phase Four?
Beau Jarvis is listed as CEO at Phase Four.
Where is Phase Four headquartered?
Phase Four is based in El Segundo, California, United States.
How many employees does Phase Four have?
Phase Four is in the 11-50 employee band.
About FundedIQ's Phase Four Funding Data
FundedIQ tracks announced funding rounds and refreshes this profile every week. Round dates, stages and amounts are normalised to a single format, converted to US dollars, and de-duplicated: two records of the same round announced days apart are merged, and two genuinely different rounds are kept apart on the amounts they disclose. Amounts shown are the disclosed figures only — a round announced without a number is listed and excluded from the total rather than estimated.
Employee counts are reported bands, not exact headcounts. Founder and executive names carry the job title on record. Anything we do not hold for Phase Four is left off this page rather than filled in.
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