- Hokkaido
- Nitto Construction Co.
- Miyagi
- Maxell Finetech Ltd.
- Miyagi
- Kami Electronic Industry Co., Ltd.
- Yamagata
- Sato Seni Co., Ltd.
- Yamagata
- Oriental Carpet Mills, Ltd.
- Tokyo
- Mitaka Kohki Co., Ltd.
- Tokyo
- Aoki Science Institute Co., Ltd.
- Tokyo
- Alcare Co., Ltd.
- Tokyo
- JFE Steel Corporation
- Tokyo
- Toray Industries Corporation
- Kanagawa
- Intelligent Sensor Technology, Inc
- Kanagawa
- Chiyoda Corporation
- Chiba
- KONO Seisakusho Co., Ltd.
- Chiba
- ABI Co., Ltd.
- Saitama
- Nagashimakougei
- Aichi
- Fuji Kihan Co., Ltd.
- Aichi
- AISIN AW Co., Ltd.
- Shizuoka
- Kunimoto Kogyo Corp.
- Yamanashi
- Kaiwa Co., Ltd.
- Yamanashi
- Oxide Corporation
- Yamanashi
- Komatsu Cutting Factory & Diamond Industry
- Gifu
- Yamazaki Mazak Corporation
- Niigata
- Twinbird Corporation
- Hiroshima
- Benda Kogyo Co., Ltd.
- Hiroshima
- Kotobuki Industries Co., Ltd.
- Shimane
- Network Applied Communication Laboratory Ltd.
- Ehime
- Izumi Seishi K.K.
- Ehime
- FACTORY ORIZA
- Kochi
- Hirose Paper Mfg Co., Ltd.