PHASE FOUR, INC.
ClosedHawthorne, United States · Founded 2020 · $26.0M raised
- Headquarters
- Hawthorne, California
- Employees
- 11–50
- Founded
- 2020
- Business Model
- B2B
- Website
- phasefour.io
- Total Funding
- $26.0M
- Last Round
- $26.0M Series CJan 2025
- Rounds
- 4
About
R&D company with 6 SBIR/STTR awards from Department of Defense.
Summary
PHASE FOUR, INC. is an Aerospace company based in Hawthorne, United States, founded in 2020. It has raised $26.0M in total across 4 rounds, most recently a $26.0M Series C round in Jan 2025. Investors include New Science Ventures, Artemis and Glasswing Ventures.
Funding History
Jan 2025
Sign up to see all 4 rounds
Seed through Series C — per-round amounts, valuations, and who invested in each round.
Investors
Similar Companies
Develops all-electric eVTOL aircraft and intends to operate urban air taxi services, serving comm...
German defense technology company developing AI-powered eVTOL unmanned aerial vehicles for milita...
Castelion exists to build the systems America and its partners need to keep a global technical ed...
We’re on a mission, and it starts with 100% reusable rockets.
Space transportation company developing orbital transfer vehicles and last-mile delivery spacecra...
Berlin defense startup making autonomous kamikaze strike drones.
Your company? Embed this profile
Add the live badge to your site — it stays current as your funding data updates.
<a href="https://indexed.vc/companies/phase-four-inc"><img src="https://indexed.vc/api/badge/company/phase-four-inc" alt="PHASE FOUR, INC. on Indexed.vc" width="260" height="76" /></a>