| 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. |
| 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 |
| Central Clinic Group | SOIK Corporatio | 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. | 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) | RISINGSUN Security Service | Ricardo Corporation |
| Clinical Engineering Global Promotion Foundation | Watanabe General Construction Ltd. | Warrantee Inc. |