Construction

Bel-Con Design Builders Ltd. / Christian Labour Association Of Canada

2024–2027

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Belmar Builders Inc. / United Brotherhood Of Carpenters And Joiners Of America, Local 2486

2025–2028

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Beverly Caulking Inc. / Carpenters and Allied Workers Local 27, United Brotherhood of Carpenters and Joiners of America

2022–2025

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Biloski Brothers Sand & Gravel Ltd. / International Union of Operating Engineers, Local 793

2024–2027 · ONA

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Birchcliff Construction Ltd. / Labourers' International Union of North America, Local 183

2022–2025 · ONA

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Bird Heavy Civil Ltd. / International Union of Operating Engineers Local 793

2022–2025 · ONA

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B.J. Aluminum / Carpenters and Allied Workers Local 27, United Brotherhood of Carpenters and Joiners of America

2022–2025

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Blythwood Homes Inc. / Carpenters District Council of Ontario United Brotherhood of Carpenters and Joiners of America

2024–2026

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Bold Exteriors Inc. / Carpenters and Allied Workers Local 27, United Brotherhood of Carpenters and Joiners of America

2022–2025

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Bolt-Krete Services (2004) Inc. / International Union of Operating Engineers, Local 793

2025–2028 · ONA

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Bonnechere Excavating Inc. / 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

2023–2026 · Teamsters

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Boudreau Commercial Contracting Inc. / Allied Construction Employees Local 1030, United Brotherhood of Carpenters and Joiners of America

2022–2025

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Boyle Excavating / 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

2023–2026 · Teamsters

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Brabo Green Building Inc. / Allied Construction Employees Local 1030, United Brotherhood of Carpenters and Joiners of America

2022–2025

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Bramalea Steelworks Ltd. / International Association Of Bridge, Structural, Ornamental And Reinforcing Iron Workers, Local 721

2022–2025 · ONA

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Brandon Contractors / Labourers' International Union Of North America, Local 1089

2020–2024 · ONA

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Branthaven Homes 2000 Inc. / Allied Construction Employees, Local 1030, United Brotherhood of Carpenters and Joiners of America

2023–2025

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Brass Industrial Services Inc. / Labourers' International Union of North America, Ontario Provincial District Council

2022–2025 · ONA

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BRC Restoration Inc. / Labourers' International Union of North America, Local 183

2025–2028 · ONA

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B & R Ditching & Excavating / International Union of Operating Engineers Local 793

2022–2025 · ONA

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Brennan Paving & Construction Ltd. / 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

2023–2026 · Teamsters

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Brickstone Construction Limited / Labourers' International Union of North America, Local 183

2022–2025 · ONA

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Bridgecon Construction Ltd / Labourers' International Union of North America, Local 183

2022–2025 · ONA

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Broadway Hardwood Flooring Ltd. / Labourers' International Union of North America, Local 183

2022–2025 · ONA

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Bromac Electric Inc. / Construction Workers Union, CLAC Local 52

2025–2028

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Bromont Homes Inc. / Allied Construction Employees, Local 1030, United Brotherhood of Carpenters and Joiners of America

2024–2025

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Brosco Concrete Levelling / Labourers' International Union of North America, Local 1059

2022–2024 · ONA

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Bruce Hodgins Excavation / International Union of Operating Engineers, Local 793

2025–2028 · ONA

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Bruno's Contracting (Thunder Bay) Limited / International Union of Operating Engineers, Local 793

2024–2027 · ONA

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B-Safe Electric Ltd. / Construction Workers Union, CLAC Local 52

2020–2023

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