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Primary Customers / Certifications
Main Business Partners
- East Japan Railway Company
- Central Japan Railway Company
- Japan Freight Railway Company
- Hokkaido Railway Company
- West Japan Railway Company
- Tokyu Railways
- Tobu Railway Co.,Ltd
- Seibu Railway Co.,Ltd.
- Hankyu Corporation
- Hanshin Electric Railway Co., Ltd.
- Mitsui & Co.,Ltd.
- Mitsubishi Corporation
- Marubeni Corporation
- Meitetsu EI Engineer Co.,Ltd.
- Yudensha Co.,Ltd.
- Chiyoda Corporation
- Chiyoda Kohan Co.,Ltd.
- Shoji-Electric Co.,Ltd
- Toshiba Corporation
- Toshiba Infrastructure Systems & Solutions Corporation
(Random order)
Certifications
| Construction License | Minister of Land,infrastructure,Transport and Tourism Permit | （Special-5）No.29083（Electrical construction business、Telecommunication engineering business、Plumbing business、Water and sewerage facilities business） |
|---|---|---|
| License for Dealership of Secondhand Articles | Tokyo Metropolitan Public Safety Commission Permit | No. 308881406938 (machine tool business) |
| ISO 14001 | Registration No. EC99J2004 | |
| ISO 9001 | Registration No. ISO9001-0067742 | |
