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 Space One Develops and launches the solid-fuel KAIROS small satellite launch vehicle from its private Spaceport Kii facility in southern Japan Space One logo
HEAD-TO-HEAD1 shared sector
MaiaSpace Space One
Founded 2022 2018
Headquarters Paris, France Japan
Type private private
Status operating operating
Employees 200
Total funding $137M $28M
Latest round Private Equity Series A
Sectors Launch Services, Space Propulsion Launch Services, Spaceports & Range Services
Products listed 2 3
Federal contracts
Launches 2 (0%) 3 (0%)
Leaders listed Yohann Leroy, Isabelle Quinquis, Yves Aixala Masakazu Toyoda, Nobuhiro Sekino
News mentions 0 99
SHARED SECTORS
FREQUENTLY ASKED

How do MaiaSpace and Space One compare?

Both companies work in Launch Services. MaiaSpace was founded in 2022 and Space One in 2018.

Which has more launches, MaiaSpace or Space One?

Space One leads with 3 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.