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 Spire Global Operates a multipurpose nanosatellite constellation delivering weather, aviation, and RF intelligence data via space-based sensors and ground infrastructure Spire Global logo
HEAD-TO-HEAD1 shared sector
Epsilon3 Spire Global
Founded 2021 2012
Headquarters Los Angeles, California, USA Vienna, Virginia, USA
Type private public
Status operating operating
Employees 29 352
Total funding $18.8M
Latest round Series A
Sectors Space Software & Mission Tools, Satellite Manufacturing Earth Observation & Remote Sensing, Geospatial Intelligence & Analytics, Ground Segment & Networks, Satellite Manufacturing
Products listed 6 4
Federal contracts
Launches
Leaders listed Laura Crabtree, Max Mednik, Audrey Fraijo Peter Platzer, Boyd Johnson, David Myers
News mentions 0 1
SHARED SECTORS
FREQUENTLY ASKED

How do Epsilon3 and Spire Global compare?

Both companies work in Satellite Manufacturing. Epsilon3 was founded in 2021 and Spire Global in 2012.

Which is larger, Epsilon3 or Spire Global?

Spire Global reports the larger workforce, with 352 employees versus 29.

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