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Ontario Contractors

Search 22,802 official-source contractor records in Ontario. Filter by trade, source type, and direct contact availability.

Browse Ontario by city

Top city pages from the official-source dataset.

Toronto4,454Mississauga1,435Hamilton875Brampton586Markham574Concord510Richmond hill471Ottawa461London449Woodbridge361north york358vaughan340Burlington302Oakville272Scarborough257Etobicoke246Kitchener205Newmarket178Windsor173Cambridge170Thornhill166Pickering163Barrie161Guelph150Oshawa145Aurora136Whitby129Maple128Stoney Creek127Kingston123Ajax114St Catharines114Brantford112Waterloo110Bolton105Stouffville104

22,802 matching contractors

Showing page 432 of 457 from the national official-source dataset.

131,786 records loaded

MAIN DRAIN & PLUMBING

Municipal licence
General ContractorsToronto, ON
General ContractorsPlumbers

City of Toronto · #T94-5045128 · PLUMBING CONTRACTOR

Last seen May 7, 2026 · 2 source records

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MAINSTREAM MAINTENANCE LTD

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation Contractors

City of Toronto · #T85-3128530 · BUILDING RENOVATOR

Last seen May 7, 2026

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MAINSTREAM MECHANICAL

Municipal licence
HVACToronto, ON
HVACPlumbers

City of Toronto · #T95-4533382 · MASTER PLUMBER

Last seen May 7, 2026 · 2 source records

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MALEKZADEH, AMIR

Municipal licence
PlumbersToronto, ON
Plumbers

City of Toronto · #T95-5031431 · MASTER PLUMBER

Last seen May 7, 2026

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MALIBU DESIGN/BUILD INC

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation Contractors

City of Toronto · #T85-4178436 · BUILDING RENOVATOR

Last seen May 7, 2026

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MALIZIA, MICHELE

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation Contractors

City of Toronto · #T85-0021692 · BUILDING RENOVATOR

Last seen May 7, 2026

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MALONIE CONTRACTING

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation Contractors

City of Toronto · #T85-4704849 · BUILDING RENOVATOR

Last seen May 7, 2026

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MANCUSO PAVING LTD

Municipal licence
General ContractorsToronto, ON
General ContractorsPaving

City of Toronto · #T93-4426243 · DRIVEWAY PAVING CONTRACTOR

Last seen May 7, 2026

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MANEL CONTRACTING

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation Contractors

City of Toronto · #T85-4178819 · BUILDING RENOVATOR

Last seen May 7, 2026

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MANNERS GLASS SERVICES LTD

Municipal licence
Building EnvelopeToronto, ON
Building EnvelopeGeneral ContractorsRenovation Contractors

City of Toronto · #T85-4310357 · BUILDING RENOVATOR

Last seen May 7, 2026

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MANNY BUILD

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation Contractors

City of Toronto · #T85-4429468 · BUILDING RENOVATOR

Last seen May 7, 2026

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MAPLE CAY CONSTRUCTION

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation Contractors

City of Toronto · #T85-5200664 · BUILDING RENOVATOR

Last seen May 7, 2026

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MAR-TEK PLUMBING

Municipal licence
General ContractorsToronto, ON
General ContractorsPlumbers

City of Toronto · #T94-4418651 · PLUMBING CONTRACTOR

Last seen May 7, 2026 · 2 source records

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MARCI PLUMBING & HEATING

Municipal licence
General ContractorsToronto, ON
General ContractorsHVACPlumbers

City of Toronto · #T94-3120814 · PLUMBING CONTRACTOR

Last seen May 7, 2026 · 2 source records

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MARCON PLUMBING CO

Municipal licence
General ContractorsToronto, ON
General ContractorsHVACPlumbers

City of Toronto · #T94-3484514 · PLUMBING CONTRACTOR

Last seen May 7, 2026 · 2 source records

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MARE, ARMINDO

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation Contractors

City of Toronto · #T85-0069782 · BUILDING RENOVATOR

Last seen May 7, 2026

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MARIANI, MARIO

Municipal licence
PlumbersToronto, ON
Plumbers

City of Toronto · #T95-0215466 · MASTER PLUMBER

Last seen May 7, 2026

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MARILYN DRAIN SERVICE

Municipal licence
General ContractorsToronto, ON
General ContractorsPlumbers

City of Toronto · #T87-0000403 · DRAIN CONTRACTOR

Last seen May 7, 2026

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MARINGOLA, PAUL

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation Contractors

City of Toronto · #T85-3122073 · BUILDING RENOVATOR

Last seen May 7, 2026

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MARINUCCI, REMO

Municipal licence
PlumbersToronto, ON
Plumbers

City of Toronto · #T88-3845916 · DRAIN LAYER

Last seen May 7, 2026

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MARIO DI POCE CONTRACTING

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation Contractors

City of Toronto · #T85-3835841 · BUILDING RENOVATOR

Last seen May 7, 2026

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MARK JACKSON AND ASSOCIATES

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation Contractors

City of Toronto · #T85-3248989 · BUILDING RENOVATOR

Last seen May 7, 2026

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MARK'S MODERN CARPENTRY

Municipal licence
CarpentryToronto, ON
CarpentryGeneral ContractorsRenovation Contractors

City of Toronto · #T85-4075377 · BUILDING RENOVATOR

Last seen May 7, 2026

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MARKHAM MASONRY & CONTRACTING

Municipal licence
Concrete MasonryToronto, ON
Concrete MasonryGeneral ContractorsRenovation Contractors

City of Toronto · #T85-4823445 · BUILDING RENOVATOR

Last seen May 7, 2026

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MARKS PLUMBING SERVICES

Municipal licence
General ContractorsToronto, ON
General ContractorsPlumbers

City of Toronto · #T94-3595648 · PLUMBING CONTRACTOR

Last seen May 7, 2026 · 2 source records

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MARLEE PLUMBING

Municipal licence
General ContractorsToronto, ON
General ContractorsPlumbers

City of Toronto · #T94-3722539 · PLUMBING CONTRACTOR

Last seen May 7, 2026 · 2 source records

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MARTIN, YVON

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation Contractors

City of Toronto · #T85-0243616 · BUILDING RENOVATOR

Last seen May 7, 2026

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MARTINS, JOSEPH

Municipal licence
HVACToronto, ON
HVAC

City of Toronto · #T96-0237273 · MASTER HEATING INSTALLER

Last seen May 7, 2026

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MARTINWAY CONTRACTING LTD

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation Contractors

City of Toronto · #T85-0050410 · BUILDING RENOVATOR

Last seen May 7, 2026

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MASEN MECHANICAL

Municipal licence
HVACToronto, ON
HVACPlumbers

City of Toronto · #T95-3954588 · MASTER PLUMBER

Last seen May 7, 2026 · 2 source records

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MASS MECHANICAL & PLUMBING

Municipal licence
General ContractorsToronto, ON
General ContractorsHVACPlumbers

City of Toronto · #T94-3090513 · PLUMBING CONTRACTOR

Last seen May 7, 2026 · 2 source records

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MASTER METAL MEN

Municipal licence
General ContractorsToronto, ON
General ContractorsRenovation Contractors

City of Toronto · #T85-4531712 · BUILDING RENOVATOR

Last seen May 7, 2026

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