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 Reflect Orbital Builds and operates a constellation of orbital mirror satellites that redirect natural sunlight to targeted areas on Earth for extended solar energy generation and on-demand illumination Reflect Orbital logo
HEAD-TO-HEAD1 shared sector
Momentus Reflect Orbital
Founded 2017 2021
Headquarters San Jose, California Los Angeles, California
Type public private
Status operating operating
Employees 41 50
Total funding $28.7M
Latest round Series A
Sectors Space Transportation & Logistics, In-Orbit Servicing & Assembly, Satellite Manufacturing Satellite Manufacturing, Suborbital & High-Altitude
Products listed 3 2
Federal contracts
Launches
Leaders listed John C. Rood, Rob Schwarz, Lon Ensler Ben Nowack, Tristan Semmelhack, Ally Stone
News mentions 0 0
SHARED SECTORS
FREQUENTLY ASKED

How do Momentus and Reflect Orbital compare?

Both companies work in Satellite Manufacturing. Momentus was founded in 2017 and Reflect Orbital in 2021.

Which is larger, Momentus or Reflect Orbital?

Reflect Orbital reports the larger workforce, with 50 employees versus 41.

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