- Games & Hobbies, Okemos
- Garment & Linen Services, Okemos
- Gas Station, Okemos - Service & Filling Station
- Gemologists & Jewelers, Okemos
- General Business Consulting, Okemos
- General Business Services, Okemos
- General Consultants, Okemos
- General Freight Trucking, Okemos - Motor Freight
- General Hardware Stores, Okemos
- General Management Consultants & Services, Okemos
- General Management Consulting Services, Okemos - Management Consultants
- General Merchandise Stores, Okemos
- General Surgeons, Okemos - General Surgery Doctors, Physicians & Surgeons
- General Travel Agents & Agencies, Okemos
- Gift Baskets, Okemos
- Gifts By Type & Occasion, Okemos
- Gifts, Cards & Stationery Stores, Okemos
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- Glass & Glass Products, Okemos
- Glass - Auto, Float, Plate, Window & Doors, Okemos
- Go Kart Tracks, Okemos
- Gold, Silver & Platinum Buyers, Sellers & Dealers, Okemos
- Golf Courses, Okemos
- Golf Driving Ranges, Okemos
- Golf Equipment & Supplies Stores, Okemos - Golf Clubs, Balls, Carts, Bags, Apparel, Shoes & Accessories
- Golf Equipment Repair & Sales, Okemos - Clubs, Carts, Bags & More
- Gourmet Food Stores, Okemos
- Government, Okemos
- Graphic Design Services, Okemos - Graphic Designer
- Graphic Designer & Artist Services, Okemos
- Grocery Stores & Supermarkets, Okemos
- Ground Transportation, Except Passenger, Okemos
- Gun Repair & Services, Okemos
- Guns & Gunsmith Services, Okemos
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