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 York Space Systems Designs, mass-manufactures, and operates standardized spacecraft platforms and end-to-end mission solutions for national security and commercial constellation customers. York Space Systems logo
HEAD-TO-HEAD1 shared sector
Momentus York Space Systems
Founded 2017 2014
Headquarters San Jose, California, USA Greenwood Village, Colorado, USA
Type public public
Status operating operating
Employees 41 367
Total funding
Latest round
Sectors Space Transportation & Logistics, In-Orbit Servicing & Assembly, Satellite Manufacturing Satellite Manufacturing, Ground Segment & Networks, Space Defense Systems
Products listed 3 5
Federal contracts
Launches
Leaders listed John C. Rood, Rob Schwarz, Lon Ensler Dirk Wallinger, Mike Lajczok, Melanie Preisser
News mentions 0 13
SHARED SECTORS
FREQUENTLY ASKED

How do Momentus and York Space Systems compare?

Both companies work in Satellite Manufacturing. Momentus was founded in 2017 and York Space Systems in 2014.

Which is larger, Momentus or York Space Systems?

York Space Systems reports the larger workforce, with 367 employees versus 41.

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