| As of August 5, 2019 | |||
| General Members | |||
| A | ADVANCE RIKO, Inc. | N | N.E. CHEMCAT CORPORATION |
| AGC Inc. | NF Corporation | ||
| K.K. Air Liquide Laboratories | NGK INSULATORS, LTD. | ||
| AIR WATER INC. | NGK SPARK PLUG CO., LTD. | ||
| Asahi KASEI Corporation | Nikki-Universal Co., Ltd. | ||
| B | Bosch Corporation | Nippon Kinzoku Co., Ltd. | |
| C | Central Research Institute of Electric Power Industry | Nippon Steel Stainless Steel Corporation | |
| Chemix Co., Ltd. | Nisshinbo Holdings Inc. | ||
| Chemours Kabushiki Kaisha | NOK CORPORATION | ||
| CHIYODA CORPORATION | Noritake Co., LIMITED | ||
| The Chugoku Electric Power Co., Inc. | O | OKAZAKI MANUFACTURING COMPANY | |
| Clariant Catalysts (Japan) K.K. | OSAKA GAS CO., LTD. | ||
| D | DAIKIN INDUSTRIES, LTD. | OTAKI GAS CO., LTD. | |
| Dai Nippon Printing Co., Ltd. | P | Panasonic Corporation | |
| Denka Co., Ltd. | PERSOL RESEARCH & DEVELOPMENT CO., LTD. | ||
| De Nora Permelec Ltd. | R | Railway Technical Research Institute | |
| DENSO CORPORATION | Reed Exhibitions Japan Ltd. | ||
| E | Electric Power Development Co., Ltd. | RIKEN KEIKI Co., Ltd. | |
| F | Faurecia Japan K. K. | S | Saibu Gas Co., Ltd. |
| Fuel Cell Commercialization Conference of Japan | Sakai Chemical Industry Co., Ltd. | ||
| Fuji Electric Co., Ltd. | SEKISUI CHEMICAL CO., LTD. | ||
| FUTABA INDUSTRIAL CO., LTD. | SHIBAURA ELECTRONICS CO., LTD. | ||
| G | GAS ENERGY NEWS Co., Ltd. | Shinwa Sangyo Co., Ltd. | |
| H | HIROSHIMA GAS CO., LTD. | T | Taiwan Power Research Institute, TAIWAN POWER COMPANY |
| Hitachi Metals, Ltd. | TAIYOSEKIYU, LTD. | ||
| HITACHI ZOSEN CORPORATION | TANAKA KIKINZOKU KOGYO K.K. | ||
| Honda R&D Co., Ltd. | TECHNOVA INC. | ||
| I | INABATA & CO., LTD. | TOHO GAS CO., LTD. | |
| The Institute of Applied Energy | TOKYO GAS CO., LTD. | ||
| Ishifuku Metal Industry Co., Ltd. | TOPPAN PRINTING CO., LTD. | ||
| Iwatani Corporation | Toshiba Energy Systems & Solutions Corporation | ||
| J | JAPAN AUTOMOBILE RESEARCH INSTITUTE | TOTO LTD. | |
| The Japan Electrical Manufacturers’ Association | TOYOTA AUTO BODY CO., LTD. | ||
| The Japan Gas Association | TOYOTA BOSHOKU CORPORATION | ||
| Japan Petroleum Energy Center | TOYOTA MOTOR CORPORATION | ||
| JFE Steel Corporation | TOYOTA TSUSHO CORPORATION | ||
| JXTG Nippon Oil & Energy Corporation | U | Ube Industries, Ltd. | |
| K | KEIYO GAS CO., LTD. | ULVAC KIKO, Inc. | |
| KIKUSUI ELECTRONICS CORPORATION | V | Volkswagen Group Japan KK | |
| KIRYUGAS Co., Ltd. | W | W.L. Gore & Associates, Co., Ltd. | |
| KOBELCO Research Institute, Inc. | Y | Yamaha Motor CO., LTD. | |
| KOBE STEEL, LTD. | Z | ZEON CORPORATION | |
| KRI, Inc. | |||
| KYOCERA Corporation | |||
| Kyoritsu denki seisakusyo | |||
| M | MAGNEX Co., LTD. | ||
| Mitsubishi Gas Chemical Company, Inc. | |||
| MITSUBISHI HITACHI POWER SYSTEMS, LTD. | |||
| MITSUBISHI KAKOKI KAISHA, LTD. | |||
| MITSUI MINING & SMELTING CO., LTD. | |||
| MIURA Co., Ltd. | |||
| Mizuho Information & Research Institute | |||
