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 SpinLaunch Builds kinetic launch systems using ground-based centrifuges and develops the Meridian LEO broadband constellation for enterprise communications SpinLaunch logo
HEAD-TO-HEAD1 shared sector
Epsilon3 SpinLaunch
Founded 2021 2014
Headquarters Los Angeles, California Long Beach, California
Type private private
Status operating operating
Employees 29 27
Total funding $18.8M $249M
Latest round Series A Series C
Sectors Space Software & Mission Tools, Satellite Manufacturing Launch Services, Satellite Communications, Satellite Manufacturing
Products listed 6 4
Federal contracts
Launches
Leaders listed Laura Crabtree, Max Mednik, Audrey Fraijo Massimiliano Ladovaz, David Wrenn
News mentions 0 16
SHARED SECTORS
FREQUENTLY ASKED

How do Epsilon3 and SpinLaunch compare?

Both companies work in Satellite Manufacturing. Epsilon3 was founded in 2021 and SpinLaunch in 2014.

Which is larger, Epsilon3 or SpinLaunch?

Epsilon3 reports the larger workforce, with 29 employees versus 27.

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