SPACE INDEX COMPANIES INSIGHTS SECTORS PRODUCTS NEWS BLOG ANSWERS RESEARCH ABOUT FOR COMPANIES BUILD / 2026.06.03
ExPace logo ExPace Operates the Kuaizhou family of solid-fueled small-lift launch vehicles for commercial and government satellite delivery to low Earth orbit vs Phase Four Developed electrodeless radio-frequency and multi-mode electric propulsion systems for satellites Phase Four logo
HEAD-TO-HEAD1 shared sector
ExPace Phase Four
Founded 2016 2015
Headquarters Wuhan, Hubei, China Hawthorne, California, USA
Type government private
Status operating closed
Employees 5
Total funding $417M $35.8M
Latest round Series B Series C
Sectors Launch Services, Space Propulsion Space Propulsion, Satellite Components & Subsystems
Products listed 2 4
Federal contracts
Launches 33 (88%)
Leaders listed Zhang Di, Zha Xiongquan Steve Kiser, M. Umair Siddiqui, Simon Halpern
News mentions 0 0
SHARED SECTORS
FREQUENTLY ASKED

How do ExPace and Phase Four compare?

Both companies work in Space Propulsion. ExPace was founded in 2016 and Phase Four in 2015.

Which has more launches, ExPace or Phase Four?

ExPace leads with 33 tracked launches (88% success rate).

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