- Games & Hobbies, Dunnville
- Garbage & Rubbish Removal, Dunnville
- Garment & Linen Services, Dunnville
- Gas Station, Dunnville - Service & Filling Station
- General Business Services, Dunnville
- General Management Consulting Services, Dunnville - Management Consultants
- General Merchandise Stores, Dunnville
- General Travel Agents & Agencies, Dunnville
- Generators, Compressors, Pumps, Motors & Fans, Dunnville
- Gift Baskets, Dunnville
- Gift Shops, Dunnville - Gift, Novelty & Souvenir Stores
- Gifts By Type & Occasion, Dunnville
- Gifts, Cards & Stationery Stores, Dunnville
|
- Glass & Glazing Contractors, Dunnville
- Glass Tinting & Coating, Dunnville - Home - Car Window Tinting
- Golf Courses, Dunnville
- Golf Equipment & Supplies Stores, Dunnville - Golf Clubs, Balls, Carts, Bags, Apparel, Shoes & Accessories
- Gospel Church, Dunnville
- Government, Dunnville
- Grain Elevators, Dunnville
- Graphic Design Services, Dunnville - Graphic Designer
- Graphic Designer & Artist Services, Dunnville
- Grocery Stores & Supermarkets, Dunnville
- Ground Transportation, Except Passenger, Dunnville
- Gutter & Flashing Contractors, Dunnville - Metal - Copper Flashing - Gutter Cleaning & Repair Services
|
