- Games & Hobbies, Fairfield
- Garage Building & Repair, Fairfield - Carports - Garage Builders
- Garage Door Repair, Fairfield
- Garage Doors & Door Operating Devices, Fairfield
- Garage Doors & Gates, Fairfield - Stores & Companies - Install & Repair Services
- Garage, Door & Window Products, Fairfield
- Garbage & Rubbish Removal, Fairfield
- Garden & Lawn Sprinkler Repair, Installation & Service, Fairfield
- Garment & Linen Services, Fairfield
- Gas Companies, Fairfield
- Gas Station, Fairfield - Service & Filling Station
- Gastroenterologists, Fairfield - GI Doctors, Physicians & Surgeons (Gastroenterology)
- Gemologists & Jewelers, Fairfield
- General Business Consulting, Fairfield
- General Business Services, Fairfield
- General Consultants, Fairfield
- General Freight Trucking, Fairfield - Motor Freight
- General Hardware Stores, Fairfield
- General Management Consulting Services, Fairfield - Management Consultants
- General Merchandise Stores, Fairfield
- General Surgeons, Fairfield - General Surgery Doctors, Physicians & Surgeons
- General Travel Agents & Agencies, Fairfield
- Generators, Compressors, Pumps, Motors & Fans, Fairfield
- Gift Baskets, Fairfield
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- Gift Shops, Fairfield - Gift, Novelty & Souvenir Stores
- Gifts By Type & Occasion, Fairfield
- Gifts, Cards & Stationery Stores, Fairfield
- Glass & Glass Products, Fairfield
- Glass - Auto, Float, Plate, Window & Doors, Fairfield
- Glass - Beveled, Carved, Etched & Ornamental, Fairfield
- Glass Giftware, Fairfield
- Glass Plate Windows, Fairfield
- Gold, Silver & Platinum Buyers, Sellers & Dealers, Fairfield
- Golf Courses, Fairfield
- Golf Equipment & Supplies Stores, Fairfield - Golf Clubs, Balls, Carts, Bags, Apparel, Shoes & Accessories
- Golf Lessons & Instruction, Fairfield
- Gourmet Restaurants, Fairfield
- Government, Fairfield
- Granite, Fairfield
- Graphic Design Services, Fairfield - Graphic Designer
- Graphic Designer & Artist Services, Fairfield
- Greeting Card Stores, Fairfield
- Grocery Store Delivery Service, Fairfield
- Grocery Stores & Supermarkets, Fairfield
- Ground Transportation, Except Passenger, Fairfield
- Group Homes, Fairfield
- Gutters & Downspout Cleaning & Repairing, Fairfield
- Gymnastics Schools, Fairfield
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