- Games & Hobbies, Ellington
- Garage Building & Repair, Ellington - Carports - Garage Builders
- Garage Doors & Door Operating Devices, Ellington
- Garage Doors & Gates, Ellington - Stores & Companies - Install & Repair Services
- Garage, Door & Window Products, Ellington
- Garment & Linen Services, Ellington
- Gas Appliance Repair, Maintenance & Service, Ellington
- Gas Detection, Asbestos & Lead Contractors, Ellington
- Gas Station, Ellington - Service & Filling Station
- General Business Services, Ellington
- General Hardware Stores, Ellington
- General Merchandise Stores, Ellington
- General Travel Agents & Agencies, Ellington
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- Generators, Compressors, Pumps, Motors & Fans, Ellington
- Gifts, Cards & Stationery Stores, Ellington
- Glass & Glass Products, Ellington
- Glass - Auto, Float, Plate, Window & Doors, Ellington
- Golf Courses, Ellington
- Golf Lessons & Instruction, Ellington
- Government, Ellington
- Graphic Design Services, Ellington - Graphic Designer
- Graphic Designer & Artist Services, Ellington
- Grocery Stores & Supermarkets, Ellington
- Ground Transportation, Except Passenger, Ellington
- Gun Repair & Services, Ellington
- Guns & Gunsmith Services, Ellington
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