| Corporate Members | ||
| IHI Corporation | AIOI Co.,Ltd. | ITC Japan |
| Asia Air Survey Co.,Ltd. | Ashikaga University | African Development Bank |
| Ingerosec Corporation | Hazama Ando Corporation | E-light Inc. |
| Eight-Japan Engineering Consultants Inc. | AML Holdings LLC (Japan). | 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. |
| SHIMIZU MOKUZAI Co.,Ltd.. | JASA Corporation | Scan Global Logistics K.K. |
| Sumitomo Corporation | Central Clinic Group | 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.Nishimura & Asahi (GKJ) | 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.（formerly QUNIE Corporation） |
| Hotel Okura Tokyo | Yachiyo Engineering Co.,Ltd. | Yamada Sharyo Corporation |
| YAMAHA Motor Co.,Ltd. | RISINGSUN Security Service | Ricardo Corporation |
| Remote Sensing Technology Center of Japan (RESTEC) | Clinical Engineering Global Promotion Foundation | Watanabe General Construction Ltd. |
| Warrantee Inc. | ||