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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 193 of 457 from the national official-source dataset.

131,786 records loaded

Alpine Electric

Regulated licence
ElectriciansThunder Bay, ON
Electricians

Electrical Safety Authority · #7016298 · Licensed Electrical Contractor

Last seen May 7, 2026

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Bay Power

Regulated licence
ElectriciansThunder Bay, ON
Electricians

Electrical Safety Authority · #7014685 · Licensed Electrical Contractor

Last seen May 7, 2026

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Bayview Electric Inc

Regulated licence
ElectriciansThunder Bay, ON
Electricians

Electrical Safety Authority · #7007895 · Licensed Electrical Contractor

Last seen May 7, 2026

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Clow Darling Limited

Regulated licence
ElectriciansThunder Bay, ON
Electricians

Electrical Safety Authority · #7005423 · Licensed Electrical Contractor

Last seen May 7, 2026

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CRAIG PLUMBING CENTRE LTD.

Regulated licence
PlumbersThunder Bay, ON
PlumbersWell Drillers

Ontario Ministry of the Environment, Conservation and Parks · #8061 · Licensed well contractor CLASS 4

Last seen May 15, 2026

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Go-Electric

Regulated licence
ElectriciansThunder Bay, ON
Electricians

Electrical Safety Authority · #7009200 · Licensed Electrical Contractor

Last seen May 7, 2026

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Grid Link Corp

Regulated licence
ElectriciansThunder Bay, ON
Electricians

Electrical Safety Authority · #7000092 · Licensed Electrical Contractor

Last seen May 7, 2026

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Kapush Energy Inc

Regulated licence
ElectriciansThunder Bay, ON
Electricians

Electrical Safety Authority · #7013132 · Licensed Electrical Contractor

Last seen May 7, 2026

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Killawatt Electrical Inc

Regulated licence
ElectriciansThunder Bay, ON
Electricians

Electrical Safety Authority · #7010795 · Licensed Electrical Contractor

Last seen May 7, 2026

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Koski Electric

Regulated licence
ElectriciansThunder Bay, ON
Electricians

Electrical Safety Authority · #7016466 · Licensed Electrical Contractor

Last seen May 7, 2026

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Len Carr Electric Ltd

Regulated licence
ElectriciansThunder Bay, ON
Electricians

Electrical Safety Authority · #7001738 · Licensed Electrical Contractor

Last seen May 7, 2026

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LRT Electrical

Regulated licence
ElectriciansThunder Bay, ON
Electricians

Electrical Safety Authority · #7014121 · Licensed Electrical Contractor

Last seen May 7, 2026

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Mallren Contracting Ltd

Regulated licence
ElectriciansThunder Bay, ON
ElectriciansGeneral Contractors

Electrical Safety Authority · #7007173 · Licensed Electrical Contractor

Last seen May 7, 2026

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Mark Whatley Electric

Regulated licence
ElectriciansThunder Bay, ON
Electricians

Electrical Safety Authority · #7003031 · Licensed Electrical Contractor

Last seen May 7, 2026

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Markat

Regulated licence
ElectriciansThunder Bay, ON
Electricians

Electrical Safety Authority · #7017245 · Licensed Electrical Contractor

Last seen May 7, 2026

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NWO WELL SERVICES LTD.

Regulated licence
Well DrillersThunder Bay, ON
Well Drillers

Ontario Ministry of the Environment, Conservation and Parks · #7475 · Licensed well contractor CLASS 1, 4

Last seen May 15, 2026

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Over-All Electric Inc

Regulated licence
ElectriciansThunder Bay, ON
Electricians

Electrical Safety Authority · #7014876 · Licensed Electrical Contractor

Last seen May 7, 2026

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Pa Grant Electric

Regulated licence
ElectriciansThunder Bay, ON
Electricians

Electrical Safety Authority · #7000059 · Licensed Electrical Contractor

Last seen May 7, 2026

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R&D Electric Ltd

Regulated licence
ElectriciansThunder Bay, ON
Electricians

Electrical Safety Authority · #7018038 · Licensed Electrical Contractor

Last seen May 7, 2026

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SAARI ARTESIAN SPRINGS INC

Regulated licence
Well DrillersThunder Bay, ON
Well Drillers

Ontario Ministry of the Environment, Conservation and Parks · #7712 · Licensed well contractor CLASS 4

Last seen May 15, 2026

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Skilled Electric Inc

Regulated licence
ElectriciansThunder Bay, ON
Electricians

Electrical Safety Authority · #7009716 · Licensed Electrical Contractor

Last seen May 7, 2026

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T P Electric

Regulated licence
ElectriciansThunder Bay, ON
Electricians

Electrical Safety Authority · #7004592 · Licensed Electrical Contractor

Last seen May 7, 2026

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Tasec Inc.

Regulated licence
ElectriciansThunder Bay, ON
Electricians

Electrical Safety Authority · #7017651 · Licensed Electrical Contractor

Last seen May 7, 2026

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TBT ENGINEERING LIMITED

Regulated licence
Well DrillersThunder Bay, ON
Well Drillers

Ontario Ministry of the Environment, Conservation and Parks · #7267 · Licensed well contractor CLASS 3, EXEMPT CLASS5

Last seen May 15, 2026

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