- Game & Wildlife Consultants, Washington
- Games & Hobbies, Washington
- Garage, Door & Window Products, Washington
- Garbage & Rubbish Removal, Washington
- Garment & Linen Services, Washington
- Gas Companies, Washington
- Gas Engine, Washington
- Gas Station, Washington - Service & Filling Station
- Gastroenterologists, Washington - GI Doctors, Physicians & Surgeons (Gastroenterology)
- General Business Consulting, Washington
- General Business Services, Washington
- General Consultants, Washington
- General Freight Trucking, Washington - Motor Freight
- General Hardware Stores, Washington
- General Management Consulting Services, Washington - Management Consultants
- General Merchandise Stores, Washington
- General Surgeons, Washington - General Surgery Doctors, Physicians & Surgeons
- General Travel Agents & Agencies, Washington
- Gift Baskets, Washington
- Gift Shops, Washington - Gift, Novelty & Souvenir Stores
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- Gifts By Type & Occasion, Washington
- Gifts, Cards & Stationery Stores, Washington
- Glass & Glass Products, Washington
- Glass & Glazing Contractors, Washington
- Glass - Auto, Float, Plate, Window & Doors, Washington
- Glass Bending Beveling Drilling Grinding Etcetera, Washington
- Glass Stained & Leaded, Washington
- Golf Cars & Carts, Washington
- Golf Courses, Washington
- Government, Washington
- Government Contract & Relations Consultants, Washington
- Government Information & Offices Miscellaneous, Washington
- Grading Contractors, Washington - Excavating - Excavation Companies
- Graphic Design Services, Washington - Graphic Designer
- Graphic Designer & Artist Services, Washington
- Grocery Stores & Supermarkets, Washington
- Ground Transportation, Except Passenger, Washington
- Guest Houses & Ranches, Washington
- Gun Repair & Services, Washington
- Guns & Gunsmith Services, Washington
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