- Games & Hobbies, Winnsboro
- Garment & Linen Services, Winnsboro
- Gas Companies, Winnsboro
- Gas Station, Winnsboro - Service & Filling Station
- General Business Consulting, Winnsboro
- General Business Services, Winnsboro
- General Consultants, Winnsboro
- General Freight Trucking, Winnsboro - Motor Freight
- General Merchandise Stores, Winnsboro
- General Surgeons, Winnsboro - General Surgery Doctors, Physicians & Surgeons
- Generators, Compressors, Pumps, Motors & Fans, Winnsboro
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- Gifts, Cards & Stationery Stores, Winnsboro
- Glass & Glass Products, Winnsboro
- Glass - Auto, Float, Plate, Window & Doors, Winnsboro
- Golf Equipment & Supplies Stores, Winnsboro - Golf Clubs, Balls, Carts, Bags, Apparel, Shoes & Accessories
- Government, Winnsboro
- Grain Elevators, Winnsboro
- Grocery Stores & Supermarkets, Winnsboro
- Ground Transportation, Except Passenger, Winnsboro
- Guest Houses & Ranches, Winnsboro
- Gun Repair & Services, Winnsboro
- Guns & Gunsmith Services, Winnsboro
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