Group Companies
As of September 30, 2025
Tokyo Electric Power Company Holdings
- Consolidated Subsidiaries
- TODEN REAL ESTATE Co., Inc.
- Tokyo Power Technology Ltd.
- Tokyo Electric Power Services Company, Limited (TEPSCO)
- TEPCO SYSTEMS CORPORATION
- TEPCO RESOURCES INC.
- TEPCO HUMMING WORK CO., LTD.
- Toso Facility & Service Co., Ltd.
- TEPCO Ventures, Inc.
- TEPCO Fintech, Inc.
- TEPCO Global Energy Pte. Ltd.
- Tokyo Electric Power Timeless Capital, Inc.
- Recyclable-Fuel Storage Company
- ATEMA KOGEN RESORT INC.
- Tousou Mirai Technology Co. Ltd.
- TOUSOU MIRAI MANUFACTURING, INC
- e-Mobility Power Co., Inc.
- Iitate Bio Partners Company Limited
- TOSETSU CIVIL ENGINEERING CONSULTANT INC.
- TEPSCO Vietnam
- TF Uchisaiwaicho TMK
- TOKYO RECORDS MANAGEMENT CO., INC
- Others
- Affiliated Companies
- TNcross Corp.
- KK6 Safety Measures Joint Venture Corporation
- Tsumagoi Storage Power Station LCC.
- Fukushima Power Transmission Co.,Ltd.
- Hitachi Systems Power Services, Ltd.
- Energy Asia Holdings, Inc.
- Japan Nuclear Fuel Limited
- The Japan Atomic Power Company
- TOKYO ENERGY & SYSTEMS INC.
- Yamanashi Hydrogen Company, Inc.
- Nuclear Fuel Transport Company, Ltd.
- JAPAN NUCLEAR SECURITY SYSTEM CO., LTD.
- International Nuclear Energy Development of Japan Co., Ltd.
- SAP-Japan Co., Ltd.
- Solar Rooftop CE 9 Co., Ltd.
- ESR-TEPCO RENEWABLES JOINT VENTURE PTE. LTD.
- Harajuku no Morimamoru, Co., Ltd.
- Hakusan Corporation
- ESR-TEPCO SINGAPORE 1 HOLDCO PTE. LTD.
- ESR-TEPCO SINGAPORE ASSETCO ALPHA PTE. LTD.
- Others
TEPCO Fuel & Power
- Affiliated Companies
- JERA Co., Inc
TEPCO Power Grid
- Consolidated Subsidiaries
- Tokyo Densetsu Service Co., Ltd.
- Tepco Town Planning Corporation Limited
- Tokyo Land Management Corporation
- Tepco Solution Advance Co., Ltd.
- TEPCO Power Grid UK Limited
- Agile Energy X, Inc.
- TEPCO LOGISTICS CO., LTD.
- Energy gateway Co., Ltd.
- TEPCO OPTICAL NETWORK ENGINEERING INC.
- FI1 Limited
- TEPCO Digital Infrastructure Co., Ltd.
- Affiliated Companies
- SHIN-NIHON HELICOPTER CO., LTD.
- DEEP C Green Energy (Hong Kong) Limited
- NTT TEPCO DetaCenter Specified Purpose CO.,
- Rakuten Mobile Infra Solution, Inc.
- KANDENKO CO., LTD.
- Greenway Grid Global Pte. Ltd.
- Grid Sky Way LLP
- TAKAOKA TOKO HOLDINGS CO., LTD.
- GDBL Corp.
- AT TOKYO Corporation
- The Japan Utility Subway Company, Incorporated
- Daido Industrial Arts Co., Ltd.
- SHOEI Electric Industry CO., LTD.
- Triton Knoll OFTO Bidco Limited
- Tower Line Solution Co., Ltd.
- Toshiba Toko Meter Systems Co., LTD
- Triton Knoll OFTO Limited
- PT Greenway Grid Indonesia
- Growth Ring Grid Pte. Ltd.
TEPCO Energy Partner
- Consolidated Subsidiaries
- Tepco Customer Service Corporation Limited
- FAMILYNET JAPAN CORPORATION
- JAPAN FACILITY SOLUTIONS, INC
- PinT
- Japan Natural Energy Company Limited
- TEPCO HomeTech, Inc.
- TEPCO Energy Partner International (Thailand) Co., Ltd.
- NF Power Service Co.,Ltd
- Others
- Affiliated Companies
- Tokyo Energy Alliance Co., Ltd.
- TEPCO i-Frontiers Co., Ltd.
- T&T Energy Co., Ltd.
- LIXIL TEPCO Smart Partners Co., Ltd.
- Prime Solutions Co., Ltd.
- Evergreen Marketing Co., Ltd.
- Toranomon Energy Network Co., Ltd.
- TOKYO TOSHI SERVICE COMPANY
- HP Capital Co., Ltd.
- Houseplus Architectural Inspection, Inc.
- Mitsui Real Estate TEPCO Energy Co., Ltd.
- Others
TEPCO Renewable Power
- Consolidated Subsidiaries
- TEPCO Renewable Power Singapore Pte. Ltd.
- Flotation Energy Ltd
- The Tokyo Electric Generation Co., Ltd.
- Flotation Energy Taiwan Ltd
- Blackwater Offshore Wind Holdco Limited
- Blackwater OWL Offshore Wind Farm Limited
- Flotation Energy Pty Ltd
- Flotation Energy (Japan) Co. Ltd.
- Greystones Offshore Wind Holdco Limited
- Greystones OWL Offshore Wind Farm Limited
- Sea Dragon Holdco Ltd
- Flotation Energy Sea Dragon Pty Ltd
- SEADRAGON OFFSHORE WIND PTY LTD
- TAIWAN OFFSHORE WIND LTD
- Tsuru Biomass Power Generation LLC.
- Affiliated Companies
- Mirai-Enoshima LLC.
- Viet Hydro Pte. Ltd.
- Kencana Energi Lestari
- TetraSpar Demonstrator ApS
- Oyasu Geothermal Co., Ltd.
- Green Volt Holdco Ltd
- Cenos Holdco Ltd
- Aqua Connect Namie Corporation
- JSC Dariali Energy
- Vietnam Power Development Joint Stock Company
- Offshore Wind Limited
- White Cross Offshore Wind Holdco Ltd
- Green Volt Offshore Windfarm Ltd
- Cenos Offshore Windfarm Ltd
- North Connect Ltd
