SPACE INDEX COMPANIES INSIGHTS SECTORS PRODUCTS NEWS BLOG ANSWERS RESEARCH ABOUT FOR COMPANIES BUILD / 2026.06.03
Deep Blue Aerospace logo Deep Blue Aerospace Develops reusable liquid-fueled launch vehicles and kerosene rocket engines for commercial orbital and suborbital launch services vs Phase Four Developed electrodeless radio-frequency and multi-mode electric propulsion systems for satellites Phase Four logo
HEAD-TO-HEAD1 shared sector
Deep Blue Aerospace Phase Four
Founded 2016 2015
Headquarters 江苏省无锡国家高新技术产业开发区城南路256号 Hawthorne, California, USA
Type private private
Status operating closed
Employees 400 5
Total funding $170M $35.8M
Latest round Series B Series C
Sectors Launch Services, Space Propulsion Space Propulsion, Satellite Components & Subsystems
Products listed 0 4
Federal contracts
Launches 1 (0%)
Leaders listed Huo Liang Steve Kiser, M. Umair Siddiqui, Simon Halpern
News mentions 0 0
SHARED SECTORS
FREQUENTLY ASKED

How do Deep Blue Aerospace and Phase Four compare?

Both companies work in Space Propulsion. Deep Blue Aerospace was founded in 2016 and Phase Four in 2015.

Which is larger, Deep Blue Aerospace or Phase Four?

Deep Blue Aerospace reports the larger workforce, with 400 employees versus 5.

Which has more launches, Deep Blue Aerospace or Phase Four?

Deep Blue Aerospace leads with 1 tracked launches (0% success rate).

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