- Games & Hobbies, Newtown
- Garage Building & Repair, Newtown - Carports - Garage Builders
- Garage Doors & Door Operating Devices, Newtown
- Garage Doors & Gates, Newtown - Stores & Companies - Install & Repair Services
- Garage, Door & Window Products, Newtown
- Garbage & Rubbish Removal, Newtown
- Garment & Linen Services, Newtown
- Garment Pressing & Cleaners Agents, Newtown - Laundries & Dry Cleaners
- Gas Companies, Newtown
- Gas Station, Newtown - Service & Filling Station
- General Business Consulting, Newtown
- General Business Services, Newtown
- General Consultants, Newtown
- General Freight Trucking, Newtown - Motor Freight
- General Management Consulting Services, Newtown - Management Consultants
- General Merchandise Stores, Newtown
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- Generators, Compressors, Pumps, Motors & Fans, Newtown
- Gifts By Type & Occasion, Newtown
- Gifts, Cards & Stationery Stores, Newtown
- Glass & Glass Products, Newtown
- Glass - Auto, Float, Plate, Window & Doors, Newtown
- Government, Newtown
- Granite, Newtown
- Graphic Design Services, Newtown - Graphic Designer
- Graphic Designer & Artist Services, Newtown
- Greeting Card Stores, Newtown
- Grocery Stores & Supermarkets, Newtown
- Ground Transportation, Except Passenger, Newtown
- Guide & Directory Advertising Services, Newtown
- Gutters & Downspout Cleaning & Repairing, Newtown
- Gymnastics Schools, Newtown
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