- Games & Hobbies, Torrington
- Garage, Door & Window Products, Torrington
- Garbage & Rubbish Removal, Torrington
- Garment & Linen Services, Torrington
- Gas Station, Torrington - Service & Filling Station
- General Business Consulting, Torrington
- General Business Services, Torrington
- General Consultants, Torrington
- General Freight Trucking, Torrington - Motor Freight
- General Merchandise Stores, Torrington
- General Travel Agents & Agencies, Torrington
- Generators, Compressors, Pumps, Motors & Fans, Torrington
- Gift Shops, Torrington - Gift, Novelty & Souvenir Stores
- Gifts, Cards & Stationery Stores, Torrington
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- Glass & Glass Products, Torrington
- Glass & Glazing Contractors, Torrington
- Glass - Auto, Float, Plate, Window & Doors, Torrington
- Glass Tinting & Coating, Torrington - Home - Car Window Tinting
- Golf Courses, Torrington
- Golf Equipment & Supplies Stores, Torrington - Golf Clubs, Balls, Carts, Bags, Apparel, Shoes & Accessories
- Golf Equipment Repair & Sales, Torrington - Clubs, Carts, Bags & More
- Government, Torrington
- Grain Elevators, Torrington
- Grocery Stores & Supermarkets, Torrington
- Ground Transportation, Except Passenger, Torrington
- Gun Repair & Services, Torrington
- Guns & Gunsmith Services, Torrington
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