SPACE INDEX COMPANIES INSIGHTS SECTORS PRODUCTS NEWS BLOG ANSWERS RESEARCH ABOUT FOR COMPANIES BUILD / 2026.06.03
Epsilon3 logo Epsilon3 Provides AI-powered procedure execution and resource management software for complex engineering, manufacturing, testing, and operations. vs Umbra Designs, builds, and operates SAR satellite constellations delivering sub-meter Earth imagery and flight-proven spacecraft hardware Umbra logo
HEAD-TO-HEAD1 shared sector
Epsilon3 Umbra
Founded 2021 2015
Headquarters Los Angeles, California, USA Arlington, Virginia, USA
Type private private
Status operating operating
Employees 29 165
Total funding $18.8M $124.1M
Latest round Series A Grant
Sectors Space Software & Mission Tools, Satellite Manufacturing Earth Observation & Remote Sensing, Satellite Components & Subsystems, Satellite Manufacturing
Products listed 6 4
Federal contracts
Launches
Leaders listed Laura Crabtree, Max Mednik, Audrey Fraijo David Langan, Gabe Dominocielo, Todd Master
News mentions 0 0
SHARED SECTORS
FREQUENTLY ASKED

How do Epsilon3 and Umbra compare?

Both companies work in Satellite Manufacturing. Epsilon3 was founded in 2021 and Umbra in 2015.

Which is larger, Epsilon3 or Umbra?

Umbra reports the larger workforce, with 165 employees versus 29.

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