Construction

Architectural Glass And Metal Contractors Assn / International Union Of Painters And Allied Trades And The Ontario Council Of The International Union Of Painters And Allied Trades

2025–2028 · ONA

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Association Of Millwrighting Contractors Of Ontario, Inc. / Millwright Regional Council, United Brotherhood of Carpenters and Joiners of America, on behalf of Affiliated Local Unions 1007/1151/1244/1410/1425/1592/1916/2309

2025–2028 · ONA

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Boilermaker Contractors Association / International Brotherhood Of Boilermakers, Iron Ship Builders, Blacksmiths, Forgers And Helpers, Local 128

2025–2028 · ONA

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Carpenters Employer Bargaining Agency / Carpenters' District Council of Ontario, United Brotherhood Of Carpenters And Joiners Of America

2022–2025

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Carpenters' Employer Bargaining Agency (E.B.A.) / Carpenters' Regional Council formerly Carpenters' District Council of Ontario, United Brotherhood Of Carpenters And Joiners Of America

2025–2028 · ONA

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Concrete Cutting & Drilling Association of Ontario / Labourers' International Union of North America, and Labourers' International Union of North America, Ontario Provincial District Council, Local 183/493/506/527/607/625/837/1036/1059/1089

2025–2028 · ONA

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Electrical Power Systems Construction Association / Carpenters District Council of Ontario (CDC), United Brotherhood Of Carpenters And Joiners Of America

2020–2025

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Electrical Power Systems Construction Association / International Brotherhood of Teamsters

2020–2025 · Teamsters

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Electrical Power Systems Construction Association / International Union of Operating Engineers

2020–2025 · ONA

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Electrical Power Systems Construction Association / International Union of Operating Engineers, Local 793

2025–2030 · ONA

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Electrical Power Systems Construction Association / Millwright Regional Council of Ontario, United Brotherhood of Carpenters and Joiners of America on behalf of Affiliated Local Unions 1007, 1151, 1244, 1410, 1425, 1592, 1916 and 2309

2020–2025 · ONA

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Electrical Power Systems Construction Association / United Association Of Journeymen And Apprentices Of The Plumbing And Pipe Fitting Industry Of The United States And Canada

2020–2025

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Electrical Trade Bargaining Agency / International Brotherhood Of Electrical Workers and IBEW Construction Council of Ontario, Local 105/115/120/1687/303/353/402/530/586/773/804

2022–2025 · IBEW

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Greater Hamilton & Niagara Construction Association / International Union of Operating Engineers Local 793

2026–2028 · ONA

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Greater Toronto Sewer And Watermain Contractors Assn / International Union of Operating Engineers, Local 793

2022–2025 · ONA

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Greater Toronto Sewer And Watermain Contractors Association / International Union of Operating Engineers, Local 793

2025–2028 · ONA

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Greater Toronto Sewer & Watermain Contractors Association / A Council Of Trade Unions Acting As The Representative And Agent Of Teamsters' Local Union 230 And Labourers' International Union of North America, Local 183

2025–2028 · Teamsters

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Heavy Construction Association Of Windsor / International Union of Operating Engineers, Local 793

2025–2028 · ONA

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Heavy Construction Association of Windsor / Labourers' International Union Of North America, Local 625

2021–2025 · ONA

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Hydro One Inc / Canadian Union of Skilled Workers (CUSW)

2022–2026 · USW

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Independent Plumbing And Heating Contractors Association / United Association Of Journeymen And Apprentices Of The Plumbing And Pipe Fitting Industry Of The United States And Canada, Local 46

2022–2025

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Interior Systems Contractors Assn Of Ontario / Drywall Acoustic Lathing and Insulation, United Brotherhood of Carpenters and Joiners of America, Local 675

2022–2025

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Interior Systems Contractors Association of Ontario and the Acoustical Association Ontario. / International Union Of Painters And Allied Trades And The Ontario Council Of The International Union Of Painters And Allied Trades

2025–2028 · ONA

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Interior Systems Contractors Association Of Ontario / International Union of Painters and Allied Trades and the Ontario Council of the International Union of Painters and Allied Trades and its Local 1891

2025–2028 · ONA

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Labourers Employer Bargaining Agency (Construction Labour Relations Assn of Ontario; Ontario Masonry Contractors Assn; Industrial Contractors Assn of Canada; Waterproofing Contractors Assn of Ontario… / Labourers' International Union of North Americ…

2025–2028 · ONA

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London Sewer and Watermain, Curb, Gutter and Sidewalk Contractors Association / International Union of Operating Engineers, Local 793

2023–2025 · ONA

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London Sewer and Watermain, Curb, Gutter and Sidewalk Contractors Association / Labourers' International Union of North America, Local 1059

2023–2025 · ONA

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Masonry Contractors' Association of Toronto / Bricklayers, Masons Independent Union of Canada, Local 1, Labourers International Union of North America, Local 183, Masonry Council of Unions Toronto and Vicinity

2022–2025 · ONA

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Masonry Industry Employers Council Of Ontario / Ontario Provincial Conference

2025–2028

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Master Insulators' Association of Ontario Inc. / International Association Of Heat And Frost Insulators And Allied Workers, Local 95

2025–2028 · ONA

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