SPACE INDEX COMPANIES INSIGHTS SECTORS PRODUCTS NEWS BLOG ANSWERS RESEARCH ABOUT FOR COMPANIES BUILD / 2026.06.04
Firefly Aerospace logo Firefly Aerospace Designs and operates small- and medium-lift launch vehicles, lunar landers, and in-space maneuvering vehicles for defense, civil, and commercial space missions vs Momentus Operates orbital service vehicles and manufactures satellite buses for in-space transportation, hosted payloads, and proximity operations Momentus logo
HEAD-TO-HEAD1 shared sector
Firefly Aerospace Momentus
Founded 2014 2017
Headquarters Texas San Jose, California
Type public public
Status operating operating
Employees 800 41
Total funding
Latest round
Sectors Launch Services, Lunar Services, Space Transportation & Logistics Space Transportation & Logistics, In-Orbit Servicing & Assembly, Satellite Manufacturing
Products listed 6 3
Federal contracts
Launches 11 (36%)
Leaders listed Jason Kim, Darren Ma, Shea Ferring John C. Rood, Rob Schwarz, Lon Ensler
News mentions 22 0
SHARED SECTORS
FREQUENTLY ASKED

How do Firefly Aerospace and Momentus compare?

Both companies work in Space Transportation & Logistics. Firefly Aerospace was founded in 2014 and Momentus in 2017.

Which is larger, Firefly Aerospace or Momentus?

Firefly Aerospace reports the larger workforce, with 800 employees versus 41.

Which has more launches, Firefly Aerospace or Momentus?

Firefly Aerospace leads with 11 tracked launches (36% success rate).

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