- Safe & Vault, Vaughan
- Safety Equipment & Supplies, Vaughan
- Sales & Marketing Consultant, Vaughan
- Sandwich Shop Restaurants, Vaughan
- Sanitation Consultants, Vaughan
- Sawmill, Paper & Woodworking Supplies, Machinery & Equipment, Vaughan
- Scientific & Laboratory Equipment & Instruments, Vaughan
- Screen Printing, Vaughan
- Seafood Restaurants, Vaughan
- Secondary Schools, Vaughan
- Security & Surveillance System & Equipment, Vaughan
- Security Alarm Systems - Home & Business, Vaughan
- Security Brokers & Dealers, Vaughan
- Security Control Systems & Monitoring, Vaughan - Polygraph, Lie Detector, CCTV, Fire Sensor Equipment, Etc
- Security Guard & Patrol Service, Vaughan - Bodyguard, Guard Dogs, Etc
- Security Services, Vaughan
- Sewer Construction Contractors, Vaughan - Sewer Line, Pipe Installation & Repair Services
- Sheet Metal Contractors, Vaughan - Sheet Metal Fabrication
- Sheet Metal Fabricators & Ductwork Contractors, Vaughan
- Shoe Repair Shops, Vaughan
- Shoe Store - More, Vaughan
- Shoe Stores, Vaughan - Mens, Womens & Kids Shoes
- Shopping & Shopping Services, Vaughan
- Short Term Business Credit Institutions, Vaughan
- Shutters - Interior & Exterior, Vaughan - Wood, Vinyl, Window, Plantation Shutters, etc
- Siding Materials, Vaughan
- Sign Equipment & Supplies, Vaughan
- Signs, Vaughan
- Skating Rink & Hockey Operation Services, Vaughan
- Skin Care & Cosmetology Salons, Vaughan
- Skin Care Products & Treatments, Vaughan
- Small Appliances, Vaughan
- Snacks & Desserts, Vaughan
- Social Services & Welfare, Vaughan
- Societies & Foundation Associations, Vaughan
- Solar Energy Companies - Contractors, Vaughan - Solar Panel Installation - Solar Power Systems
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- Solar Equipment, Vaughan
- Solar Heating Contractors, Vaughan - Solar Water Heaters
- Space Planning, Vaughan
- Special Dies Tools Jigs & Fixtures Manufacturers, Vaughan
- Special Education & Care, Vaughan
- Special Events Photographers, Vaughan
- Special Interest Schools Or Instruction, Vaughan
- Speciality Food Stores, Vaughan
- Specialty Goods Storage, Vaughan
- Specialty Stores, Vaughan
- Speech & Hearing Specialists, Vaughan
- Speech Pathologists, Vaughan - Speech & Language Therapy
- Sporting Goods Stores, Vaughan
- Sports & Recreational Services, Vaughan
- Sports Promoters & Managers, Vaughan
- Sports Promotions & Special Events, Vaughan
- Sportswear Clothing Stores, Vaughan - Sports Clothes
- Staffing & Support Services, Vaughan
- Steak House Restaurants, Vaughan
- Steel & Metal Goods, Vaughan - Steel Distributors
- Steel Erection Contractors, Vaughan - Steel Erectors
- Steel Manufacturers, Vaughan
- Stereo, Audio & Video Equipment Dealers & Stores, Vaughan
- Stocks & Bond Brokers, Vaughan
- Stone And Glass Products, Vaughan
- Stoves & Furnace Equipment, Vaughan - Fittings & Repair Parts
- Street Cleaning Services, Vaughan
- Stucco Siding Contractors, Vaughan - Stucco Repair & Installation
- Stucco Siding, Granite & Grouting Contractors, Vaughan
- Stucco Stone, Vaughan
- Submarine Sandwich Restaurants, Vaughan
- Surveyor Services, Vaughan - Surveying Service
- Sushi Restaurants, Vaughan
- Swimming Pool, Sauna & Spa Contractors, Vaughan
- Swimming Pools Contractors, Vaughan - Install Inground - Above Ground Pools
- Synagogues & Temples, Vaughan
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