Ontario Contractors

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

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131,786

91,145 with direct contact

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Ontario

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22,802 matching contractors

Showing page 70 of 457 from the national official-source dataset.

131,786 records loaded

Adam Electrical & Electronics Inc

Regulated licence

ElectriciansGravenhurst, ON

Electricians

Electrical Safety Authority · #7003992 · Licensed Electrical Contractor

Last seen May 7, 2026

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7056873702

Adroit Electrical Services (Lee Weisflock)

Regulated licence

ElectriciansGravenhurst, ON

Electricians

Electrical Safety Authority · #7016863 · Licensed Electrical Contractor

Last seen May 7, 2026

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7053218625

Bowering Plumbing & Heating Inc.

Regulated licence

HVACGravenhurst, ON

HVACPlumbersWell Drillers

Ontario Ministry of the Environment, Conservation and Parks · #8172 · Licensed well contractor CLASS 4

Last seen May 15, 2026

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(705) 644-9055

Cottage Country Electrical Contract (1000927477 Ontario Inc.)

Regulated licence

ElectriciansGravenhurst, ON

Electricians

Electrical Safety Authority · #7017617 · Licensed Electrical Contractor

Last seen May 7, 2026

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7055351622

Craig Hunter Electric Inc

Regulated licence

ElectriciansGravenhurst, ON

Electricians

Electrical Safety Authority · #7004385 · Licensed Electrical Contractor

Last seen May 7, 2026

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7056400339

Dawson'S Incorporated

Regulated licence

ElectriciansGravenhurst, ON

Electricians

Electrical Safety Authority · #7001193 · Licensed Electrical Contractor

Last seen May 7, 2026

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7056452209

Duncan Sanderson Electric

Regulated licence

ElectriciansGravenhurst, ON

Electricians

Electrical Safety Authority · #7002801 · Licensed Electrical Contractor

Last seen May 7, 2026

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7056442761

Gauthier Group Development Company Inc.

Regulated licence

General ContractorsGravenhurst, ON

General ContractorsResidential Builders

Home Construction Regulatory Authority · #B44268 · Licensed builder/vendor

Last seen May 15, 2026

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Grant Morris Power & Pipes (1315133 Ontario Inc)

Regulated licence

ElectriciansGravenhurst, ON

ElectriciansPlumbers

Electrical Safety Authority · #7000670 · Licensed Electrical Contractor

Last seen May 7, 2026

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7056875756

Green Electrical Contracting Inc.

Regulated licence

ElectriciansGravenhurst, ON

ElectriciansGeneral Contractors

Electrical Safety Authority · #7018144 · Licensed Electrical Contractor

Last seen May 7, 2026

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7053337829

Henderson Electrical Services Ltd

Regulated licence

ElectriciansGravenhurst, ON

Electricians

Electrical Safety Authority · #7017673 · Licensed Electrical Contractor

Last seen May 7, 2026

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7058015356

Marlow & Sons Electrical & (Contracting Ltd.)

Regulated licence

ElectriciansGravenhurst, ON

ElectriciansGeneral Contractors

Electrical Safety Authority · #7018537 · Licensed Electrical Contractor

Last seen May 7, 2026

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9057519003

MDM Developments

Regulated licence

General ContractorsGravenhurst, ON

General ContractorsResidential Builders

Home Construction Regulatory Authority · #B38518 · Licensed builder/vendor

Last seen May 15, 2026

Email Website View profile

Regulated licence

General ContractorsGreely, ON

General ContractorsResidential Builders

Home Construction Regulatory Authority · #B32982 · Licensed builder/vendor

Last seen May 15, 2026

Email Website View profile

Central Electric

Regulated licence

ElectriciansGreely, ON

Electricians

Electrical Safety Authority · #7014702 · Licensed Electrical Contractor

Last seen May 7, 2026

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6136088619

Detailed Wiring Inc.

Regulated licence

ElectriciansGreely, ON

Electricians

Electrical Safety Authority · #7011896 · Licensed Electrical Contractor

Last seen May 7, 2026

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6134242375

HILLS & VALLEY WATER SYSTEMS INC.

Regulated licence

Well DrillersGreely, ON

Well Drillers

Ontario Ministry of the Environment, Conservation and Parks · #7395 · Licensed well contractor CLASS 4

Last seen May 15, 2026

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(613) 979-7873

Joni Electric Inc.

Regulated licence

ElectriciansGreely, ON

Electricians

Electrical Safety Authority · #7012969 · Licensed Electrical Contractor

Last seen May 7, 2026

Call Website View profile

6134080206

MARATHON UNDERGROUND CONSTRUCTORS CORPORATION

Regulated licence

Well DrillersGreely, ON

Well Drillers

Ontario Ministry of the Environment, Conservation and Parks · #8162 · Licensed well contractor CLASS 1, 2, 3, 4

Last seen May 15, 2026

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(613) 821-4800

Bce Bill Cordner Electrical

Regulated licence

ElectriciansGreen Valley, ON

Electricians

Electrical Safety Authority · #7015810 · Licensed Electrical Contractor

Last seen May 7, 2026

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6135254613

Ionic Electrical Contracting Inc

Regulated licence

ElectriciansGreen Valley, ON

ElectriciansGeneral Contractors

Electrical Safety Authority · #7009315 · Licensed Electrical Contractor

Last seen May 7, 2026

Call Website View profile

6133625747

Michel Joanette Electrique

Regulated licence

ElectriciansGreen Valley, ON

Electricians

Electrical Safety Authority · #7005365 · Licensed Electrical Contractor

Last seen May 7, 2026

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6135254633

Lifepath (1267759 Ontario Inc)

Regulated licence

ElectriciansGreensville, ON

Electricians

Electrical Safety Authority · #7004442 · Licensed Electrical Contractor

Last seen May 7, 2026

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9055187095

8978514 CANADA INC.

Regulated licence

Well DrillersGrenville, ON

Well Drillers

Ontario Ministry of the Environment, Conservation and Parks · #7579 · Licensed well contractor CLASS 3

Last seen May 15, 2026

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(450) 566-3636

GEORGE DOWNING ESTATE DRILLING LIMITED

Regulated licence

Well DrillersGrenville-Sur-La-Rouge, ON

Well Drillers

Ontario Ministry of the Environment, Conservation and Parks · #1844 · Licensed well contractor CLASS 1, 2, 3

Last seen May 15, 2026

Call Website View profile

(819) 242-6469

William Adams

Regulated licence

ElectriciansGriffith, ON

Electricians

Electrical Safety Authority · #7002531 · Licensed Electrical Contractor

Last seen May 7, 2026

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6133331055

1001109134 Ontario Inc

Regulated licence

ElectriciansGrimsby, ON

Electricians

Electrical Safety Authority · #7018062 · Licensed Electrical Contractor

Last seen May 7, 2026

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6472232058

A List Electrical Contracting Inc

Regulated licence

ElectriciansGrimsby, ON

ElectriciansGeneral Contractors

Electrical Safety Authority · #7013201 · Licensed Electrical Contractor

Last seen May 7, 2026

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9059067510

Adam Swanwick

Regulated licence

ElectriciansGrimsby, ON

Electricians

Electrical Safety Authority · #7006860 · Licensed Electrical Contractor

Last seen May 7, 2026

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9053099794

ASR Electrical

Regulated licence

ElectriciansGrimsby, ON

Electricians

Electrical Safety Authority · #7018695 · Licensed Electrical Contractor

Last seen May 7, 2026

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2899295982

Avenue Electric

Regulated licence

ElectriciansGrimsby, ON

Electricians

Electrical Safety Authority · #7014289 · Licensed Electrical Contractor

Last seen May 7, 2026

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9056587207

Begley Electric Inc.

Regulated licence

ElectriciansGrimsby, ON

Electricians

Electrical Safety Authority · #7012400 · Licensed Electrical Contractor

Last seen May 7, 2026

Call Website View profile

2894550226

Cedardale Contracting (1198939 Ontario Inc)

Regulated licence

ElectriciansGrimsby, ON

ElectriciansGeneral Contractors

Electrical Safety Authority · #7002262 · Licensed Electrical Contractor

Last seen May 7, 2026

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9056647707

D G C

Regulated licence

ElectriciansGrimsby, ON

Electricians

Electrical Safety Authority · #7006419 · Licensed Electrical Contractor

Last seen May 7, 2026

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9053090096

Desna Power Ltd.

Regulated licence

ElectriciansGrimsby, ON

Electricians

Electrical Safety Authority · #7017893 · Licensed Electrical Contractor

Last seen May 7, 2026

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5196944148

Gerber Build Inc.

Regulated licence

ElectriciansGrimsby, ON

Electricians

Electrical Safety Authority · #7018572 · Licensed Electrical Contractor

Last seen May 7, 2026

Call Website View profile

2892603978

Grimsby Electric Ltd

Regulated licence

ElectriciansGrimsby, ON

Electricians

Electrical Safety Authority · #7001754 · Licensed Electrical Contractor

Last seen May 7, 2026

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9059451055

Ion (2612497 Ontario Inc)

Regulated licence

ElectriciansGrimsby, ON

Electricians

Electrical Safety Authority · #7013682 · Licensed Electrical Contractor

Last seen May 7, 2026

Call Website View profile

2894567791

J.B. Electrical Contracting Inc.

Regulated licence

ElectriciansGrimsby, ON

ElectriciansGeneral Contractors

Electrical Safety Authority · #7015795 · Licensed Electrical Contractor

Last seen May 7, 2026

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6473004330

JSL Electric Inc

Regulated licence

ElectriciansGrimsby, ON

Electricians

Electrical Safety Authority · #7009725 · Licensed Electrical Contractor

Last seen May 7, 2026

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9059711510

Kelemen Gabor General (Contracting Ltd)

Regulated licence

ElectriciansGrimsby, ON

ElectriciansGeneral Contractors

Electrical Safety Authority · #7000677 · Licensed Electrical Contractor

Last seen May 7, 2026

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4165714079