SPACE INDEX COMPANIES INSIGHTS SECTORS PRODUCTS NEWS BLOG ANSWERS RESEARCH ABOUT FOR COMPANIES BUILD / 2026.06.04
Isar Aerospace logo Isar Aerospace Designs, manufactures, and operates the Spectrum launch vehicle for dedicated and rideshare small satellite missions from European spaceports 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
Isar Aerospace Space One
Founded 2018 2018
Headquarters Ottobrunn, Germany Japan
Type private private
Status operating operating
Employees 400
Total funding $615M $28M
Latest round Convertible Note Series A
Sectors Launch Services Launch Services, Spaceports & Range Services
Products listed 2 3
Federal contracts
Launches 8 (0%) 3 (0%)
Leaders listed Daniel Metzler, Josef Fleischmann, Stella Guillen Masakazu Toyoda, Nobuhiro Sekino
News mentions 0 99
SHARED SECTORS
FREQUENTLY ASKED

How do Isar Aerospace and Space One compare?

Both companies work in Launch Services. Isar Aerospace was founded in 2018 and Space One in 2018.

Which has more launches, Isar Aerospace or Space One?

Isar Aerospace leads with 8 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.