- Gas Liquefied Petroleum, Petersburg
- Gases, Petersburg
- General Business Services, Petersburg
- General Freight Trucking, Petersburg - Motor Freight
- General Merchandise Stores, Petersburg
- Gift Shops, Petersburg - Gift, Novelty & Souvenir Stores
- Gifts, Cards & Stationery Stores, Petersburg
- Glass & Glass Products, Petersburg
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- Glass - Auto, Float, Plate, Window & Doors, Petersburg
- Golf Courses, Petersburg
- Gospel Church, Petersburg
- Government, Petersburg
- Greeting Card Stores, Petersburg
- Grocery Stores & Supermarkets, Petersburg
- Ground Transportation, Except Passenger, Petersburg
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