- Garbage & Rubbish Removal, Grafton
- Garment & Linen Services, Grafton
- Gas Engine, Grafton
- Gas Station, Grafton - Service & Filling Station
- General Business Consulting, Grafton
- General Business Services, Grafton
- General Consultants, Grafton
- General Freight Trucking, Grafton - Motor Freight
- General Merchandise Stores, Grafton
- Gifts, Cards & Stationery Stores, Grafton
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- Glass & Glass Products, Grafton
- Glass & Glazing Contractors, Grafton
- Glass - Auto, Float, Plate, Window & Doors, Grafton
- Glass Repair, Grafton - Car, Window, Auto Glass Repair
- Golf Courses, Grafton
- Government, Grafton
- Grain Drying Equipment, Grafton
- Grain Elevators, Grafton
- Grocery Stores & Supermarkets, Grafton
- Ground Transportation, Except Passenger, Grafton
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