About Phase Four
Phase Four is a company based in Pasadena (United States) founded in 2015. Phase Four has raised $43.59 million across 6 funding rounds from investors including The Artemis Group, Veteran Ventures Capital and New Science Ventures. The company has 29 employees as of December 31, 2022. Phase Four offers products and services including Valkyrie Thruster and Valkyrie Services. Phase Four operates in a competitive market with competitors including Avio, Exotrail, Ursa Major, Bellatrix Aerospace and Dawn Aerospace, among others.
- Headquarter Pasadena, United States
- Employees 29 as on 31 Dec, 2022
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Sectors
Aerospace, Defense & Maritime
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Phone
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Website
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Social
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- Legal Name Phase Four, Inc.
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Annual Revenue
Not available
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Net Profit
Not available
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EBITDA
Not available
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Total Equity Funding
$43.59 M (USD)
in 6 rounds
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Latest Funding Round
$12.93 M (USD), Series C
Jan 06, 2025
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Investors
The Artemis Group
& 4 more
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Employee Count
29
as on Dec 31, 2022
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Products & Services of Phase Four
Phase Four offers a comprehensive portfolio of products and services, including Valkyrie Thruster and Valkyrie Services.
Provides high-efficiency electric propulsion for satellites in various orbits.
Offers propellant loading and software for satellite mission operations.
People of Phase Four
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Funding Insights of Phase Four
Phase Four has successfully raised a total of $43.59M across 6 strategic funding rounds. The most recent funding activity was a Series C round of $12.93 million completed in January 2025. This substantial capital infusion reflects strong investor confidence in the company's business model, growth potential, and market opportunities. The funding enables strategic expansion, product development, market penetration, and operational scaling to drive long-term value creation and competitive advantage.
Investors in Phase Four
Phase Four has secured backing from 5 investors, including institutional and venture fund investors. Prominent investors backing the company include The Artemis Group, Veteran Ventures Capital and New Science Ventures.
| Investor | Description | Founded Year | Domain | Location |
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Veteran-led national security tech firms are supported through investments.
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Early, mid, and late-stage investments are made in science sectors.
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Early-stage technology venture capital firm specializing in risk-oriented investments with a humanist approach.
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Investor details for Phase Four
Investor domains, locations, round participation, and complete history require an active premium plan.
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- Investor locations
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Verified entity values are shown only after access is granted.
Investments & Acquisitions by Phase Four
Investment portfolio details for Phase Four
Portfolio company identities, transaction dates, round details, and investment values require an active premium plan.
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Financial Statements - Phase Four
Detailed financials for Phase Four
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Phase Four Comparisons
Peer comparison for Phase Four
Named peer metrics, headcount, funding, location, and side-by-side benchmarks require an active premium plan.
- Named peers
- Headcount comparison
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- Operating benchmarks
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Competitors of Phase Four
Phase Four operates in a dynamic and competitive business environment, facing competition from various established players and emerging companies in the market. The competitive landscape includes prominent companies such as Avio, Exotrail, Ursa Major, Bellatrix Aerospace and Dawn Aerospace, among others.
| Company Name | Domain | Founded year | HQ Location | Description |
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Space propulsion components, systems, and satellite launch adapters are developed.
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Mobility solutions for small satellites are developed and provided.
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Ursa Major is engaged in developing propulsion and defense systems.
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Manufacturer of electric and green satellite propulsion systems
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Manufacturer of propulsion systems
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Detailed competitors of Phase Four
Competitor domains, locations, full profiles, and operating metrics require an active premium plan.
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Latest news on Phase Four
Complete news archive for Phase Four
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Frequently Asked Questions about Phase Four
Phase Four was founded in 2015 and raised its 1st funding round 1 year after it was founded.
Phase Four is headquartered in Pasadena, United States. It is registered at Pasadena, California, United States.
Phase Four is a funded company, having raised a total of $43.59M across 6 funding rounds to date.
As of Dec 31, 2022, the latest employee count at Phase Four is 29.
Phase Four was founded in 2015 in Pasadena, United States. Operations are focused on the space sector, where propulsion systems for satellites are manufactured. Electrodeless RF thrusters and iodine-based plasma propulsion systems are developed through a dedicated platform. These technologies support small satellite applications in various space missions.
Phase Four's top competitors include Exotrail, Avio and Bellatrix Aerospace.
Phase Four offers Valkyrie Thruster and Valkyrie Services.
Phase Four has 5 investors. Key investors include The Artemis Group, Veteran Ventures Capital, New Science Ventures, AFWERX, and Alsop Louie Partners.