COLESTAR ENVIRONMENTAL INC.
Regulated licenceWell DrillersMarkham, ON
Well Drillers
Ontario Ministry of the Environment, Conservation and Parks · #7431 · Licensed well contractor EXEMPT-CLASS 5
Last seen May 15, 2026
ON
Markham, ON Contractors
Search 574 official-source contractor records in Markham, Ontario. Filter by trade, source type, and direct contact availability.
574 matching contractors
Showing page 2 of 12 from the national official-source dataset.
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Colombia Electrical & Mechanical
Regulated licenceElectriciansMarkham, ON
ElectriciansHVAC
Electrical Safety Authority · #7008115 · Licensed Electrical Contractor
Last seen May 7, 2026
Conterra Group Inc.
Regulated licenceElectriciansMarkham, ON
Electricians
Electrical Safety Authority · #7014737 · Licensed Electrical Contractor
Last seen May 7, 2026
Cornel Electrical
Regulated licenceElectriciansMarkham, ON
Electricians
Electrical Safety Authority · #7012538 · Licensed Electrical Contractor
Last seen May 7, 2026
CVM Electric (1836401 Ontario Inc)
Regulated licenceElectriciansMarkham, ON
Electricians
Electrical Safety Authority · #7008327 · Licensed Electrical Contractor
Last seen May 7, 2026
CVM Electric Ltd.
Regulated licenceElectriciansMarkham, ON
Electricians
Electrical Safety Authority · #7017367 · Licensed Electrical Contractor
Last seen May 7, 2026
D.N.A. Electrical Services
Regulated licenceElectriciansMarkham, ON
Electricians
Electrical Safety Authority · #7007374 · Licensed Electrical Contractor
Last seen May 7, 2026
Da Tech Electric Inc.
Regulated licenceElectriciansMarkham, ON
Electricians
Electrical Safety Authority · #7013841 · Licensed Electrical Contractor
Last seen May 7, 2026
Das Electrical Contractor (Trevor Anthony Hoilett)
Regulated licenceElectriciansMarkham, ON
ElectriciansGeneral Contractors
Electrical Safety Authority · #7007862 · Licensed Electrical Contractor
Last seen May 7, 2026
Direct Electric C Inc.
Regulated licenceElectriciansMarkham, ON
Electricians
Electrical Safety Authority · #7006142 · Licensed Electrical Contractor
Last seen May 7, 2026
Dualzon Electric Inc
Regulated licenceElectriciansMarkham, ON
Electricians
Electrical Safety Authority · #7017352 · Licensed Electrical Contractor
Last seen May 7, 2026
E Plus Electrical Inc.
Regulated licenceElectriciansMarkham, ON
Electricians
Electrical Safety Authority · #7015672 · Licensed Electrical Contractor
Last seen May 7, 2026
E.Z.Contractor (2406475 Ontario Inc)
Regulated licenceElectriciansMarkham, ON
ElectriciansGeneral Contractors
Electrical Safety Authority · #7010135 · Licensed Electrical Contractor
Last seen May 7, 2026
Eastern Electric (Eastern Electric (Toronto) Ltd)
Regulated licenceElectriciansMarkham, ON
Electricians
Electrical Safety Authority · #7008336 · Licensed Electrical Contractor
Last seen May 7, 2026
Eastern Electric Ltd
Regulated licenceElectriciansMarkham, ON
Electricians
Electrical Safety Authority · #7011686 · Licensed Electrical Contractor
Last seen May 7, 2026
Elecpower Inc
Regulated licenceElectriciansMarkham, ON
Electricians
Electrical Safety Authority · #7013408 · Licensed Electrical Contractor
Last seen May 7, 2026
Electrical Testing And Maintenance (Services Inc.)
Regulated licenceElectriciansMarkham, ON
Electricians
Electrical Safety Authority · #7015751 · Licensed Electrical Contractor
Last seen May 7, 2026
Electrobauer Systems Limited
Regulated licenceElectriciansMarkham, ON
Electricians
Electrical Safety Authority · #7012986 · Licensed Electrical Contractor
Last seen May 7, 2026
Electrofit Electrical Contractors
Regulated licenceElectriciansMarkham, ON
ElectriciansGeneral Contractors
Electrical Safety Authority · #7017795 · Licensed Electrical Contractor
Last seen May 7, 2026
Electromec Service Ltd
Regulated licenceElectriciansMarkham, ON
Electricians
Electrical Safety Authority · #7016167 · Licensed Electrical Contractor
Last seen May 7, 2026
Electrust Contracting Inc
Regulated licenceElectriciansMarkham, ON
ElectriciansGeneral Contractors
Electrical Safety Authority · #7007460 · Licensed Electrical Contractor
Last seen May 7, 2026
Ellcan Electric Co Ltd
Regulated licenceElectriciansMarkham, ON
Electricians
Electrical Safety Authority · #7003368 · Licensed Electrical Contractor
Last seen May 7, 2026
Emctech Inc.
Regulated licenceElectriciansMarkham, ON
Electricians
Electrical Safety Authority · #7004728 · Licensed Electrical Contractor
Last seen May 7, 2026
Enercare Home And Commercial (Services Ltd Partnership Attn Legal)
Regulated licenceElectriciansMarkham, ON
Electricians
Electrical Safety Authority · #7010500 · Licensed Electrical Contractor
Last seen May 7, 2026
Energy Watch Inc
Regulated licenceElectriciansMarkham, ON
Electricians
Electrical Safety Authority · #7005435 · Licensed Electrical Contractor
Last seen May 7, 2026
Enpower Electric Inc
Regulated licenceElectriciansMarkham, ON
Electricians
Electrical Safety Authority · #7009023 · Licensed Electrical Contractor
Last seen May 7, 2026
Epower Electrical Contractor (7199741 Canada Limited)
Regulated licenceElectriciansMarkham, ON
ElectriciansGeneral Contractors
Electrical Safety Authority · #7008160 · Licensed Electrical Contractor
Last seen May 7, 2026
Etel Construction
Regulated licenceElectriciansMarkham, ON
ElectriciansGeneral Contractors
Electrical Safety Authority · #7009970 · Licensed Electrical Contractor
Last seen May 7, 2026
Etko Electric Inc.
Regulated licenceElectriciansMarkham, ON
Electricians
Electrical Safety Authority · #7017750 · Licensed Electrical Contractor
Last seen May 7, 2026
Evans Electrical Services (1563433 Ontario Inc)
Regulated licenceElectriciansMarkham, ON
Electricians
Electrical Safety Authority · #7002828 · Licensed Electrical Contractor
Last seen May 7, 2026
Fairglen Homes Limited
Regulated licenceGeneral ContractorsMarkham, ON
General ContractorsResidential Builders
Home Construction Regulatory Authority · #B23690 · Licensed builder/vendor
Last seen May 15, 2026
Fantasia Construction (13554236 Canada Inc)
Regulated licenceElectriciansMarkham, ON
ElectriciansGeneral Contractors
Electrical Safety Authority · #7016187 · Licensed Electrical Contractor
Last seen May 7, 2026
Feldt Electric Inc
Regulated licenceElectriciansMarkham, ON
Electricians
Electrical Safety Authority · #7006987 · Licensed Electrical Contractor
Last seen May 7, 2026
First Security Protection Services Inc
Regulated licenceElectriciansMarkham, ON
Electricians
Electrical Safety Authority · #7014114 · Licensed Electrical Contractor
Last seen May 7, 2026
Fisher Engineering Limited
Regulated licenceWell DrillersMarkham, ON
Well Drillers
Ontario Ministry of the Environment, Conservation and Parks · #8139 · Licensed well contractor CLASS 3
Last seen May 15, 2026
Focal Point Connectivity Inc.
Regulated licenceElectriciansMarkham, ON
Electricians
Electrical Safety Authority · #7016117 · Licensed Electrical Contractor
Last seen May 7, 2026
FRONTOP ENGINEERING LIMITED
Regulated licenceWell DrillersMarkham, ON
Well Drillers
Ontario Ministry of the Environment, Conservation and Parks · #7577 · Licensed well contractor CLASS 5
Last seen May 15, 2026
FTC Construction Corp.
Regulated licenceGeneral ContractorsMarkham, ON
General ContractorsResidential Builders
Home Construction Regulatory Authority · #B61646 · Licensed builder/vendor
Last seen May 15, 2026
Fulton Homes Inc.
Regulated licenceGeneral ContractorsMarkham, ON
General ContractorsResidential Builders
Home Construction Regulatory Authority · #B48433 · Licensed builder/vendor
Last seen May 15, 2026
G Ho Contracting Co Ltd
Regulated licenceElectriciansMarkham, ON
ElectriciansGeneral Contractors
Electrical Safety Authority · #7000730 · Licensed Electrical Contractor
Last seen May 7, 2026
Gadsden Electric
Regulated licenceElectriciansMarkham, ON
Electricians
Electrical Safety Authority · #7015824 · Licensed Electrical Contractor
Last seen May 7, 2026
General Hvac & Electrical (1761939 Ontario Inc)
Regulated licenceElectriciansMarkham, ON
ElectriciansHVAC
Electrical Safety Authority · #7006548 · Licensed Electrical Contractor
Last seen May 7, 2026
Geranium Claremont Inc.
Regulated licenceGeneral ContractorsMarkham, ON
General ContractorsResidential Builders
Home Construction Regulatory Authority · #B62207 · Licensed builder/vendor
Last seen May 15, 2026
GKM Electrical Services Company (Gkm & Simba Transportation Service)
Regulated licenceElectriciansMarkham, ON
Electricians
Electrical Safety Authority · #7017889 · Licensed Electrical Contractor
Last seen May 7, 2026
Gladwood Homes Limited
Regulated licenceGeneral ContractorsMarkham, ON
General ContractorsResidential Builders
Home Construction Regulatory Authority · #B31267 · Licensed builder/vendor
Last seen May 15, 2026
Great Ascent Homes
Regulated licenceGeneral ContractorsMarkham, ON
General ContractorsResidential Builders
Home Construction Regulatory Authority · #B61659 · Licensed builder/vendor
Last seen May 15, 2026
Gta Power Electrical (2357378 Ontario Inc)
Regulated licenceElectriciansMarkham, ON
Electricians
Electrical Safety Authority · #7013715 · Licensed Electrical Contractor
Last seen May 7, 2026
Hans Electric Ltd
Regulated licenceElectriciansMarkham, ON
Electricians
Electrical Safety Authority · #7002421 · Licensed Electrical Contractor
Last seen May 7, 2026
Harp Electric Limited
Regulated licenceElectriciansMarkham, ON
Electricians
Electrical Safety Authority · #7003294 · Licensed Electrical Contractor
Last seen May 7, 2026
Heng Rong Electrical Ltd
Regulated licenceElectriciansMarkham, ON
Electricians
Electrical Safety Authority · #7015876 · Licensed Electrical Contractor
Last seen May 7, 2026