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 Spacebilt Develops reusable spacecraft through on-orbit assembly and reprovisioning, extending operations and cutting lifecycle costs by 80% Spacebilt logo
HEAD-TO-HEAD2 shared sectors
Momentus Spacebilt
Founded 2017 1998
Headquarters San Jose, California London, Florida
Type public private
Status operating operating
Employees 41 7
Total funding
Latest round
Sectors Space Transportation & Logistics, In-Orbit Servicing & Assembly, Satellite Manufacturing In-Orbit Servicing & Assembly, In-Space Manufacturing, Space Transportation & Logistics
Products listed 3 3
Federal contracts
Launches
Leaders listed John C. Rood, Rob Schwarz, Lon Ensler Dave Swan, Dennis Wingo, Steve Kwast
News mentions 0 0
SHARED SECTORS
FREQUENTLY ASKED

How do Momentus and Spacebilt compare?

Both companies work in Space Transportation & Logistics, In-Orbit Servicing & Assembly. Momentus was founded in 2017 and Spacebilt in 1998.

Which is larger, Momentus or Spacebilt?

Momentus reports the larger workforce, with 41 employees versus 7.

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