- Akamatsu Electric Mfg.Co.,Ltd.
- Amano Corporation
- Arimitsu Industry Co.,Ltd.
- DAIKIN INDUSTRIES, Ltd.
- FUKUHARA Co.,Ltd.
- FULTA ELECTRIC MACHNERY
- Karcher Co.,Ltd
- MITAKA Co,.Ltd.
- n-intec inc.
- NIVAC Co., Ltd.
- 日本ドナルドソン株式会社
- OSG CORPORATION
- Sanritsukiki Corporation
- SHOWADENKI CO.,LTD.
- Precision Tool Makers Export Group, Ltd.
- TANAKA-GIKEN.INC
- TSURUMI MANUFACTURING CO., LTD.
- Yodogawa Electric Tool Mfg.Co.,
- Zaoh Sangyo Co., Ltd.
