- Games & Hobbies, Carlinville
- Garage, Door & Window Products, Carlinville
- Garbage & Rubbish Removal, Carlinville
- Gas Station, Carlinville - Service & Filling Station
- General Business Consulting, Carlinville
- General Business Services, Carlinville
- General Consultants, Carlinville
- General Freight Trucking, Carlinville - Motor Freight
- General Hardware Stores, Carlinville
- General Merchandise Stores, Carlinville
- General Surgeons, Carlinville - General Surgery Doctors, Physicians & Surgeons
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- Geothermal Heating & Cooling Equipment, Systems & Supplies, Carlinville
- Gift Shops, Carlinville - Gift, Novelty & Souvenir Stores
- Gifts, Cards & Stationery Stores, Carlinville
- Glass & Glass Products, Carlinville
- Glass - Auto, Float, Plate, Window & Doors, Carlinville
- Government, Carlinville
- Grain Elevators, Carlinville
- Grocery Stores & Supermarkets, Carlinville
- Ground Transportation, Except Passenger, Carlinville
- Grout Sealing & Cleaning, Carlinville
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