# Mitsui Fudosan: physical AI company

Canonical ID: `f43e49aa-29b8-4055-b42f-525cda039aeb`

## Key facts

- **Kobe tunnel data center (company-stated, Oct 2026):** On Oct 6 2026, with Kumagai Gumi and Getworks, announced what they call [Japan](/locations/japan.md)'s first commercial data center in an existing tunnel.
- **Kobe site:** About 3 km (about 17,000 sq m) of a 14.5 km former belt conveyor tunnel that [Kobe](/locations/kobe-japan.md) city used until Sep 2005 to haul fill.
- **Tunnel conditions:** Mostly deeper than about 40 m, and confirmed at 15 C to 20 C year-round.
- **Lease tender:** Mitsui Fudosan and Kumagai Gumi won the conditional lease tender on Sep 4 2026.
- **Kobe capacity and timing (company-stated):** Getworks containers with groundwater-circulating water cooling, targeting up to 20 MW; initial service planned for late 2027.
- **Kobe roles:** Kumagai Gumi is the planned builder and Getworks the container operator.
- **Replication plan (company-stated):** Aims to repeat the model in other idle tunnels and mine sites.

- **Slug:** mitsui-fudosan
- **Status:** public

## Models

_No models registered._

## Supplies to

_No verified supply relationships on file. Supply-chain coverage is being added across the registry; check back as the seed populates this company's outbound edges._

_Outbound supply edges. Each appears when verified with at least two strong sources. Sources are append-only; corrections add new sources rather than rewrite history._

## Common questions

### What is Mitsui Fudosan?

Japanese real estate developer building data centers, including an underground data center in a former [Kobe](/locations/kobe-japan.md) belt conveyor tunnel with Kumagai Gumi and Getworks.

### What does Mitsui Fudosan make?

Mitsui Fudosan has no robot models recorded on the DEPLOY registry.

### Is Mitsui Fudosan publicly traded?

Yes. Mitsui Fudosan is publicly traded on public markets, per the DEPLOY registry.

### How can I invest in Mitsui Fudosan?

Mitsui Fudosan is publicly traded (public markets), so its shares can be bought through any broker.

### Who owns Mitsui Fudosan?

Mitsui Fudosan is publicly held by its shareholders.

### Is Mitsui Fudosan a top robotics company?

On DEPLOY's intelligence score, which blends verified deployments, funding, hiring, media, safety, and IP signals, Mitsui Fudosan ranks in roughly the top 96% of companies tracked by the registry.


## Sources (4)

1. https://www.mitsuifudosan.co.jp/corporate/news/2026/1006/ · 2026-10-06
2. https://www.kumagaigumi.co.jp/news/2026/pr-20261006-004372.html · 2026-10-06
3. https://asia.nikkei.com/business/technology/artificial-intelligence/mitsui-fudosan-to-build-data-center-in-abandoned-tunnel-in-japan · 2026-10-06
4. https://x.com/OddlyTrueJp/status/2107501329081880676 · 2026-10-06

## The verified answers

- [Which companies have the most robots deployed](/which-companies-have-the-most-robots-deployed.md)
- [Which operators run the most robots](/which-operators-run-the-most-robots.md)
- [Which robot operators cover the most countries](/which-robot-operators-cover-the-most-countries.md)

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