The Society represents a broad range of professional, technical, administrative and supervisory professionals at Ontario Power Generation (OPG). Wholly owned by the Government of Ontario, OPG is one of the largest energy generation companies in North America. The OPG Local also represents employees at OPG commercial subsidiaries PowerON and Laurentis. PowerON manages the province's electrification projects. Laurentis is a supplier of isotopes and provides services in the nuclear sector, including project management and engineering services.