1. Nishinihon Occupational Health Service Center
2. Department of Occupational Health Practice and Management, Institute of Industrial Ecological Sciences, University of Occupational and Environmental Health
3. Hoya Corporation
4. Occupational Health Training Center, University of Occupational and Environmental Health
5. Komatsu, Ltd.
6. Advanced Occupational health Research and Consulting (AORC), Ltd.
7. Brother Industries, Ltd.