- Games & Hobbies, Ellisville
- Garage, Door & Window Products, Ellisville
- Garden & Lawn Equipment & Supplies Rental & Leasing, Ellisville
- Garment & Linen Services, Ellisville
- Gas Station, Ellisville - Service & Filling Station
- General Business Consulting, Ellisville
- General Business Services, Ellisville
- General Consultants, Ellisville
- General Hardware Stores, Ellisville
- General Management Consulting Services, Ellisville - Management Consultants
- General Merchandise Stores, Ellisville
- General Travel Agents & Agencies, Ellisville
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- Glass & Glass Products, Ellisville
- Glass & Glazing Contractors, Ellisville
- Glass - Auto, Float, Plate, Window & Doors, Ellisville
- Glass Tinting & Coating, Ellisville - Home - Car Window Tinting
- Government, Ellisville
- Granite, Ellisville
- Graphic Designer & Artist Services, Ellisville
- Grocery Stores & Supermarkets, Ellisville
- Ground Transportation, Except Passenger, Ellisville
- Gun Repair & Services, Ellisville
- Guns & Gunsmith Services, Ellisville
- Gymnastics Schools, Ellisville
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