- Games & Hobbies, South Elgin
- Garage Door Repair, South Elgin
- Garage Doors & Door Operating Devices, South Elgin
- Garage Doors & Gates, South Elgin - Stores & Companies - Install & Repair Services
- Garage, Door & Window Products, South Elgin
- Garment & Linen Services, South Elgin
- Gas Station, South Elgin - Service & Filling Station
- General Business Services, South Elgin
- General Freight Trucking, South Elgin - Motor Freight
- General Hardware Stores, South Elgin
- General Merchandise Stores, South Elgin
- General Travel Agents & Agencies, South Elgin
- Generators, Compressors, Pumps, Motors & Fans, South Elgin
- Gift Shops, South Elgin - Gift, Novelty & Souvenir Stores
- Gifts By Type & Occasion, South Elgin
- Gifts, Cards & Stationery Stores, South Elgin
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- Glass & Glass Products, South Elgin
- Glass - Auto, Float, Plate, Window & Doors, South Elgin
- Glass, Plastic & Rubber Working Machinery, South Elgin
- Golf Equipment & Supplies Stores, South Elgin - Golf Clubs, Balls, Carts, Bags, Apparel, Shoes & Accessories
- Gourmet Restaurants, South Elgin
- Government, South Elgin
- Granite, South Elgin
- Graphic Design Services, South Elgin - Graphic Designer
- Graphic Designer & Artist Services, South Elgin
- Greek Restaurants, South Elgin
- Greeting Card Stores, South Elgin
- Grinding Services, South Elgin
- Grocery Stores & Supermarkets, South Elgin
- Ground Transportation, Except Passenger, South Elgin
- Gun Repair & Services, South Elgin
- Guns & Gunsmith Services, South Elgin
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