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HMFT Inc. (Formerly known as Howard Marten Co Ltd) / International Association Of Machinists And Aerospace Workers, Local 901

2022–2025 · Manufacturing

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H & M Maid Inc. / Labourers' International Union of North America, Local 183

2025–2028 · Other Services

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Hobart Food Equipment Group / International Association of Machinists and Aerospace Workers, Local 235

2020–2023 · Trade and Finance

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Holland Bloorview Kids Rehabilitation Hospital / Labourers International Union of North America L.I.U.N.A. Local 3000

2023–2025 · Health ? Social Services

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Hooper Welding Enterprises Ltd / International Brotherhood Of Boilermakers, Iron Ship Builders, Blacksmiths, Forgers And Helpers, Local 128

2019–2023 · Manufacturing

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Hope Street Terrace, Lafontaine Lodge Ltd. c.o.b. as Community Nursing Home / Ontario Nurses' Association

2024–2026 · Health ? Social Services

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Hope Street Terrace / Ontario Nurses' Association

2021–2024 · Health ? Social Services

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Hôpital de Mattawa Hospital / Ontario Nurses' Association

2025–2027 · Health ? Social Services

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Hôpital de Smooth Rock Falls Hospital / Ontario Nurses' Association

2025–2027 · Health ? Social Services

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Hornepayne Community Hospital / Ontario Nurses' Association

2025–2027 · Health ? Social Services

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Hospice Niagara / Service Employees International Union, Local 1 Canada

2023–2025 · Health ? Social Services

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Hotel Dieu Shaver Health & Rehabilitation Centre / Ontario Nurses' Association

2025–2027 · Health ? Social Services

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Hotel Dieu Shaver Health & Rehabilitation Centre / Service Employees International Union, Local 1 Canada

2026–2028 · Health ? Social Services

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Hubbell Canada ULC / International Brotherhood Of Electrical Workers, Local 1590

2021–2024 · Manufacturing

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Huber Building Maintenance / Labourers' International Union of North America, Local 1059

2024–2027 · Other Services

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Humber Valley Terrace Operating Inc. operating as Humber Valley Terrace / Ontario Nurses' Association

2024–2026 · Health ? Social Services

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Huntsville District Nursing Home Incorporated (Fairvern Nursing Home) / Ontario Nurses' Association

2021–2024 · Health ? Social Services

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Hurricane Hydrovac Inc. a Division of Heaton Sanitation Ltd. / Labourers' International Union of North America, Local 1059

2022–2025 · Construction

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Hurricane Hydrovac Inc. a Division of Heaton Sanitation Ltd. / Labourers' International Union of North America, Local 625

2020–2023 · Construction

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Hurricane Hydrovac / International Union of Operating Engineers, Local 793

2025–2028 · Construction

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Hurricane Hydro Vac Services - London / International Union of Operating Engineers, Local 793

2021–2023 · Construction

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Hydromega Services Inc. / International Brotherhood Of Electrical Workers, Local 869

2025–2028 · Transport, Communications, ? Utilities

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Hypernetics, a division of Plaintree Systems Inc. / International Association Of Machinists And Aerospace Workers, Local 1542

2025–2030 · Manufacturing

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Iacobelli Construction Limited / International Union of Operating Engineers Local 793

2020–2024 · Construction

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Iago Forming Inc. / Labourers' International Union of North America, Local 183

2025–2028 · Construction

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Icon Excavating and Grading Inc. / International Union of Operating Engineers, Local 793

2025–2028 · Construction

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ICS Facility Services / Labourers' International Union of North America, Local 183

2025–2028 · Other Services

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ICS Facility Services / Service Employees International Union, Local 2

2025–2028 · Other Services

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Ideal Railings Ltd / Labourers' International Union of North America, Local 183

2025–2028 · Manufacturing

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I.G. Machine & Fibers Ltd. / United Steel, Paper and Forestry, Rubber, Manufacturing, Energy, Allied Industrial and Service Workers International Union, Local 9042

2022–2027 · Manufacturing

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