- Gambling & Lottery Services, Prineville
- Garage Doors & Door Operating Devices, Prineville
- Garage Doors & Gates, Prineville - Stores & Companies - Install & Repair Services
- Garage, Door & Window Products, Prineville
- Garment & Linen Services, Prineville
- Gas Companies, Prineville
- Gas Station, Prineville - Service & Filling Station
- Gasoline, Prineville
- Gate & Fence Repair, Prineville
- General Business Consulting, Prineville
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- General Business Services, Prineville
- General Consultants, Prineville
- General Hardware Stores, Prineville
- General Merchandise Stores, Prineville
- Glass & Glass Products, Prineville
- Glass - Auto, Float, Plate, Window & Doors, Prineville
- Golf Courses, Prineville
- Government, Prineville
- Grocery Stores & Supermarkets, Prineville
- Ground Transportation, Except Passenger, Prineville
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