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 Zeno Power Develops radioisotope power systems that convert heat from decaying isotopes into years of reliable electricity for lunar surface and seabed missions Zeno Power logo
HEAD-TO-HEAD1 shared sector
MaiaSpace Zeno Power
Founded 2022 2018
Headquarters Paris, France Washington, District of Columbia
Type private private
Status operating operating
Employees 200 79
Total funding $137M $94.9M
Latest round Private Equity Series B
Sectors Launch Services, Space Propulsion Satellite Components & Subsystems, Lunar Services, Space Propulsion
Products listed 2 2
Federal contracts
Launches 2 (0%)
Leaders listed Yohann Leroy, Isabelle Quinquis, Yves Aixala Tyler Bernstein, Jonathan Segal, Jacob Matthews
News mentions 0 0
SHARED SECTORS
FREQUENTLY ASKED

How do MaiaSpace and Zeno Power compare?

Both companies work in Space Propulsion. MaiaSpace was founded in 2022 and Zeno Power in 2018.

Which is larger, MaiaSpace or Zeno Power?

MaiaSpace reports the larger workforce, with 200 employees versus 79.

Which has more launches, MaiaSpace or Zeno Power?

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.