Facilities (73)
- Keihanna OSK11 Data Center (NTT DATA Group)OperationalE3Official company or government statementView on map
Kyoto Seika (Soraku)Status as of: 2026-0430 MW (IT load)
- Kansai Electric CyrusOne OSK1 Data CenterAnnouncedE3Official company or government statementView on map
Kyoto Seika (Soraku)Status as of: 2024-09-1248 MW (IT load)
Hyogo Kobe
Hokkaido IshikariStatus as of: 2025-06-25
Hokkaido IshikariStatus as of: 2024-10-01
- White Data Center (Bibai, snow cooling)OperationalE3Official company or government statementView on map
Hokkaido Bibai
- Hokkaido Tomakomai AI Data CenterUnder constructionE3Official company or government statementView on map
Hokkaido TomakomaiStatus as of: 2025-04-15300 MW (Planned maximum (incl. future))
- 宗谷グリーンデータセンターⅠ(稚内・風力発電直結)Under constructionE3Official company or government statementLocation not public
Hokkaido 稚内市Status as of: 2026-07-21
Name shown in Japanese (English name not recorded)
Hokkaido IshikariStatus as of: 2026-08-0115 MW (Utility supply capacity)
Name shown in Japanese (English name not recorded)
- Tomakomai AI Factory (AI Tech Tomakomai / Kankyo Friendly HD)AnnouncedE3Official company or government statementView on map
Hokkaido TomakomaiStatus as of: 2026-07-0310 MW (Planned maximum (incl. future))
Chiba InzaiStatus as of: 2025-02-1040 MW (Planned maximum (incl. future))
Chiba Inzai8 MW (IT load)
Chiba Inzai15 MW (IT load)
Chiba Inzai27 MW (IT load)
Chiba InzaiStatus as of: 2025-02-2620 MW (IT load)
Chiba InzaiStatus as of: 2023-04
Chiba ShiroiStatus as of: 2019
Chiba InzaiStatus as of: 2025
Chiba InzaiStatus as of: 2021-0939 MW (IT load)
- MFIP Inzai (Mitsui Fudosan, formerly Inzai Technology Building)OperationalE3Official company or government statementView on map
Chiba InzaiStatus as of: 2014-02
- NTT DATA Tokyo TKY12 (Inzai/Shiroi Campus)AnnouncedE3Official company or government statementView on map
Chiba Shiroi250 MW (Planned maximum (incl. future))
- STACK Infrastructure TKY01A Data CenterOperationalE3Official company or government statementView on map
Chiba InzaiStatus as of: 2024-1018 MW (IT load)
Chiba InzaiStatus as of: 2025-08-06
Chiba InzaiStatus as of: 2021-0354 MW (IT load)
Chiba InzaiStatus as of: 2023-06-2936 MW (Planned maximum (incl. future))
Chiba InzaiStatus as of: 2025-11-07
- Northern Chiba Green Data Center (DASP / detailed location undisclosed)OperationalE3Official company or government statementLocation not public
ChibaStatus as of: 2026-03
Chiba InzaiStatus as of: 2025
- AIST AI Data Center Building (ABCI, Kashiwa)OperationalE3Official company or government statementView on map
Chiba Kashiwa
Osaka Osaka14.4 MW (Type unknown)
Osaka Osaka
Osaka Osaka
Osaka SakaiStatus as of: 2026-01-22
Osaka Ibaraki7.6 MW (IT load)
Osaka MinohStatus as of: 2019-0625 MW (IT load)
Osaka IbarakiStatus as of: 2026-07-1636 MW (IT load)
Osaka 大阪市中央区Status as of: 2026-06-23
Name shown in Japanese (English name not recorded)
Osaka MinohStatus as of: 2021-12-2410 MW (IT load)
Osaka MinohStatus as of: 2024-06-0514.4 MW (IT load)
Osaka SakaiStatus as of: 2026-07-16150 MW (Utility supply capacity)
Miyagi 宮城郡七ヶ浜町Status as of: 2026-07-31
Name shown in Japanese (English name not recorded)
- Matsue Nakao District Industrial Park (Data Center Attraction)AnnouncedE3Official company or government statementView on map
Shimane MatsueStatus as of: 2026-02
- Nanyo Green Data Center (DASP / detailed location undisclosed)OperationalE3Official company or government statementLocation not public
EhimeStatus as of: 2026-03
Tokyo Bunkyo
Tokyo Chuo
Tokyo Shinjuku
Tokyo Chuo4.8 MW (Type unknown)
Tokyo Ota
Tokyo Bunkyo
Tokyo Koto
Tokyo Minato
Tokyo Shinagawa
Tokyo Koto
Tokyo Chiyoda
Tokyo Koto
Tokyo Shinagawa
Tokyo Shinagawa
Tokyo Shinagawa
- GLP Akishima Project (8 Data Center Buildings)Pre-consultationE3Official company or government statementView on map
Tokyo AkishimaStatus as of: 2025-04
- SoftBank Tokyo Fuchu Data CenterOperationalE3Official company or government statementLocation not public
Tokyo FuchuStatus as of: 2020-1250 MW (Utility supply capacity)
Tokyo HinoStatus as of: 2026-07-09
- Digital Edge TYO4/5/6 Yokohama CampusOperationalE3Official company or government statementView on map
Kanagawa Yokohama18.5 MW (Type unknown)
Kanagawa 相模原市中央区Status as of: 2023-10
- 相模原データセンターキャンパス計画(グッドマン・麻溝台/新磯野北部地区)AnnouncedE3Official company or government statementLocation not public
Kanagawa SagamiharaStatus as of: 2026-05-28
Name shown in Japanese (English name not recorded)
Fukuoka KitakyushuStatus as of: 2023-08120 MW (Planned maximum (incl. future))
Fukuoka ItoshimaStatus as of: 2024-02-05300 MW (Utility supply capacity)
Fukuoka KurumeStatus as of: 2026-07-16
- Fukuoka Kitakyushu Data Center (Asian Frontier)OperationalE3Official company or government statementView on map
Fukuoka Kitakyushu (Yahatahigashi)Status as of: 2008
Ibaraki TsukubaStatus as of: 2024-01-25
Name shown in Japanese (English name not recorded)
Kagawa 綾歌郡綾川町Status as of: 2026-03-03
Name shown in Japanese (English name not recorded)
- Iriki Industrial Park AI Data Center (Digital Dynamic)AnnouncedE3Official company or government statementView on map
Kagoshima SatsumasendaiStatus as of: 2025-11-2519 MW (Planned maximum (incl. future))
Kagoshima SatsumasendaiStatus as of: 2026-07-18
Kagoshima 出水市Status as of: 2026-08-01
Name shown in Japanese (English name not recorded)