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 Muon Space Designs, builds, and operates mission-tailored LEO satellite constellations for Earth observation, climate monitoring, and national security applications Muon Space logo
HEAD-TO-HEAD1 shared sector
Epsilon3 Muon Space
Founded 2021 2021
Headquarters Los Angeles, California Mountain View, California
Type private private
Status operating operating
Employees 29 197
Total funding $18.8M $260.7M
Latest round Series A Series B
Sectors Space Software & Mission Tools, Satellite Manufacturing Earth Observation & Remote Sensing, Geospatial Intelligence & Analytics, Satellite Manufacturing
Products listed 6 6
Federal contracts
Launches
Leaders listed Laura Crabtree, Max Mednik, Audrey Fraijo Jonny Dyer, Gregory Smirin, Pascal Stang
News mentions 0 2
SHARED SECTORS
FREQUENTLY ASKED

How do Epsilon3 and Muon Space compare?

Both companies work in Satellite Manufacturing. Epsilon3 was founded in 2021 and Muon Space in 2021.

Which is larger, Epsilon3 or Muon Space?

Muon Space reports the larger workforce, with 197 employees versus 29.

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