A workers' protection system is a specific sector of Social Security with its own features, due to the specificity of the phenomenon which is the object of its activity: accidents at work. In such a system the actuaries play an essential role, since the long-term nature of the benefits provided (the benefits can be paid for decades following an accident) requires an adequate scientific approach. Since April 2017 it has been established within the International Actuarial Association (IAA) and with the participation of both the International Social Security Association (AISS) and the International Labour Organization (ILO), the "Working Group Compensation "(WGC), with the task of collecting information currently available on workers' protection systems at an international level, and the goal of highlighting the strengths and weaknesses of these schemes, with particular reference to developing countries. The present work illustrates the activities carried out by the WGC starting from the submission of a questionnaire on workers' protection systems which was prepared by the WGC members, representing IAA, ISSA and ILO as well as representing countries such as USA, South Africa, Japan and Lithuania. The survey concerned the nature of the subjects who manage these schemes, the funding systems adopted and the benefits provided. Currently the group is examining the results of the questionnaire and gathering further information through a search for scientific material at relevant official sources such as ISSA, ILO and others. The final objective of the WGC is to produce a final document of all the activities carried out, to be made available to the international actuarial community and to the other stakeholders.