| Company Logo | Company name | Country | Sector |
|---|---|---|---|
 | KOMATSU KAIHATSU Corp. |  Japan | Manufacturing |
 | Mitsubishi Heavy Industries Environmental & Chemical Engineering Co.,Ltd. | Japan | Manufacturing |
 | Asano Laboratories Co. Ltd. | Japan | Manufacturing |
 | ATOX Co., Ltd. | Japan | Manufacturing |
 | SODA NIKKA CO., LTD. | Japan | Manufacturing |
 | Shikoku Welding Electrode co., Ltd. | Japan | Manufacturing |
 | IHI Infrastructure Systems Co., Ltd. | Japan | Manufacturing |
 | ATTO Co., Ltd. | Japan | Manufacturing |
 | Daiki Axis Co., Ltd. | Japan | Manufacturing |
 | TOYO SEIKO Co., Ltd. | Japan | Manufacturing |
 | Techno State Co.,Ltd. | Japan | Manufacturing |
 | TOPURA CO., LTD. | Japan | Manufacturing |
