About Us

As the second largest municipal union in Ontario, CUPE 503 is proud to provide the residents of Ottawa and Eastern Ontario with day to day services, year in year out. CUPE 503 is a diverse group of people who share a common commitment to public services. They include frontline staff – working full and part-time – in libraries, city halls, long term care facilities, community care access centers, social housing, the Humane Society as well as parks and recreation facilities.