| 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. | 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. | Qunie Corporation |
| 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 Enterprise Co.,Ltd. |
| G CUBE CO., Ltd. | J.C.B Japon Co.,Ltd. | SHIMIZU MOKUZAI Co.,Ltd.. |
| JASA Corporation | Sumitomo Corporation | SOIK Corporatio |
| TAU Corporation | TOA Corporation | TAKAOKA TOKO Co.,Ltd. |
| Tokyo Electric Power Company | Toray Medical Co.,Ltd. | Toyo Construction Co.,Ltd. |
| TOYORIKEN Corporation | 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. |
| PTMC Institute | BIG WAVE KAWASAKI Inc. | People, Dreams & Technologies Group Co., Ltd. |
| Fourin Inc. | Hotel Okura Tokyo | Yachiyo Engineering Co.,Ltd. |
| Yamada Sharyo Corporation | YAMAHA Motor Co.,Ltd. | Remote Sensing Technology Center of Japan (RESTEC) |
| Watanabe General Construction Ltd. | ||