Space startups in Japan
The directory tracks 13 space companies in Japan. They work on Earth observation, debris removal & servicing, launch, logistics and more.
Updated 7 October 2026 · 14 milestones in the last 90 days · Follow by RSS
Where things stand
As of 27 September 2026
Japan has more public companies in the directory than any country except the United States. ispace, iQPS, Astroscale, Synspective and Axelspace all listed on the Tokyo Stock Exchange's Growth Market between 2023 and 2025. None of the Japanese companies in the directory has shut down.
Astroscale works on removing debris from orbit. Its ADRAS-J spacecraft came within 15 metres of a discarded rocket stage in December 2024, the closest any commercial spacecraft had come to a piece of debris. The next mission, ADRAS-J2, is meant to capture a three-tonne rocket stage, and in September 2026 Astroscale booked it on Isar Aerospace's Spectrum rocket. ispace has crashed two Moon landers, in 2023 and 2025. It has moved its third mission to 2028, on a new lander called ULTRA.
Space One has lost all three of its Kairos rockets, most recently in March 2026. Interstellar Technologies flew MOMO-3 to space in 2019, the first privately developed Japanese rocket to get there, and is building ZERO, a launcher that burns biomethane. Space BD sells rideshare space on Japanese rockets and flew six payloads on H3 Flight 6 in June 2026. Pale Blue makes thrusters that run on water, and fired its first one in orbit in 2023 aboard a Sony satellite.
Latest milestones
Every dated event from the companies below, newest first, each with its source.
Show 40 earlier milestones
Recently added
All 13 companies
Companies still operating first, then by latest news.
Water-fuelled satellite propulsion
ZERO, the biomethane launcher
The StriX SAR constellation
Lunar robotic spacecraft
All-weather SAR imagery
Space debris removal
Lasers for debris removal
Launch and ISS brokerage
Rocket engines that burn plastic
Optical microsatellites
Optical relay between satellites
Space OneJapan’s solid-fuel rocket venture
Bringing orbit-made materials home
How many space startups are there in Japan?
Space Bandits tracks 13 space companies in Japan. Of those, 8 are active startups, and 5 have grown past the startup stage.
What do space startups in Japan work on?
The biggest groups are Earth observation (3), debris removal & servicing (2) and launch (2), out of 7 sectors in all.
What is the latest news from space startups in Japan?
The most recent milestone on record is from Pale Blue, dated 7 October 2026: "Wins additional SBIR Phase 3 funding from Japan's science ministry for its in-orbit demonstration."
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