- Games & Hobbies, Swansea
- Garage, Door & Window Products, Swansea
- Garment & Linen Services, Swansea
- Gas Burner Service, Swansea
- Gas Detection, Asbestos & Lead Contractors, Swansea
- Gas Station, Swansea - Service & Filling Station
- Gazebo Builders, Swansea - Installation, Repair & Maintenance Services
- General Business Services, Swansea
- General Merchandise Stores, Swansea
- General Travel Agents & Agencies, Swansea
- Gift Shops, Swansea - Gift, Novelty & Souvenir Stores
- Gifts, Cards & Stationery Stores, Swansea
- Glass & Glass Products, Swansea
- Glass & Glazing Contractors, Swansea
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- Glass - Auto, Float, Plate, Window & Doors, Swansea
- Glass Repair, Swansea - Car, Window, Auto Glass Repair
- Golf Cars & Carts, Swansea
- Golf Courses, Swansea
- Golf Driving Ranges, Swansea
- Gospel Church, Swansea
- Government, Swansea
- Grace Gospel, Swansea
- Greeting Card Stores, Swansea
- Grocery Stores & Supermarkets, Swansea
- Ground Transportation, Except Passenger, Swansea
- Guide & Directory Advertising Services, Swansea
- Gymnastics Schools, Swansea
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