- Games & Hobbies, North Hampton
- Garage, Door & Window Products, North Hampton
- Garment & Linen Services, North Hampton
- Gas Engine, North Hampton
- General Business Consulting, North Hampton
- General Business Services, North Hampton
- General Consultants, North Hampton
- General Management Consulting Services, North Hampton - Management Consultants
- General Merchandise Stores, North Hampton
- General Travel Agents & Agencies, North Hampton
- Gifts, Cards & Stationery Stores, North Hampton
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- Glass & Glazing Contractors, North Hampton
- Glass Tinting & Coating, North Hampton - Home - Car Window Tinting
- Golf Courses, North Hampton
- Golf Equipment & Supplies Stores, North Hampton - Golf Clubs, Balls, Carts, Bags, Apparel, Shoes & Accessories
- Golf Lessons & Instruction, North Hampton
- Government, North Hampton
- Granite, North Hampton
- Grocery Stores & Supermarkets, North Hampton
- Ground Transportation, Except Passenger, North Hampton
- Gymnastics Schools, North Hampton
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