- Games & Hobbies, Sidney
- Garage Doors & Door Operating Devices, Sidney
- Garage Doors & Gates, Sidney - Stores & Companies - Install & Repair Services
- Garage, Door & Window Products, Sidney
- Garbage & Rubbish Removal, Sidney
- Garment & Linen Services, Sidney
- Gas & Air Compressors, Sidney
- Gas Station, Sidney - Service & Filling Station
- Gastroenterologists, Sidney - GI Doctors, Physicians & Surgeons (Gastroenterology)
- Gate & Fence Repair, Sidney
- General Business Consulting, Sidney
- General Business Services, Sidney
- General Consultants, Sidney
- General Freight Trucking, Sidney - Motor Freight
- General Hardware Stores, Sidney
- General Merchandise Stores, Sidney
- General Surgeons, Sidney - General Surgery Doctors, Physicians & Surgeons
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- General Travel Agents & Agencies, Sidney
- Generator Sales & Rental, Sidney - Contractors Supplies & Equipment
- Generators, Compressors, Pumps, Motors & Fans, Sidney
- Gifts, Cards & Stationery Stores, Sidney
- Glass & Glass Products, Sidney
- Glass & Glazing Contractors, Sidney
- Glass - Auto, Float, Plate, Window & Doors, Sidney
- Glass Repair, Sidney - Car, Window, Auto Glass Repair
- Golf Cars & Carts, Sidney
- Golf Courses, Sidney
- Government, Sidney
- Granite, Sidney
- Grocery Stores & Supermarkets, Sidney
- Ground Transportation, Except Passenger, Sidney
- Gun Repair & Services, Sidney
- Guns & Gunsmith Services, Sidney
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