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Division of Brodie Nursing Homes Ltd. carrying on business as Oakwood Park Lodge / Service Employees International Union, Local 1 Canada

2024–2026 · Health ? Social Services

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Dixin Construction Ltd / International Union of Operating Engineers, Local 793

2020–2024 · Construction

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D.L. Building Materials Inc. / Labourers' International Union of North America, Local 183

2021–2024 · Trade and Finance

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DMP Vac Inc. / International Union of Operating Engineers, Local 793

2021–2023 · Construction

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Dol Excavating & Grading Inc. / International Union of Operating Engineers Local 793

2022–2025 · Construction

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DOL Excavating & Grading Inc. / International Union of Operating Engineers Local 793

2025–2028 · Construction

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DOL Hydroseeding Inc. / International Union of Operating Engineers, Local 793

2025–2028 · Construction

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Dolphin Cleaning Services Inc. / Labourers' International Union of North America, Local 183

2021–2023 · Other Services

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Dolphin Cleaning Services / Labourers' International Union of North America, Local 183

2025–2027 · Other Services

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Domclean Limited / Labourers' International Union of North America, Local 1059

2022–2025 · Other Services

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Dominion Motors (Thunder Bay 1984) Limited / International Association Of Machinists And Aerospace Workers, Thunder Bay Lodge 1120

2023–2026 · Trade and Finance

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Don Park Manufacturing Inc / International Association of Sheet Metal, Air, Rail and Transportation Workers (SMART), Local Union No. 285-SM285

2023–2026 · Manufacturing

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Doral Holdings Limited / Service Employees International Union Local 2, Brewery, General and Professional Workers' Union C.L.C.

2021–2023 · Other Services

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Doran Contractors Ltd. / Labourers' International Union of North America, Local 527

2022–2025 · Residential Building Construction

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Dor Bar Limited C.O.B. As Borics Family Haircare Centres / Service Employees International Union Local 2, Brewery, General and Professional Workers' Union

2023–2026 · Other Services

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Double M&M Limited / Labourers' International Union of North America, Local 1059

2024–2026 · Other Services

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Dover Cliffs Long Term Care Centre / Ontario Nurses' Association

2024–2026 · Health ? Social Services

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Dovercourt Clubhouse and Junction Triangle Clubhouse / Labourers' International Union of North America, Local 183

2025–2027 · Health ? Social Services

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DP Developments Inc. / International Union of Operating Engineers Local 793

2020–2023 · Construction

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Dryden Regional Health Centre / Canadian Office & Professional Employees Union (COPE), Local 521

2023–2025 · Health ? Social Services

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Dryden Regional Health Centre / Ontario Nurses' Association

2025–2027 · Health ? Social Services

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DSI Canada Civil, Ltd. / Labourers' International Union of North America, Local 506

2022–2025 · Trade and Finance

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DTOC 11 Long Term Care LP Bon Air Long Term Care Residence / Service Employees International Union, Local 1 Canada

2024–2026 · Health ? Social Services

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Dufferin Concrete (Beamsville) a Division of CRH Canada Group Inc. / International Union of Operating Engineers, Local 793

2024–2026 · Manufacturing

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Dufferin Construction Company, a division of CRH Canada Group Inc. / International Union of Operating Engineers, Local 793

2022–2025 · Construction

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Dumoulin & Associates Concrete / Labourers' International Union of North America, Local 527

2022–2025 · Residential Building Construction

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Duncan Mills Labourers Local 183 Co-Operative Homes Inc / Labourers' International Union of North America, Local 183

2024–2027 · Other Services

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Dundas Power Line Ltd. / International Union of Operating Engineers, Local 793

2022–2025 · Construction

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Dundurn Place Care Centre / Ontario Nurses' Association

2024–2026 · Health ? Social Services

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Durabond Janitorial Services / Labourers' International Union of North America, Local 183

2025–2027 · Other Services

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