| Corporate Members | ||
| IHI Corporation | AIOI Co.,Ltd. | ITC Japan |
| Asia Air Survey Co.,Ltd. | Ashikaga University | African Development Bank |
| Amuse Capital Inc. | Ingerosec Corporation | Hazama Ando Corporation |
| E-light Inc. | Eight-Japan Engineering Consultants Inc. | AML Japan Co.,Ltd. |
| O-M Ltd. | Oakamoto Pump Co.,Ltd. | Ogawa Industry Co.,Ltd. |
| Oriental Constructions Global Co.,Ltd. | Katahira & Engineers International | Kitashikoku Sangyo Co.,Ltd. |
| Kobe Institute of Computing | Japan Bank for International Cooperation (JBIC) | Penta-Ocean Construction Co.,Ltd. |
| Sakura Global holding Co.,Ltd. | Sustainable Holdings Co.,Ltd. | SATO World Enterprise Co.,Ltd. |
| G CUBE CO., Ltd. | J.C.B Japon Co.,Ltd. | SHIMIZU MOKUZAI Co.,Ltd.. |
| JASA Corporation | Sumitomo Corporation | Central Clinic Group |
| SOIK Corporation | TAU Corporation | TOA Corporation |
| TAKAOKA TOKO Co.,Ltd. | Tokyo Electric Power Company | Toray Medical Co.,Ltd. |
| Toyo Construction Co.,Ltd. | Tokushukai General Incorporated Association | TODA CORPORATION |
| TOPPAN Digital Inc. | West Nippon Expressway Co.,Ltd. | Nishimura & Asahi (GKJ) |
| Japan Weather Association | Nippon Koei Co.,Ltd. | Japan Port Consultants, Ltd. |
| Normeca Aisa Co.,Ltd. | Hamaya Co.,Ltd. | Hanwa Co., Ltd. |
| BIG WAVE KAWASAKI Inc. | People, Dreams & Technologies Group Co., Ltd. | Fourin Inc. |
| Fortience Consulting Inc. | Hotel Okura Tokyo | Yachiyo Engineering Co.,Ltd. |
| Yamada Sharyo Corporation | YAMAHA Motor Co.,Ltd. | Remote Sensing Technology Center of Japan (RESTEC) |
| RISINGSUN Security Service | Ricardo Corporation | Clinical Engineering Global Promotion Foundation |
| Watanabe General Construction Ltd. | Warrantee Inc. | |