| Government Offices |
| Ministry of Economy, Trade and Industry |
| Japan Oil, Gas and Metals National Corporation (JOGMEC) |
| New Energy and Industrial Technology Development Organization (NEDO) |
| University/Research Institutions |
| Fronteer Research Center for Energy and Resources (FRCER)
School of Engineering, The Uiversity of Tokyo |
| Reserch Institute of Innovate Technology for the Earth (RITE) |
| National Institute of Advanced Industrial Science and Technology (AIST) |
| The Central Research Institute of Electric Power Industry (CRIEPI) |
| The Institute of Energy Economics, Japan |
| The Institute of Applied Energy |
| The Global Carbon Capture and Storage Institute Ltd. |
| Battelle-Japan |
| Private Companies |
| Hokkaido Electric Power Co., Inc. |
| Tohoku Electric Power Co., Inc. |
| The Tokyo Electric Power Co., Inc. (TEPCO) |
| Chubu Electric Power Co., Inc. |
| Hokuriku Electric Power Co., Inc. |
| The Kansai Electric Power Co., Inc. |
| The Chugoku Electric Power Co., Inc. |
| Shikoku Electric Power Co., Inc. |
| Kyushu Electric Power Co., Inc. |
| The Okinawa Electric Power Co., Inc. |
| Electric Power Development Co.,Ltd. (J-POWER) |
| Idemitsu Kosan Co., Ltd. |
| COSMO OIL CO., LTD. |
| SHOWA SHELL SEKIYU K. K. |
| JX Nippon Oil & Energy Corporation |
| Nippon Steel Engineering Co., Ltd. |
| CHIYODA CORPORATION |
| Toyo Engineering Corporation |
| JGC CORPORATION |
| AOC Holdings, Inc. |
| INPEX Corporation |
| Japan Petroleum Exploration Co., Ltd. (JAPEX) |
| Mitsubishi Materials Corporation |
| Sumitomo Corporation |
| TOKYO GAS Co., Ltd. |
