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 ThinkOrbital Defending, servicing, and building space infrastructure with X-ray inspection, robotic toolkits, and autonomously assembled orbital platforms ThinkOrbital logo
HEAD-TO-HEAD1 shared sector
Momentus ThinkOrbital
Founded 2017 2021
Headquarters San Jose, California Boulder, Colorado
Type public private
Status operating operating
Employees 41 19
Total funding $5.9M
Latest round Seed
Sectors Space Transportation & Logistics, In-Orbit Servicing & Assembly, Satellite Manufacturing Space Domain Awareness, In-Orbit Servicing & Assembly, In-Space Manufacturing
Products listed 3 3
Federal contracts
Launches
Leaders listed John C. Rood, Rob Schwarz, Lon Ensler Lee Rosen, Sebastian Asprella, Vojtech Holub
News mentions 0 0
SHARED SECTORS
FREQUENTLY ASKED

How do Momentus and ThinkOrbital compare?

Both companies work in In-Orbit Servicing & Assembly. Momentus was founded in 2017 and ThinkOrbital in 2021.

Which is larger, Momentus or ThinkOrbital?

Momentus reports the larger workforce, with 41 employees versus 19.

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