SPACE INDEX COMPANIES INSIGHTS SECTORS PRODUCTS NEWS BLOG ANSWERS RESEARCH ABOUT FOR COMPANIES BUILD / 2026.06.04
MaiaSpace logo MaiaSpace Develops a partially reusable methane-fueled mini-launcher for small satellite delivery to low Earth and sun-synchronous orbits vs Sierra Space Designs and manufactures satellite platforms, reusable spaceplanes, expandable habitats, and propulsion systems for national security and civil space Sierra Space logo
HEAD-TO-HEAD1 shared sector
MaiaSpace Sierra Space
Founded 2022 2021
Headquarters Paris, France Louisville, Colorado
Type private private
Status operating operating
Employees 200 1,072
Total funding $137M $2.2B
Latest round Private Equity Series C
Sectors Launch Services, Space Propulsion Satellite Manufacturing, Space Propulsion, Space Stations & Habitats
Products listed 2 7
Federal contracts 1 ($6.5M)
Launches 2 (0%)
Leaders listed Yohann Leroy, Isabelle Quinquis, Yves Aixala Dan Jablonsky, Janet Kavandi, Troy Lahr
News mentions 0 0
SHARED SECTORS
FREQUENTLY ASKED

How do MaiaSpace and Sierra Space compare?

Both companies work in Space Propulsion. MaiaSpace was founded in 2022 and Sierra Space in 2021.

Which is larger, MaiaSpace or Sierra Space?

Sierra Space reports the larger workforce, with 1,072 employees versus 200.

Which has more US federal contracts, MaiaSpace or Sierra Space?

Sierra Space has been awarded more, with $6.5M across 1 awards.

Which has more launches, MaiaSpace or Sierra Space?

MaiaSpace leads with 2 tracked launches (0% success rate).

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