* Titles have been omitted. Companies are listed in the order of the Japanese alphabet.
- AIKOKU ALPHA CORPORATION
- AISAN INDUSTRY CO., LTD.
- AISIN CORPORATION
- AISIN TAKAOKA CO., LTD.
- Aichi Machine Industry Co., Ltd.
- Aichi Steel Corporation
- Akebono Industry Co., Ltd.
- AZIA CORPORATION
- Ikeda Co., Ltd.
- IZUMI MACHINE MFG. CO., LTD.
- UBE MACHINERY CORPORATION, LTD.
- AVEX, INC.
- Eiya Shokai Co., Ltd.
- NT TOOL CORPORATION
- NT TECHNO Corporation
- YANTAI SHOUGANG TD AUTOMOTIVE COMPRESSOR CO., LTD.
- OHBA SEIKEN Co., Ltd.
- OTICS Corporation
- KYB Corporation
- Kitaibarakiseimitsukakou
- KOGANEI CORPORATION
- JMC Corporation
- JTEKT CORPORATION
- JTEKT GEAR SYSTEMS CORPORATION
- Shinnichi Kogyo Co., Ltd.
- SENSUS YAMAMOTO
- DAIDO METAL CO., LTD.
- Daihatsu Motor Co., Ltd.
- TAIHO KOGYO CO., LTD.
- TAIYO KOKI CO., LTD.
- DAIWA SHOKAI
- TAKAMATSU MACHINERY CO., LTD.
- TAKAMURATEKKOUSHO
- TSUGAMI CORPORATION
- DMG MORI CO., LTD.
- DENSO CORPORATION
- DENSO ELECTRONICS CORPORATION
- DENSO DAISHIN CORPORATION
- TOAKIKO CO., LTD.
- TOKAI SEIKI Co., Ltd.
- Tokyu Co., Ltd.
- Toyo Corporation
- TD Automotive Compressor Kunshan Co., Ltd.
- TOYOTA MOTOR CORPORATION
- TOYOTA MOTOR KYUSHU, INC.
- TOYOYA MOTOR HOKKAIDO, INC.
- TOYOTA INDUSTRIES CORPORATION
- Toyota Tsusho Corporation
- TOYOTSU MACHINERY CORPORATION
- NAGAO INDUSTRY
- Nakagawa Co., Ltd.
- Nabtesco Corporation
- NGK INSULATORS, LTD.
- HAMANAKODENSO CO., LTD.
- HIKARI SEIKO CO., LTD.
- HIRAIWA IRON WORKS CO., LTD.
- Fine Sinter Co., Ltd.
- FUKUJU INDUSTRY CO., LTD.
- FUJI CORPORATION
- Prime Planet Energy & Solutions, Inc.
- BROTHER INDUSTRIES, LTD.
- Howa Machinery, Ltd.
- MARUMAN SHOJI
- MIZUHO KIKOU Co., Ltd.
- Mitutoyo Corporation
- Mitsubishi Heavy Industries Thermal Systems, Ltd.
- Mitsubishi Electric Corporation
- MIYUKI SHOUKAI CO., LTD.
- MURAI
- METAL CREATE CO., LTD.
- WASINO KIKI CO., LTD.