Although small companies in France employ two-third of manpower and suffer the greatest number of occupational accidents, very few Health and Safety studies have been developed in this area. In particular methods of risk analysis have to be used by companies to be in accordance with regulation. Such methods exist but their use require some knowledge of typical accident scenarios as well as data about frequency and gravity rates of incidents. The concept developed in this artiele is that a reporting system may provide this information. Among examples of existing systems, a network of small companies with a central organisation seems to be the most suitable organisation for the reporting system. It would provide a preexisting database designed for risk analysis, that the companies could enrich with their own experience.