- Angrave, Bruce
- Baynard Press
- Directorate of Air Traffic & Safety
- Directorate of Safety Education
- Druk L. Van Leer & Co.
- Fischer, Anton Otto
- Giles, F. Kenwood
- Industrial Welfare Society
- J W Spear & Sons Ltd
- J. Weiner Ltd.
- London Transport Board
- Loxley Bros. Ltd.
- Ministry of Health and Central Council of Health Education
- Ministry of Labour and National Service
- N. Wilks & Sons, Limited
- National "Safety First" Association
- Platen-Commissie Secretariat
- ROSPA (The Royal Society for the Prevention of Accidents)
- Royal Society for the Prevention of Accidents