Main Business

Technotree does business with more than 250 companies including:

IHI Corporation
Aisin Seiki Co., Ltd.
Aisin AW Co., Ltd.
Asahi Breweries, Ltd.
Asahi Glass Co., Ltd.
Ebara Refrigeration Equipment & System Co., Ltd.
Osaka Gas Co., Ltd.
Kajima Corporation
Kawasaki Heavy Industries, Ltd.
Kyocera Solar Corporation
Kewpie Corporation
Kirin Co., Ltd.
Kubota Corporation
Keiyo Gas Co., Ltd.
Kobe Steel Co., Ltd.
Sagawa Global Logistics Co., Ltd.
JFE Engineering Corporation
East Japan Railway Company
Kobelco Eco-Solutions Co., Ltd.
Swing Corporation
Sekisui Plastics Co., Ltd.
Denso Corporation
TOTO Engineering, Ltd.
Toa Valve Engineering Inc.
Tokai Rolling Stock & Machinery Co., Ltd.
Toshiba Corporation
Toho Gas Co., Ltd.
Toyota Motor Corporation
Toyota Technical Development Corporation 		Nikon Corporation
Nissan Motor Co., Ltd.
West Nippon Expressway Engineering Chugoku Co., Ltd.
Nippon Steel & Sumikin Pipeline & Engineering Co., Ltd.
Nitto Denko Corporation
NGK Insulators, Ltd.
The Nippon Synthetic Chemical Industry Co., Ltd.
Nippon Seiki Co., Ltd.
Nihonmizushori-kogyo Co., Ltd.
Panasonic Co., Ltd
Procter & Gamble Co.
Hitachi, Ltd.
Hino Motors, Ltd.
Bridgestone Corporation
Miura Co., Ltd
Incorporated Administrative Agency Japan Water Agency
Mitsubishi Heavy Industries, Ltd.
Rohm Hamamatsu Co., Ltd
Yanmar Co., Ltd