- Garbage & Rubbish Removal, Jacksonville
- Garment & Linen Services, Jacksonville
- Gas Companies, Jacksonville
- Gas Equipment Industrial, Jacksonville
- Gas Pipelines, Jacksonville
- Gas Piping Contractors, Jacksonville - Gas Pipe Installation & Repair Service
- Gas Station, Jacksonville - Service & Filling Station
- Gasoline, Jacksonville
- General Business Consulting, Jacksonville
- General Business Services, Jacksonville
- General Consultants, Jacksonville
- General Freight Trucking, Jacksonville - Motor Freight
- General Management Consulting Services, Jacksonville - Management Consultants
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- General Merchandise Stores, Jacksonville
- General Surgeons, Jacksonville - General Surgery Doctors, Physicians & Surgeons
- General Travel Agents & Agencies, Jacksonville
- Gifts, Cards & Stationery Stores, Jacksonville
- Glass & Glass Products, Jacksonville
- Glass - Auto, Float, Plate, Window & Doors, Jacksonville
- Golf Clubs Private, Jacksonville
- Government, Jacksonville
- Graphic Design Services, Jacksonville - Graphic Designer
- Graphic Designer & Artist Services, Jacksonville
- Grocery Stores & Supermarkets, Jacksonville
- Ground Transportation, Except Passenger, Jacksonville
- Guide & Directory Advertising Services, Jacksonville
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