| ASKA Pharmaceutical Co.,Ltd. |
| API Co.,Ltd. |
| Otsuka Pharmaceutical Co.,Ltd. |
| Ono Pharmaceutical Co.,Ltd. |
| Kao Corporation, Safety Science Research Laboratories |
| Research and Development Division,Kikkoman Corp. |
| Biochemical Division,Kikkoman Corp. |
| Canon Inc. |
| Kirin Holdings Co.,Ltd. |
| Koei Techno Co.,Ltd. |
| System Science Co.,Ltd. |
| Daiichi Sankyo Co.,Ltd. |
| Taisho Pharmaceutical Co.,Ltd. |
| Taiho Phamaceutical Co., Ltd. |
| Mitsubishi Tanabe Pharma Corporation |
| Chugai Pharmaceutical Co.,Ltd. |
| Teijin Pharma,Ltd. |
| NARD Institute, ltd. |
| Naitoh Environmental Science Co.,Ltd. |
| Japan SLC, Inc. Biotechnical center |
| Research Institute, Japan Tobacco Inc. |
| Tobacco Science Research Center, Japan Tobacco Inc. |
| JAPAN BIOASSAY RESEARCH CENTER |
| Mitsubishi Chemical Safety Institute Ltd. |
