OEM members have a crucial role in the work of the organization, because primarily with their direct participation, in the true sense of the word, the attitudes and the policies represented by OEM are prepared and finally determined.

OEM is functioning through creation of working groups composed of experts, employees of the member companies in order to deal with the issues of its competence. Thus, firms associated with OEM speak their own decisions and measures that tackle their affaires. At the places where things should be said loud and clear, there the OEMs speakers’ are its members.