1. National Institute of Advanced Industrial Science and Technology (AIST)
2. Sankyo Tateyama, Inc.
3. Gonda Metal Co., Ltd.
4. Sumitomo Electric Industries, Ltd.
5. Fuji Light Metal Co., Ltd.
6. Japan Transport Engineering Company
7. Kawasaki Heavy Industries, Ltd.
8. Dai Nippon Toryo Co.,Ltd.
9. Innovative Structural Materials Association (ISMA)
10. Railway Technical Research Institute