SPACE INDEX COMPANIES INSIGHTS SECTORS PRODUCTS NEWS BLOG ANSWERS RESEARCH ABOUT FOR COMPANIES BUILD / 2026.06.04
Momentus logo Momentus Operates orbital service vehicles and manufactures satellite buses for in-space transportation, hosted payloads, and proximity 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
Momentus SpinLaunch
Founded 2017 2014
Headquarters San Jose, California Long Beach, California
Type public private
Status operating operating
Employees 41 27
Total funding $249M
Latest round Series C
Sectors Space Transportation & Logistics, In-Orbit Servicing & Assembly, Satellite Manufacturing Launch Services, Satellite Communications, Satellite Manufacturing
Products listed 3 4
Federal contracts
Launches
Leaders listed John C. Rood, Rob Schwarz, Lon Ensler Massimiliano Ladovaz, David Wrenn
News mentions 0 16
SHARED SECTORS
FREQUENTLY ASKED

How do Momentus and SpinLaunch compare?

Both companies work in Satellite Manufacturing. Momentus was founded in 2017 and SpinLaunch in 2014.

Which is larger, Momentus or SpinLaunch?

Momentus reports the larger workforce, with 41 employees versus 27.

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