- Games & Hobbies, Columbus
- Garbage & Rubbish Removal, Columbus
- Garment & Linen Services, Columbus
- Garment Pressing & Cleaners Agents, Columbus - Laundries & Dry Cleaners
- Gas Station, Columbus - Service & Filling Station
- Gate & Fence Repair, Columbus
- General Business Consulting, Columbus
- General Business Services, Columbus
- General Consultants, Columbus
- General Hardware Stores, Columbus
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- General Merchandise Stores, Columbus
- Gift Shops, Columbus - Gift, Novelty & Souvenir Stores
- Gifts, Cards & Stationery Stores, Columbus
- Government, Columbus
- Grain Elevators, Columbus
- Graphic Design Services, Columbus - Graphic Designer
- Graphic Designer & Artist Services, Columbus
- Grocery Stores & Supermarkets, Columbus
- Ground Transportation, Except Passenger, Columbus
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