- Gambling & Lottery Services, North York
- Games Toys & Childrens Vehicles Manufacturers, North York
- Garage Doors & Door Operating Devices, North York
- Garage Doors & Gates, North York - Stores & Companies - Install & Repair Services
- Garage, Door & Window Products, North York
- Garbage Disposals, North York
- Garment & Linen Services, North York
- Gas Line Installation Contractors, North York - Gas Pipe Installation - Repair Service
- Gas Station, North York - Service & Filling Station
- Gears, North York
- General Business Consulting, North York
- General Business Services, North York
- General Consultants, North York
- General Freight Trucking, North York - Motor Freight
- General Hardware Stores, North York
- General Management Consultants & Services, North York
- General Management Consulting Services, North York - Management Consultants
- General Merchandise Stores, North York
- General Travel Agents & Agencies, North York
- Gift Baskets, North York
- Gift Wrapping Materials, North York
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- Gifts By Type & Occasion, North York
- Gifts Wholesale & Retail, North York
- Gifts, Cards & Stationery Stores, North York
- Glass & Glass Products, North York
- Glass - Auto, Float, Plate, Window & Doors, North York
- Gloves Retail, North York
- Gold, Silver & Platinum Buyers, Sellers & Dealers, North York
- Golf Courses, North York
- Golf Equipment & Supplies Stores, North York - Golf Clubs, Balls, Carts, Bags, Apparel, Shoes & Accessories
- Goodyear Tires, North York - Dealers
- Government, North York
- Gps Navigation Systems & Services, North York
- Granite, North York
- Graphic Design Services, North York - Graphic Designer
- Graphic Designer & Artist Services, North York
- Greek Restaurants, North York
- Greeting Card Stores, North York
- Grinding Services, North York
- Grocery Stores & Supermarkets, North York
- Ground Transportation, Except Passenger, North York
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