ONA

Notre Dame Hospital / Ontario Nurses' Association

2025–2027 · Health ? Social Services

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Novatronics Inc / International Brotherhood of Electrical Workers, Local 636

2021–2024 · Manufacturing

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Novelis Inc. / International Association Of Machinists And Aerospace Workers, Local 54

2021–2024 · Manufacturing

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Novelis Inc. / Security, Police, Fire Professionals Of America, Local 1962

2021–2024 · Manufacturing

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

2025–2028 · Other Services

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Oakridge Landscape Contractors Ltd. / International Union of Operating Engineers, Local 793

2023–2025 · Construction

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Oakridge Landscape Contractors Ltd. / Labourers' International Union of North America, Local 1059

2023–2026 · All Other Specialty Trade Contractors

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Oak Valley Health (Markham Stouffville Hospitals/Uxbridge) / Ontario Nurses' Association

2025–2027 · Health ? Social Services

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Oakville and Milton Humane Society / United Food and Commercial Workers International Union, Local 175

2024–2027 · Other Services

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Occupational Health Clinics For Ontario Workers Inc. / Canadian Office and Professional Employees Union, Local 343

2023–2027 · Health ? Social Services

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Occupational Health Clinics for Ontario Workers Inc. / United Steel, Paper and Forestry, Rubber, Manufacturing, Energy, Allied Industrial and Service Workers International Union

2022–2026 · Health ? Social Services

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Oldcastle Building Products Canada Inc. / Labourers' International Union Of North America, Local 527

2021–2023 · Manufacturing

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Old Oak Developments Inc. / Labourers' International Union of North America, Local 1059

2023–2026 · Construction

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O'Leary's Ltd. / Labourers' International Union of North America, Local 527

2022–2025 · Construction

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OMNI Health Care Limited – Burnbrae Gardens / Ontario Nurses' Association

2021–2024 · Health ? Social Services

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Omni Health Care Limited Partnership o/a Garden Terrace / Ontario Nurses' Association

2021–2024 · Health ? Social Services

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OMNI Health Care Limited Partnership operating as Omni Forest Hill / Ontario Nurses' Association

2021–2024 · Health ? Social Services

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OMNI Health Care Limited Partnership operating as Pleasant Meadow Manor / Ontario Nurses' Association

2024–2026 · Health ? Social Services

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Omni Healthcare Limited Partnership operating as Springdale Country Manor / Ontario Nurses' Association

2021–2024 · Health ? Social Services

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Omni Health Care Limited, Village Green Nursing Home / Ontario Nurses' Association

2024–2026 · Health ? Social Services

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Omni Health Care Lp / Ontario Nurses' Association

2024–2026 · Health ? Social Services

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Omni Quality Living - Almonte Country Haven / Ontario Nurses' Association

2024–2026 · Health ? Social Services

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OMNI Quality Living - Country Terrace Nursing Home / Ontario Nurses' Association

2024–2026 · Health ? Social Services

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One Facility Maintenance Inc. / Service Employees International Union Local 2, Brewery, General and Professional Workers' Union

2022–2025 · Other Services

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Onsite Sewer Services / Labourers' International Union of North America, Ontario Provincial District Council

2022–2025 · Construction

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Ontario Arts Council / Association Of Management, Administrative And Professional Crown Employees Of Ontario

2022–2025 · Public Administration

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Ontario Concrete & Drain Contractors' Association / Labourers' International Union of North America, Local 183 and International Union of Operating Engineers, Local 793

2022–2025 · Construction

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Ontario English Catholic Teachers' Association / Canadian Office and Professional Employees' Union, Local 343

2021–2024 · Other Services

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Ontario English Catholic Teachers' Association / International Association of Machinists and Aerospace Workers

2021–2024 · Other Services

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Ontario Finnish Resthome Association / Ontario Nurses' Association

2021–2025 · Health ? Social Services

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