- Games & Hobbies, Houghton
- Garage Doors & Door Operating Devices, Houghton
- Garage Doors & Gates, Houghton - Stores & Companies - Install & Repair Services
- Garage, Door & Window Products, Houghton
- Garment & Linen Services, Houghton
- Gas Companies, Houghton
- Gas Station, Houghton - Service & Filling Station
- Gas Tanks Repair, Houghton
- General Business Services, Houghton
- General Merchandise Stores, Houghton
- General Travel Agents & Agencies, Houghton
- Gifts, Cards & Stationery Stores, Houghton
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- Glass & Glass Products, Houghton
- Glass - Auto, Float, Plate, Window & Doors, Houghton
- Golf Courses, Houghton
- Gourmet Restaurants, Houghton
- Government, Houghton
- Graphic Design Services, Houghton - Graphic Designer
- Graphic Designer & Artist Services, Houghton
- Grocery Store Delivery Service, Houghton
- Grocery Stores & Supermarkets, Houghton
- Ground Transportation, Except Passenger, Houghton
- Gun Repair & Services, Houghton
- Guns & Gunsmith Services, Houghton
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