SPACE INDEX COMPANIES INSIGHTS SECTORS PRODUCTS NEWS BLOG ANSWERS RESEARCH ABOUT FOR COMPANIES BUILD / 2026.06.04
Epsilon3 logo Epsilon3 Provides AI-powered procedure execution and resource management software for complex engineering, manufacturing, testing, and operations vs GalaxySpace Designs, manufactures, and operates LEO broadband communication and remote sensing satellites for constellation deployment and satellite internet services GalaxySpace logo
HEAD-TO-HEAD1 shared sector
Epsilon3 GalaxySpace
Founded 2021 2018
Headquarters Los Angeles, California China
Type private private
Status operating operating
Employees 29 800
Total funding $18.8M $1.6B
Latest round Series A Series C
Sectors Space Software & Mission Tools, Satellite Manufacturing Satellite Manufacturing, Earth Observation & Remote Sensing, Satellite Communications
Products listed 6 5
Federal contracts
Launches
Leaders listed Laura Crabtree, Max Mednik, Audrey Fraijo Xu Ming, Liu Chang, Zhu Zhengxian
News mentions 0 0
SHARED SECTORS
FREQUENTLY ASKED

How do Epsilon3 and GalaxySpace compare?

Both companies work in Satellite Manufacturing. Epsilon3 was founded in 2021 and GalaxySpace in 2018.

Which is larger, Epsilon3 or GalaxySpace?

GalaxySpace reports the larger workforce, with 800 employees versus 29.

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