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 Starfish Space Develops autonomous satellite servicing vehicles using electric propulsion for life extension, disposal, and on-orbit maneuvering Starfish Space logo
HEAD-TO-HEAD1 shared sector
Momentus Starfish Space
Founded 2017 2019
Headquarters San Jose, California Tukwila, Washington
Type public private
Status operating operating
Employees 41 75
Total funding $70M
Latest round Series A
Sectors Space Transportation & Logistics, In-Orbit Servicing & Assembly, Satellite Manufacturing In-Orbit Servicing & Assembly, Space Propulsion, Space Sustainability & Debris Removal
Products listed 3 6
Federal contracts
Launches
Leaders listed John C. Rood, Rob Schwarz, Lon Ensler Austin Link, Trevor Bennett, Ari Juster
News mentions 0 0
SHARED SECTORS
FREQUENTLY ASKED

How do Momentus and Starfish Space compare?

Both companies work in In-Orbit Servicing & Assembly. Momentus was founded in 2017 and Starfish Space in 2019.

Which is larger, Momentus or Starfish Space?

Starfish Space reports the larger workforce, with 75 employees versus 41.

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