- IHI Agri-Tech Corporation.
- I-O DATA DEVICE,INK.
- AMADA HOLDINGS Co.,Ltd.
- Amano Corporation.
- Azbil Corporation.
- Ito Co.,Ltd.
- IWASAKI ELECTRIC Co.,Ltd.
- AMS Technologies Ltd.
- EIZO Corporation.
- SMK Corporation.
- TECHNO HORIZON CO.,LTD
- OPTOELECTRONICS CO.,LTD.
- Olympus Corporation.
- Canon Inc.
- KYORITSU ELECTRICAL INSTRUMENTS WORKS,LTD.
- Koki Holdings Co.,Ltd.
- COSEL Co.,Ltd.
- KONIKA MINOLTA,INC.
- SATO HOLDINGS CORPORATION.
- SHIHEN TECHNICAL Corporetion
- Sammy Corporation.
- SHIMA SEIKI MFG.,LTD.
- JUKI CORPORATION
- SHINKO DENSHI Co.,Ltd.
- STANLEY ELECTRIC Co.,Ltd.
- Seiko Instruments Inc.
- SEIKO EPSON CORPORATION.
- SECOM Co.,Ltd.
- DAIICHI CO.,LTD.
- CHOFU SEISAKUSHO Co.,Ltd.
- TEIKOKU TSUSHIN KOGYO Co.,Ltd.
- TDK LAMBDA.
- NAKANISHI INK.
- NIDEC INSTRUMENTS CORPORATION
- Japan Radio Co.,Ltd.
- NIKON CORPORATION.
- NITTAN COMPANY,LIMITED.
- Nippon Avionics Co.,Ltd.
- THE NIPPON SIGNAL Co.,Ltd.
- Nippon Seiki Co.,Ltd.
- Japan Digital Laboratory Co.,Ltd.
- NOHMI BOSAI Ltd.
- VAIO Corporation.
- HARADA INDUSTRY Co.,Ltd.
- PFU Limited.
- HIOKI E.E.CORPORATION.
- Proterial,Ltd.
- Fuji Electric Holdings Co.,Ltd.
- FUJITSU GENERAL LIMITED.
- Futaba Corporation.
- FOR-A COMPANY LIMITED.
- Hochiki Corporation.
- MIURA CO.,LTD.
- MIKUNI CORPORATION.
- Mitsubishi Heavy Industries,Ltd.
- Mitsubishi Electronic Corporation.
- MIDORI ANZEN CO.,LTD.
- YASUKAWA CONTROLS CO.,LTD.
- RKC INSTRUMENT INC
- RIKEN KEIKI Co.,Ltd.
- RHYTHM CO.,LTD.
- Rubycon Corporation.
- RHEON AUTOMAtiC MACHINERY.
- YAESU MUSEN Co.,Ltd.
- Yokokawa Electric Corporation.