- Games & Hobbies, Sylvan Lake
- Garden & Lawn Sprinkler Repair, Installation & Service, Sylvan Lake
- Garment & Linen Services, Sylvan Lake
- Gas Station, Sylvan Lake - Service & Filling Station
- General Business Consulting, Sylvan Lake
- General Business Services, Sylvan Lake
- General Consultants, Sylvan Lake
- General Management Consulting Services, Sylvan Lake - Management Consultants
- General Merchandise Stores, Sylvan Lake
- General Travel Agents & Agencies, Sylvan Lake
- Generators, Compressors, Pumps, Motors & Fans, Sylvan Lake
- Gift Shops, Sylvan Lake - Gift, Novelty & Souvenir Stores
- Gifts, Cards & Stationery Stores, Sylvan Lake
- Glass & Glass Products, Sylvan Lake
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- Glass & Glazing Contractors, Sylvan Lake
- Glass - Auto, Float, Plate, Window & Doors, Sylvan Lake
- Glass Tinting & Coating, Sylvan Lake - Home - Car Window Tinting
- Golf Courses, Sylvan Lake
- Golf Driving Ranges, Sylvan Lake
- Goodyear Tires, Sylvan Lake - Dealers
- Gospel Church, Sylvan Lake
- Government, Sylvan Lake
- Graphic Designer & Artist Services, Sylvan Lake
- Grocery Stores & Supermarkets, Sylvan Lake
- Ground Transportation, Except Passenger, Sylvan Lake
- Guide & Directory Advertising Services, Sylvan Lake
- Gutter & Flashing Contractors, Sylvan Lake - Metal - Copper Flashing - Gutter Cleaning & Repair Services
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