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 Portal Space Systems Manufactures solar-thermal-propelled spacecraft buses for high-delta-v, multi-orbit maneuverability and tactically responsive space operations Portal Space Systems logo
HEAD-TO-HEAD1 shared sector
MaiaSpace Portal Space Systems
Founded 2022 2021
Headquarters Paris, France Bothell, Washington
Type private private
Status operating operating
Employees 200 22
Total funding $137M $20M
Latest round Private Equity Seed
Sectors Launch Services, Space Propulsion Space Transportation & Logistics, Satellite Manufacturing, Space Propulsion
Products listed 2 3
Federal contracts
Launches 2 (0%)
Leaders listed Yohann Leroy, Isabelle Quinquis, Yves Aixala Jeff Thornburg, Ian Vorbach, Prashaanth Ravindran
News mentions 0 0
SHARED SECTORS
FREQUENTLY ASKED

How do MaiaSpace and Portal Space Systems compare?

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

Which is larger, MaiaSpace or Portal Space Systems?

MaiaSpace reports the larger workforce, with 200 employees versus 22.

Which has more launches, MaiaSpace or Portal Space Systems?

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.