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Construction Associations

The Ontario Sheet Metal Contractors Association, usually referenced by the acronym ‘OSM’ is a provincial not-for-profit trade association. OSM is an association of contractors whose affairs and activities are controlled by a board of directors comprised of contractor members or their appointed representative.







The Sheet Metal and Air Conditioning Contractors’ National Association (SMACNA) – is an international trade association representing 1,834 member firms in 103 chapters throughout the United States, Canada, Australia, and Brazil.
The voluntary technical standards and manuals developed by SMACNA Contractors are accepted worldwide by the construction community, as well as foreign government agencies. ANSI, the American National Standards Institute, has accredited SMACNA as a standards-setting organization. SMACNA does not seek to enforce its standards or provide accreditation for compliance. SMACNA standards and manuals address all facets of the sheet metal industry, from duct construction and installation to air pollution control, energy recovery and roofing.


The Mechanical Contractors Association of Canada (MCAC) is Federation of provincial autonomous associations, all working for the betterment and advancement of the trade and mechanical contracting industry in Canada. With offices in each province and 15 regional offices in Ontario, the Mechanical Contractors Association is Canada’s largest trade contractor Association.




The Mechanical Contractors Association of Ontario (MCAO) – The Association continues to represent the best interests and concerns of our membership through our involvement in ongoing/established activities; as well our development of and participation in several existing new initiatives – aimed at improving our industry/level of success in the future.




The Mechanical Contractors Association of Toronto - is the leader of the mechanical industrial, commercial, and institutional sectors, promoting the professionalism, cost-effectiveness, safety and productivity of mechanical services through education, labour relations, public relations and government affairs. Originally called the Toronto Labour Bureau, MCA Toronto was organized in 1963 by a few far-thinking individuals who recognized the need for a formalized management group, mainly for the purpose of bargaining with the Union. The name was changed in 1964 to more accurately reflect the changing scope of operations.



The Toronto Construction Association (TCA) – Since 1867, TCA has proudly supported our members in all facets of Toronto construction by providing them with a wide range of business and professional development opportunities, a strong industry voice and the means to help shape the industry for the better.







The Council of Ontario Construction Associations (COCA) is a leading voice for the Ontario ICI and heavy civil construction industry with 32 member organizations representing more than 10,500 construction businesses and more than 400,000 employees. COCA is committed to proactively engaging our membership through our policy committees to provide a forum through which the Ontario construction industry identifies key provincial policy issues and develops consensus opinions.



The Canadian Construction Association (CCA) was founded in 1919 as an association of construction practitioners representing Canada’s institutional, commercial and industrial (ICI) construction industry.






The Construction Employers Council of Ontario (CECCO) is a Council that represents twenty-one trade employer bargaining agencies in the I.C.I. construction sector, totalling 8,000 trade and general contractors and employing in excess of 80,000 workers throughout the province.

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