The Ontario Construction Secretariat (OCS) is a not-for-profit organization founded in 1993 to represent the unionized industrial, commercial, and institutional (ICI) construction sector in Ontario. It serves over 130,000 union members and 5,000 union contractors, focusing on collaboration among trades, contractors, and government stakeholders.
OCS operates as a neutral intermediary, emphasizing non-partisan research, labour relations, and public policy advocacy. It conducts industry-specific studies, promotes workplace safety through initiatives like the “31% Safer” campaign, and hosts networking and educational events. The organization also runs programs to attract new talent to the construction sector. Its deliverables include research reports and educational content aimed at promoting unionized construction careers and safety standards. OCS plays a vital role in shaping public policy and improving the construction industry in Ontario.