| IHI Aerospace Co., Ltd. |
Itochu Corporation |
| Ishikawajima-Harima Heavy Industries Co.,Ltd. |
Fuji Heavy Industries Ltd. |
| NEC Corporation |
Furukawa Battery Co., Ltd. |
| Kawasaki Heavy Industries, Ltd. |
Mitsui Bussan Aerospace Co., Ltd. |
| Keyware Solutions Inc. |
Mitsubishi Corporation |
| Sharp Corporation |
Mitsubishi Space Software Co., Ltd. |
| Denso Corporation |
Total : 18 companies |
| Hitachi, Ltd. |
| Fujitsu Limited |
| Mitsubishi Heavy Industries, Ltd. |
| Mitsubishi Electric Corporation |
| Mitsubishi Precision Co., Ltd. |
|
