Companies catalogue
- G Mc Quaid Contracting, Bowmanville
- G'Molly's Fries, Oshawa
- GE Grid Solutions, Markham
- GFL Environmental, Pickering
- GFL Environmental, Pickering
- GLOBAL, Oshawa
- GOLFTEC Markham, Markham
- GOLFTEC Whitby, Whitby
- GTA Endoscopy Services Inc., Toronto
- GTA Gum Removal Ltd., Markham
- Gala Glass, Oshawa
- Galaxy Gymnastics & Fitness, Bowmanville
- Gamma Foundries, Richmond Hill
- Ganaraska Grain, Port Hope
- Gap Body, Edmonton
- Gardener Landscape Maintenance, Toronto
- Gardener Landscape Manitenance, Orono
- Garry Francis Officiating Services, Whitby
- Gary Anandasangaree, Member of Parliament, Toronto
- Gary Kent Golf Schools of Ontario, Markham
- Gault Reliance Elevator Company, Pickering
- Geddes Custom Renovations, Edmonton
- Geisberger Ron Farms, Oshawa
- Genealogy Society Durham Region Branch, Oshawa
- Genesys Caribbean Fusion, Whitby
- German lessons, Toronto
- Geron Associates Ltd, Markham
- Glass Effect, Edmonton
- Glazier Medical Centre, Oshawa
- Glazier Medical Centre - Travel Clinic, Oshawa
- Glen Cedars, Pickering
- Glen Street Public School, Oshawa
- Glendale Medical Clinic, Pickering
- Global, Oshawa
- Global, Hampton
- Global Career Centre, Whitby
- Global Education Foundation, Richmond Hill
- Global Emission Systems, Whitby
- Global Satellite Soccer Academy, Ajax
- Godwin Pok Yin Tang, Richmond Hill
- Gold Boat Fish & Chips, Oshawa
- Golden Embassy, Toronto
- GoldenMoney, Toronto
- Golf and Performance, Markham
- Golfer's Dream, Scugog
- Golftec Richmond Hill, Richmond Hill
- Good Shepherd C. E. S., Courtice
- Gord Smith Marine Sales & Service Inc, Hamilton
- Gourmet Schnitzel House, Toronto
- Graffiti Removal - Canadian Restorations, Toronto
- Graham Creek Farm, Newcastle
- Graham Summerhayes, Whitchurch-Stouffville
- Grand International Professional School, Whitby
- Granite Golf Club, Whitchurch-Stouffville
- Grape Gallery (The), Sherwood Park
- Great Rate Mortgage, Oshawa
- Greater Sudbury ATV, Sudbury
- Greek Grill, Toronto
- Greek Orthodox Family Services & Counselling, Toronto
- Greek Tycoon Restaurant, Whitby
- Green Acres Outdoor Education Centre Markham, Markham
- Green P Parking, Toronto
- Green Side Up Environmental Services, Kawartha Lakes
- Greenhouse Juice Co., Toronto
- Greenway Therapy Clinic, Toronto
- Grist Financial Services, Whitby
- Grizzly Bear Exhibit, Toronto
- Grossman Jeff Dr, Whitby
- Grout Cleaning Services Tigro Restoration Midtown, Toronto
- GuestDeck, Richmond Hill
- Guildhall Wealth Management Inc., Markham
- Guitar Lessons Toronto, Toronto
- Guitarworx, Port Hope