SPACE INDEX COMPANIES INSIGHTS SECTORS PRODUCTS NEWS BLOG ANSWERS RESEARCH ABOUT FOR COMPANIES BUILD / 2026.06.03
Impulse Space logo Impulse Space Designs and operates orbital transfer vehicles that move payloads between orbits using high-thrust chemical propulsion, delivering to GEO in under a day. vs Momentus Operates orbital service vehicles and manufactures satellite buses for in-space transportation, hosted payloads, and proximity operations. Momentus logo
HEAD-TO-HEAD2 shared sectors
Impulse Space Momentus
Founded 2021 2017
Headquarters Redondo Beach, California, USA San Jose, California, USA
Type private public
Status operating operating
Employees 292 41
Total funding $895M
Latest round Series C
Sectors Space Transportation & Logistics, Satellite Manufacturing, Space Propulsion Space Transportation & Logistics, In-Orbit Servicing & Assembly, Satellite Manufacturing
Products listed 5 3
Federal contracts
Launches
Leaders listed Tom Mueller, Eric Romo, Kevin Miller John C. Rood, Rob Schwarz, Lon Ensler
News mentions 3 0
SHARED SECTORS
FREQUENTLY ASKED

How do Impulse Space and Momentus compare?

Both companies work in Space Transportation & Logistics, Satellite Manufacturing. Impulse Space was founded in 2021 and Momentus in 2017.

Which is larger, Impulse Space or Momentus?

Impulse Space reports the larger workforce, with 292 employees versus 41.

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