Aiense
Arai Pump Manufacturing Co., Ltd.
Asahi Gauge Manufacturing Co., Ltd.
Azbil TA (Taco)
Azbil (Yamatake Corporation)
BBK Technologies Co., Ltd
Daido Precision Industries Ltd.
DKK-TOA Corporation
DMW Corporation
Eagle Burgman Japan Co., Ltd.
Eagle Industry Co., Ltd.
Ebara Corporation
Ebara Yoshikura Hydro-tech Co., Ltd.
Flowserve Niigata Worthigton Co., Ltd.
Fuji Electric Co., Ltd.
Fukui Seisakusho Co., Ltd.
Funken Powtechs, Inc.
Hamanaka Chain
Hanwa Kakoki Co., Ltd.
Hitachi-IES
Hitachi Mitsubishi Hydro Corporation
Hitachi Zosen Corporation
Hirata Valve Industry Co., Ltd.
Hyoda Instruments Corporation
IDEC
IHI Corporation
Inoue Electric Mfg.Co., Ltd.
Kaji Technology Corporation
Kansul Pump Co, Ltd.
Kikan Buhin Mfg. Co., Ltd.
Kitamura Valve Mfg. Co., Ltd.
Kitz Corporation
Kobayashi Create Co., Ltd.
Kobe Steel, Ltd.
Koito Manufacturing Co., Ltd.
Konan Electric Co., Ltd.
Kosaka Laboratory Ltd.
KTC (Ferramentas KTC)
Kubota Corporation

Kuramoto Instrument Manufacturing
Kurimoto Ltd.
Marushichi Engineering Co. Ltd.
Matsushima Measure Tech Co., Ltd.
Meidensha Corporation
Mitsubishi Compressor Corporation
Mikuni Engineering Co. Ltd.
Mino Ceramic Co. Ltd.
Misuzu Machineries Co. Ltd.
Mitsubishi Heavy Industries Ltd.
Mitsubishi Power (MHPS)
Mitsui E&S Machinery Co. Ltd.
Miyairi Valve Mfg. Co. Ltd.
Nagano Kelkl Co. Ltd.
Nagasaki Kiki Mfg. Co. Ltd.
Nagasaki Kogyosho Co. Ltd.
Nakajima Valve M.F.G Co. Ltd.
Nakakita Seisakusho Co. Ltd.
NGK Insulators Ltd.
Nihon Klingage Co. Ltd.
Nikkiso Co. Ltd.
Nippon Ball Valve Co. Ltd.
Nippon Dalya Valve Co. Ltd.
Nippon Dry Chemical Co. Ltd.
Nippon Furnace Kogyo Kaisha Ltd.
Nippon Gear Co. Ltd.
Nippon Instruments Corporation
Nippon Pillar Packing Co. Ltd.
Nippon Valqua Industries Ltd.
Nisshin Electric Co. Ltd.
Nohken Inc.
Nunotani Nautical Instruments
Okano Valve Mfg Co. Ltd.
Okazaki Manufacturing Company.
Okuda Sokabe Co., Ltd.
Okumura Engineering Corporation
Rigosha & Co, Ltd.
Rikadenki Co., Ltd.
Saginomiya Seisakusho, Inc

Endress+Hauser Japan (Sakura Endress)
Sakura Seisakusho, Ltd.
Sanwa Pump
Seibu Electric & Machinery Co. Ltd
Seisa Gear, Ltd.
Shimadzu Corporation
Shimadzu Industrial Systems
Shimadzu System Solutions Co., Ltd.
Shin Nippon Machinery Co., Ltd.
Showa Furyoku Kikai Co., Ltd.
Suiden Okamoto Blower Co., Ltd.
Sugino Machine Limited
SMC Corporation
Suction Gas Engine Mfg. Co., Ltd.
SKK Ueda Gear, Ltd.
Taiko Kiki Industries Co., Ltd.
Taiyo. Ltd.
Tanabe Compressors.
Tanken Seal Selko Co., Ltd.
Teikoku Machinery Works, Ltd.
The Hanshin Diesel Works, Ltd.
The Japan Steel Works, Ltd.
Togami Electric Mfg. Co., Ltd.
Yoneki Valve
Tomoe Valve Co., Ltd.
Torishima Pump MFG. Co., Ltd.
Toshiba Corporation
Toshiba Mitsubishi-Electric Industrial Systems Corporation.
Toyo Kanetsu K.K.
Tsubakimoto Chain Corporation
Tsukishima Kikai Co,, Ltd.
Tsurumi Manufacturing Co., Ltd.
Unozawa-Gumi Iron Works Ltd,
Wakita Hi-Tecs Inc.
Yamashita Iron Works Co., Ltd.
Yamatake Corporation (Azbil)
Yokogawa Electric Corporation
Yuasa Corporation