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- Tohoku Electric Power Co., Inc.
- Tohoku Electric Power Network Co., Inc.
- Yurtec Co.,Inc.
- Tohoku Electric Manufacturing Co., Ltd.
- Tohoku Electrical Safety Inspection Association
- Tohoku Electric Power Engineering & Construction Co.,Inc.
- Kitanihon Electric Cable Co,Ltd.
- Newlease,Inc.
- Hnk Co., Inc.
- Yurtec Miyagi Service Co,Ltd.
- Tohoku Shichiken Power Distribution Construction Co., Ltd.
- Tohoku Power Transmission And Distribution Service Co., Ltd.
- Other Tohoku Electric Power Affiliated Companies
- Inaba Denki Sangyo Co.,Ltd.
- Toshiba Denzai Marketing Co., Ltd.
- Mitsuwa Electric Co.,Ltd.
- Nihon Densetsu Shizai Co.,Ltd.
- Coresis Co.,Ltd.
- Towa Electric Material Supply & Co.,Ltd.
- Iwaden Co., Ltd.
- Mitsuboshi Shokai Co., Ltd.
- Tohoku Denzai Co., Ltd.
- Yamagata Panasonic Co., Ltd.
- Sto Electric Commercial Firm Co.,Ltd.
- Suntelephone Co., Ltd.
- Tobe Co., Ltd.
- Okada Corporation
- Fukushima Denko Co., Ltd.
- Hatsuse Denzai Co.,Ltd.
- Kusumi Electric Co., Ltd.
- Showa Denki Sangyo Co., Ltd.
- Marushin Electric Lighting Co., Ltd.
- Vandai Dengyou Co.,Ltd.
- Other Electrical Equipment Material Stores
- Kandenko Co., Ltd.
- Kurihara Kogyo Co., Ltd.
- Toko Electrical Construction Co., Ltd.
- Hexel Works, Inc.
- Kinden Co., Ltd.
- Kyudenko Co., Ltd.
- Q-Mast Co., Ltd.
- Shinsei Technos Co.,Ltd.
- Toho Electrical Construction Co.,Ltd.
- Nippon Densetsu Kogyo Co.,Ltd.
- Nippon Rietec Co.,Ltd.
- Total Electric Management Service Co., Ltd.
- Kyokujitsu Co., Ltd.
- Exeo Group, Inc.
- Daiwa Densetsu Corp.
- Ets Holdings Co.,Ltd.
- Sendai Denki Kouji Co,Ltd.
- Taihei Denki Co., Ltd.
- Tohoku Denka Kogyo Co., Ltd.
- Honjo Electrical Co., Ltd.
- Fukukou Denki Co., Ltd.
- Tsukada Denki Koji Co., Ltd.
- Systems Co.Ltd.
- Iwadate Denki Co., Ltd.
- Hidaka Densetsu Co., Ltd.
- Takayanagi Densetukougyou Co.,Ltd.
- Urashima Communication Co., Ltd.
- (Titles omitted)
