- Games & Hobbies, Sylvania
- Garbage & Rubbish Removal, Sylvania
- Garment & Linen Services, Sylvania
- Gas & Air Compressors, Sylvania
- Gas Companies, Sylvania
- Gas Station, Sylvania - Service & Filling Station
- General Business Consulting, Sylvania
- General Business Services, Sylvania
- General Consultants, Sylvania
- General Freight Trucking, Sylvania - Motor Freight
- General Hardware Stores, Sylvania
- General Merchandise Stores, Sylvania
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- General Travel Agents & Agencies, Sylvania
- Generators, Compressors, Pumps, Motors & Fans, Sylvania
- Gifts, Cards & Stationery Stores, Sylvania
- Glass & Glass Products, Sylvania
- Glass - Auto, Float, Plate, Window & Doors, Sylvania
- Golf Courses, Sylvania
- Government, Sylvania
- Grocery Stores & Supermarkets, Sylvania
- Ground Transportation, Except Passenger, Sylvania
- Gun & Hunting & Fishing Clubs, Sylvania
- Gun Repair & Services, Sylvania
- Guns & Gunsmith Services, Sylvania
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