| Achilles |
| Asahi Rubber |
| Asics |
| ATOM |
| Atryz Yodogawa |
| Arai Seisakusho |
| Bridgestone Corporation |
| Bridgestone-Sprots |
| Bando Chemical Industries,
Ltd. |
| Bando USA (USA) |
| Freudenberg-NOK (Euro,USA,Asia) |
| Fujikura Co.,Ltd. |
| Fukoku |
| Furukawa Electric |
| Gumunoinaki Co.,Ltd. |
| Goodyear,Japan |
| Gyousei Industrial Rubber
coating & soaking Co. |
| Hitachi-Cable
,Ltd. |
| Hitachi-Cable Indiana (USA) |
| Hokushin Corporation |
| Ikuyo
Co., Ltd. |
| Inoac Corporation |
| Katsura Roller
Mfg.Co.,Ltd. |
| Kawaichi Tech |
| Keeper Co.,Ltd. |
| Kinugawa
Rubber Industrial Co.Ltd. |
| Kobelco
(tire&rubber machinery) |
| Kobunshi Keiki (Durometer) |
| Koukoku-Intech |
| Kurashiki
Kako Co., Ltd. |
| Kureha Elastomer
Co.Ltd. |
| Kuriyama |
| Kyowa Ltd. |
| Moonstar Chemical |
| Moriteq Ltd. |
| Michelin, Japan |
| Mitsubishi
Cable Industries |
| Mitsubishi Heavy Industries
(tire machinery) |
| Mitsuboshi
Belting |
| Mitsufuku Industry |
| Musashi Oil Seal |
| Miyako Roller |
| Miyasaka Rubber |
| Nagayanagi
Co.,Ltd |
| Nakanishi Metal
Works |
| Nichirin Co.,Ltd. |
| Nippon Mektron |
| Nippon Valqua Industries |
| Nishikawa
Rubber Co., Ltd. |
| Nisshin
Rubber Co., Ltd. |
| Nishiyama Corporatrion |
| Nitta Corporation |
| Nittamoore Company |
| Nitto Denko Corporation |
| The Ohtsu Tire & Rubber |
| Orion Inc. |
| Pacific Industrial Co.,Ltd. |
| Polymatech |
| Saiko Rubber (Malaysia)
(Suntex) |
| Sagami |
| Sakura rubber |
| Seibu Gomu |
| Secaicho Corp. |
| Sekiguchi
Rubber Co., Ltd. |
| Shin-Etsu Polymer Co.,
Ltd. |
| Shin-Etsu, Shincor Silicones (USA) |
| Showa Electric Wire & Cable |
| Siegling,Japan |
| Sony Chemicals Corp. |
| Sumitomo Electric Industries
Co., Ltd. |
| Sumitomo Wiring Systems |
| Suzuki Latex |
| Takechi KogyouGomu |
| Tiger Polymer Corporation,Japan |
| Tokai Rubber Industries
Co., Ltd. |
| Toyoda Gosei
Co., Ltd. |
| Toyo Seiki Seisakusho,Ltd.(testing
equipment) |
| Toyo Takasago |
| Toyo Tire & Rubber Co., Ltd. |
| Tsubakimoto Chain |
| Uchiyama Manufacturing Corp. |
| Yamashita Rubber |
| Yazaki |
| Riko |
| The Yokohama Rubber Co., Ltd. |
| Yoshino Rubber
Industrial Co., Ltd. |
| Yuasa Elastomer Products |