| W3403 | Toyota Boshoku Corp. |
| W4203 | NSK Ltd. |
| W4109 | Niterra Co., Ltd. |
| W4104 | NHK Spring Co., Ltd. |
| W4108 | Japan Auto Parts Industries Association
- - OHNO RUBBER INDUSTRIAL Co., Ltd.
- - SGS Japan Inc.
- - EMANAK Co., Ltd.
- - SHIGERU Co., Ltd.
- - Pa-man Corp.
- - MARUKO KEIHOKI Co., Ltd.
- - YAMATO INDUSTRIAL Co., Ltd.
|
| W3204 | Highly Marelli Japan Corp.- - Shanghai Highly (Group) Co., Ltd.
|
| W3404 | Futaba Industrial Co., Ltd. |
| W3103 | Bridgestone Corp. |
| W3503 | Bosch Corp.- - Robert Bosch GmbH
- - ETAS K.K.
|
| W4001 | Matsui Universal Joint Corp. |
| W3101 | Maruka Service Co., Ltd. |
| W3502 | Mikuni Corp. |
| W4113 | Mik Electronic Corp. |
| W3302 | Mito Tool Mfg. Co., Inc. |
| W4206 | Yazaki Corp. |
| W3104 | The Yokohama Rubber Co., Ltd. |
| W4103 | Yorozu Corp. |
| W3102 | Rays Co., Ltd. |
| W3402 | Hebei AEW Auto Parts Co., Ltd. |
| W3002 | Guangzhou Seal Automotive Technology Co., Ltd |
| W3504 | Jiangsu Yunyi Electric Co., Ltd. |
| W4002 | Sigma & Hearts Co.,Ltd. |
| W3003 | SUPAKOTO TAKAI ME FZC |