OPSEU represents approximately 165,000 members across Ontario. They are full- and part-time workers, young and old. They trace their ancestry to all parts of the globe – as diverse a group as you could imagine. Our members work for the Ontario government, inside community colleges, for the LCBO, in the health care sector, and they are employed in a wide range of community agencies within the broader public sector.
This point-form history of OPSEU highlights the union’s development from 1911 to 2005, from its beginnings as the Civil Service Association of Ontario (CSAO).
Your Home in OPSEU
Find your way around OPSEU and learn how we work on behalf of our 165,000 members.
The Ontario Public Service Employees Union (OPSEU) is committed to providing a barrier-free environment for all members and stakeholders including employees, job applicants, suppliers, and any visitors who may enter our premises, access our information, or use our services.