- Games & Hobbies, Columbia Falls
- Garment & Linen Services, Columbia Falls
- Gas Station, Columbia Falls - Service & Filling Station
- General Business Consulting, Columbia Falls
- General Business Services, Columbia Falls
- General Consultants, Columbia Falls
- General Freight Trucking, Columbia Falls - Motor Freight
- General Hardware Stores, Columbia Falls
- General Merchandise Stores, Columbia Falls
- Gifts By Type & Occasion, Columbia Falls
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- Gifts, Cards & Stationery Stores, Columbia Falls
- Glass & Glass Products, Columbia Falls
- Glass & Glazing Contractors, Columbia Falls
- Glass - Auto, Float, Plate, Window & Doors, Columbia Falls
- Glass Tinting & Coating, Columbia Falls - Home - Car Window Tinting
- Government, Columbia Falls
- Grocery Stores & Supermarkets, Columbia Falls
- Ground Transportation, Except Passenger, Columbia Falls
- Gun Repair & Services, Columbia Falls
- Guns & Gunsmith Services, Columbia Falls
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