Mitsubishi Heavy H3 vs SpaceX: Heavy & medium compared

November 2026 edition · assessment by Frontier Tech Intelligence

SpaceX ranks 1 on the Space 100 with a score of 100; Mitsubishi Heavy H3 ranks 21 with 81. SpaceX is ahead on deployment, production, commercials, progress and technology. Level on positioning, firepower and leverage. Mitsubishi Heavy H3 is based in Tokyo, Japan, SpaceX in Starbase, United States. Mitsubishi Heavy H3: Established. SpaceX: Public, founded 2002. Mitsubishi Heavy H3 is named in 0 signals and SpaceX in 2938.

Mitsubishi Heavy H3 →

Tokyo, Tokyo, Japan · Space · Launch / Heavy & medium · Established · mhi.com

Mitsubishi Heavy Industries develops and operates the H3 launch vehicle and sells launch services to government and commercial customers, including ispace.

Space 100 · rank 21 · score 81

Scores, Space (of 10)

Deployment6
Production6
Commercials4
Progress8
Technology8
Positioning10
Firepower10
Leverage10

Darker bar: ahead of the other company on that measure.

Positioning

Mitsubishi Heavy Industries' H3 is Japan's flagship heavy launcher, jointly developed with JAXA and operated as MHI's launch-service business. It completed successful H3 launches carrying HTV-X1 on Oct-25, QZS-6 on Feb-25, the low-cost Type 30 configuration with six small satellites on Jun-26, and QZS-7 on Aug-26, while also signing a 2028 launch contract with ispace for the ULTRA lunar lander on Jul-26. The program is structurally important for Japan's sovereign launch, defense, navigation, ISS-logistics, and emerging commercial lunar ecosystem, but its cadence and commercial economics remain less proven than SpaceX's.

Facts, with sources

  • QZS-7 successfully launched into quasi-geostationary orbitmhi.com
  • MHI and ispace partnership for Mission 3 ULTRA H3 launch and transportation servicesmhi.com
  • H3 launch and transportation services contract for ispace Mission 3 ULTRA lunar landermhi.com

16 facts on file.

SpaceX →

Starbase, Texas, United States · Space · Launch / Heavy & medium · Public · founded 2002 · spacex.com

SpaceX sells and operates orbital launch services using Falcon 9 and Starship, including commercial rideshare, NASA, ESA, and national-security missions.

Space 100 · rank 1 · score 100AI Core · watchlist · score 93

Scores, Space (of 10)

Deployment10
Production10
Commercials10
Progress10
Technology10
Positioning10
Firepower10
Leverage10

Darker bar: ahead of the other company on that measure.

Positioning

Through SpaceX AI (formerly xAI), the only lab that owns gigawatt-class compute outright with on-site power (Colossus, Memphis) and now rents most of it to Anthropic and Google; also the sponsor of Terafab, a planned owned fab.

Latest signals

  • TSMC capacity is fully sold out and makes two-thirds of chips that matterPeter H. Diamandis
  • Judge allows NAACP lawsuit against xAI over data center pollution to proceedTechCrunch
  • SpaceX targets November 2026 for Starship Flight 15Interesting Engineering

2938 signals name SpaceX.

Facts, with sources

  • >500mPayload
  • 1000+ employeesPayload
  • SPCX became public through an IPO in June 2026Payload

1396 facts on file.

More comparisons

Questions this page answers

Mitsubishi Heavy H3 or SpaceX: which is ahead in space?

SpaceX ranks 1 on the Space 100 with a score of 100; Mitsubishi Heavy H3 ranks 21 with 81. SpaceX is ahead on deployment, production, commercials, progress and technology. Level on positioning, firepower and leverage. Mitsubishi Heavy H3 is based in Tokyo, Japan, SpaceX in Starbase, United States. Mitsubishi Heavy H3: Established. SpaceX: Public, founded 2002. Mitsubishi Heavy H3 is named in 0 signals and SpaceX in 2938.

How do Mitsubishi Heavy H3 and SpaceX compare?

SpaceX ranks 1 on the Space 100 with a score of 100; Mitsubishi Heavy H3 ranks 21 with 81. SpaceX is ahead on deployment, production, commercials, progress and technology. Level on positioning, firepower and leverage. Mitsubishi Heavy H3 is based in Tokyo, Japan, SpaceX in Starbase, United States. Mitsubishi Heavy H3: Established. SpaceX: Public, founded 2002. Mitsubishi Heavy H3 is named in 0 signals and SpaceX in 2938. Both company files carry the scores on eight measures, the facts with sources and the latest signals.

Every comparison here comes from the same files members use every day.

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