SPACE INDEX COMPANIES INSIGHTS SECTORS PRODUCTS NEWS BLOG ANSWERS RESEARCH ABOUT FOR COMPANIES BUILD / 2026.06.03
Momentus logo Momentus Operates orbital service vehicles and manufactures satellite buses for in-space transportation, hosted payloads, and proximity 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
Momentus Umbra
Founded 2017 2015
Headquarters San Jose, California, USA Arlington, Virginia, USA
Type public private
Status operating operating
Employees 41 165
Total funding $124.1M
Latest round Grant
Sectors Space Transportation & Logistics, In-Orbit Servicing & Assembly, Satellite Manufacturing Earth Observation & Remote Sensing, Satellite Components & Subsystems, Satellite Manufacturing
Products listed 3 4
Federal contracts
Launches
Leaders listed John C. Rood, Rob Schwarz, Lon Ensler David Langan, Gabe Dominocielo, Todd Master
News mentions 0 0
SHARED SECTORS
FREQUENTLY ASKED

How do Momentus and Umbra compare?

Both companies work in Satellite Manufacturing. Momentus was founded in 2017 and Umbra in 2015.

Which is larger, Momentus or Umbra?

Umbra reports the larger workforce, with 165 employees versus 41.

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