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Apetito HFS Limited / United Steel, Paper and Forestry, Rubber, Manufacturing, Energy, Allied Industrial and Service Workers International Union (on behalf of its Local 9042)

2021–2024 · Manufacturing

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A-Plus Building Maintenance and Supply Ltd. / Labourers' International Union of North America, Local 1059

2024–2027 · Other Services

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A-Plus Building Maintenance & Supply Ltd. / Labourers' International Union of North America, Local 1059

2020–2023 · Other Services

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Applewood Manor Lp / Service Employees International Union, Local 1 Canada

2023–2026 · Health ? Social Services

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Aramark Canada Ltd. / Labourers' International Union of North America, Local 1059

2021–2024 · Other Services

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Aramark Canada Ltd. / Labourers' International Union of North America, Local 1089

2020–2023 · Other Services

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Aramark Canada Ltd. / Labourers' International Union of North America, Local 183

2024–2027 · Other Services

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Aramark Canada Ltd. / Labourers' International Union of North America, Local 3000 (Previously LIUNA, Local 1110)

2020–2023 · Other Services

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Aramark Canada Ltd. / National Organized Workers Union

2024–2027 · Other Services

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Aramark Canada Ltd. / Service Employees International Union Local 1 Canada

2019–2023 · Other Services

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Aramark Canada Ltd. / Service Employees International Union, Local 2

2022–2025 · Other Services

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Arc Boiler Repairs / International Brotherhood Of Boilermakers, Iron Ship Builders, Blacksmiths, Forgers And Helpers, Local 128

2020–2023 · Other Services

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Archer Traffic Control Inc. / Labourers' International Union of North America, Local 837 (LIUNA)

2021–2023 · Construction

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Archibald Bros. Ltd. / International Union of Operating Engineers Local 793

2021–2024 · Manufacturing

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Arkfield Development Corp. formerly A1Development Inc. and Duchess of Oxford GP Inc. and Duchess of Oxford Modern Homes Inc. and Maple Park Homes (GP) Inc. and Maple Park Homes Limited Partnership / Carpenters' Regional Council, United Brotherhood o…

2025–2025 · Construction

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Armtec LP / Sheet Metal Workers' International Association, Local 397

2021–2024 · Trade and Finance

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Arnprior Builder's Supplies / Labourers' International Union of North America, Local 527

2024–2027 · Trade and Finance

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Arnprior Builders Supplies / Labourers' International Union of North America, Local 527

2020–2024 · Trade and Finance

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Arnprior & District Memorial Hospital And Grove Nursing Home / Ontario Nurses' Association

2025–2027 · Health ? Social Services

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Arsco Investments / Labourers' International Union of North America, Local 183

2024–2027 · Other Services

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Arthur's Concrete Cutting & Core Drilling Ltd./Arthur's Concrete Grinding and Polishing Limited/Arthur's Floor Leveling and Epoxy Limited/Corescan Ltd. / Labourers' International Union of North America, Local 183

2022–2025 · Construction

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ASG Excavating Inc. / Labourers' International Union of North America, Local 1059

2023–2026 · Other Heavy and Civil Engineering Construction

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ASI Group Ltd. / Carpenters' Regional Council, United Brotherhood of Carpenters and Joiners of America (CRC)

2025–2028 · Construction

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ASL Agrodrain Limited / International Union of Operating Engineers, Local 793

2024–2028 · Construction

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Aspen Apartments (Building B) Limited / Labourers' International Union of North America, Local 183

2021–2023 · Other Services

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Aspen Apartments (Building C) Limited / Labourers' International Union of North America, Local 183

2021–2023 · Other Services

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Aspen Apartments (Building E) Limited / Labourers' International Union of North America Local 183

2021–2023 · Other Services

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Aspen Planners Limited / Labourers' International Union of North America, Local 183

2021–2023 · Other Services

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Association of Justice Counsel/Association Des Juristes De Justice / Canadian Office and Professional Employees Union Local 225

2021–2023 · Other Services

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Atikokan Health and Community Sevices / Ontario Nurses' Association

2025–2027 · Health ? Social Services

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