Data Centers in Japan

Note: We are not affiliated with the data centers or companies listed below. Listings are compiled from public sources and have not been independently confirmed by us — please verify directly with the company before relying on this information.

As of the latest update, Japan has confirmed data center activity across 4 states and 7 cities, with 22 companies represented.

4States

7Cities

22Companies

8AI Data Centers

Regions

Cities

Companies

AllGeneral cloud providerGeneral colocation providerAI cloud providerAI colocation provider

AI Data Centers in Japan

AirTrunk OSK1 Osaka West AI DATA CENTER CARRIER-NEUTRALPENDING REVIEW
OSK1, AirTrunk's first Osaka facility, is a 16,500sqm development in West Osaka with a 20MW capacity dedicated to high-scale cloud requirements.
Colt Data Centre Services Colt Tokyo Otemachi / Shiohama / Inzai Data Centres AI DATA CENTER CARRIER-NEUTRALPENDING REVIEW
Colt's Tokyo Otemachi data centre is located inside the Otemachi Financial City South Tower in Chiyoda, placing it directly in Tokyo's financial district, while its Inzai campus (Inzai One, Two, and a newer Inzai 4 building) sits outside the city and is described as already 100% pre-let.
Colt Data Centre Services Colt Osaka / Minoh Campus Data Centre AI DATA CENTER PENDING REVIEW
Colt formed a joint venture with real estate firm ESR to develop the first phase of a 130MW hyperscale site on its Minoh Campus in Osaka, with the initial 65MW phase designed and built by the JV and operated by Colt.
Digital Realty NRT14 (MC Digital Realty) AI DATA CENTER PENDING REVIEW
Operated through MC Digital Realty, a 50/50 joint venture with Mitsubishi Corporation, NRT14 was certified by NVIDIA for its ability to run high-density AI workloads of 100kW or more per rack.
Digital Realty KIX13 AI DATA CENTER PENDING REVIEW
In 2023, KIX13 became certified as an NVIDIA DGX-Ready Data Center, one of the earliest such certifications for Digital Realty in Asia Pacific.
EdgeConneX EdgeConneX Greater Osaka Platform (Kyotanabe / Yawata) AI DATA CENTER PENDING REVIEW
Announced in January and expanded in August 2025, this 350MW two-site platform is designed to be one of the largest data center developments in the Kansai area, engineered for over 600kW per rack to support NVIDIA, AMD, and Intel AI deployments.
MC Digital Realty NRT Campus (NRT10, NRT12, NRT14) AI DATA CENTER CARRIER-NEUTRALPENDING REVIEW
In 2026, the NRT14 building on this campus became one of the first facilities in Japan certified under NVIDIA's DGX-Ready Data Center program for GB200/Blackwell-based systems.
Princeton Digital Group TY1 AI DATA CENTER PENDING REVIEW
PDG and Lendlease describe TY1's 96MW campus, built over 33,000 m², as one of Japan's largest data center campuses, delivered on a built-to-suit basis under a US$1 billion investment.

Common Questions

How many data centers are in Japan?

We've currently tracked 22 companies operating across 7 cities in Japan — see the lists above. This reflects what we've researched so far, not necessarily every company or location present.

What are the major colocation and cloud providers in Japan?

See the company list above, grouped by type.

Is there an AI data center in Japan?

Yes — we've currently tracked 8 AI data centers from 6 companies in Japan. See the AI Data Centers section above for the confirmed facilities.

Own or operate a data center in Japan? Add your listing →

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Disclaimer: This page was compiled with a structured research and verification process from publicly available sources. A human decides whether each page is published, but individual facts — addresses, contact details, and whether a company operates in a given location — are not independently fact-checked by us. Where you see a “Verified” badge, it means multiple independent sources agreed, not that we personally confirmed it. Companies open, close, relocate, and change contact details without always updating public records, so treat everything here as a starting point, not a confirmed source. If you're making a business decision, verify directly with the provider. Notice something outdated or incorrect? You're welcome to let us know — this site is updated periodically.