- Sandwich Shop Restaurants, Vicksburg
- Secondary Schools, Vicksburg
- Security Brokers & Dealers, Vicksburg
- Septic Tank Pumping & Cleaning, Vicksburg - Septic Systems
- Sewer & Drain Cleaning & Repair, Vicksburg - Drain Cleaner & Installation Services
- Sheet Metal Contractors, Vicksburg - Sheet Metal Fabrication
- Sheet Metal Fabricators & Ductwork Contractors, Vicksburg
- Shoe Stores, Vicksburg - Mens, Womens & Kids Shoes
- Shooting & Target Ranges, Vicksburg
- Shopping & Shopping Services, Vicksburg
- Siding Contractors, Vicksburg - Vinyl Siding, Wood, Metal & Aluminum Siding Contractors - Installation & Repair
- Skin Care & Cosmetology Salons, Vicksburg
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- Skin Care Products & Treatments, Vicksburg
- Snacks & Desserts, Vicksburg
- Social Services & Welfare, Vicksburg
- Specialty Animal Services, Vicksburg
- Specialty Stores, Vicksburg
- Sports Photographers, Vicksburg
- Staffing & Support Services, Vicksburg
- Steel Manufacturers, Vicksburg
- Stocks & Bond Brokers, Vicksburg
- Stone, Vicksburg
- Submarine Sandwich Restaurants, Vicksburg
- Surveyor Services, Vicksburg - Surveying Service
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