Space One

Develops and launches the solid-fuel KAIROS small satellite launch vehicle from its private Spaceport Kii facility in southern Japan

WEBSITE LINKEDIN
$28M TOTAL RAISED * 3 LAUNCHES 2018 FOUNDED

What does Space One do?

SITREP

Space One is a private company active in launch services, and spaceports & range services. Based in Minato-ku, Japan, it was founded in 2018. Across the space value chain, it operates as an upstream supplier. Its lineup includes the KAIROS vehicles and the Spaceport Kii and Enhanced KAIROS components. Its first launch came in 2024.

Status Operating
HQ Minato-ku, Japan
Locations Minato-ku, Tokyo, Japan Kushimoto, Wakayama, Japan

What has Space One done recently?

ACTIVITY

How is Space One performing?

PERFORMANCE
FUNDING * ALL FUNDING
$28M TOTAL RAISED 2024 fundraising round
FLIGHT OPS ALL LAUNCHES
1 LAUNCHES '26 YTD
'24 2
'26 1

What are Space One's financials?

FINANCIALS VIEW ALL
$28M Total raised * 2024 fundraising round

What products does Space One offer?

CATALOG
Other 2
Enhanced KAIROS Spaceport Kii
vehicle 1
KAIROS

Who leads Space One?

CREW ALL PEOPLE
Masakazu Toyoda President & Representative Director
Nobuhiro Sekino Vice President

How is Space One classified?

CLASSIFICATION
Sectors
Launch Services Spaceports & Range Services
Technology
Small-Lift Solid Fuel
Orbit & Destination
LEO SSO
Application
Commercial Government-Defense
Thematic
New Space

When was Space One's profile last verified?

DATA & SOURCES
Company websitecompany profile, products, locations, press
USAspending.govfederal contract awards
Launch Library 2launch records, vehicles
Industry pressnews coverage
* Lower-confidence value, or one we haven't anchored to a primary source yet. Profile assembled from 4 sources and cross-checked continuously.
PROFILE
Last verified 2026-07-11
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