SPACE INDEX COMPANIES INSIGHTS SECTORS PRODUCTS NEWS BLOG ANSWERS RESEARCH ABOUT FOR COMPANIES BUILD / 2026.06.03
Hadrian logo Hadrian Operates autonomous precision manufacturing factories producing components for aerospace and defense companies, powered by AI-driven factory automation software vs Phase Four Developed electrodeless radio-frequency and multi-mode electric propulsion systems for satellites Phase Four logo
HEAD-TO-HEAD1 shared sector
Hadrian Phase Four
Founded 2021 2015
Headquarters Torrance, California, USA Hawthorne, California, USA
Type private private
Status operating closed
Employees 289 5
Total funding $539M $35.8M
Latest round Series C Series C
Sectors Satellite Components & Subsystems, Space Defense Systems Space Propulsion, Satellite Components & Subsystems
Products listed 4 4
Federal contracts
Launches
Leaders listed Chris Power, West Owens, Mike Manazir Steve Kiser, M. Umair Siddiqui, Simon Halpern
News mentions 0 0
SHARED SECTORS
FREQUENTLY ASKED

How do Hadrian and Phase Four compare?

Both companies work in Satellite Components & Subsystems. Hadrian was founded in 2021 and Phase Four in 2015.

Which is larger, Hadrian or Phase Four?

Hadrian reports the larger workforce, with 289 employees versus 5.

Numbers refresh on every render against the live Space Index database. Federal contract data from USAspending.gov; launches from LaunchLibrary2.