- Sand Gravel & Aggregate, Bellville
- Sandwich Shop Restaurants, Bellville
- Savings Banks, Bellville
- Security & Surveillance System & Equipment, Bellville
- Security Brokers & Dealers, Bellville
- Security Services, Bellville
- Septic Tank Installation & Repair, Bellville - Septic Systems
- Septic Tank Pumping & Cleaning, Bellville - Septic Systems
- Septic Tanks & Septic Systems Contractors, Bellville - Installation, Repair, Service, Cleaning & Pumping Septic Tanks
- Sheriff's Department, Bellville
- Shoe Repair Shops, Bellville
- Shoe Stores, Bellville - Mens, Womens & Kids Shoes
- Shopping & Shopping Services, Bellville
- Smoked Meat Restaurants, Bellville
- Snack Foods, Bellville
- Snacks & Desserts, Bellville
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- Social Services & Welfare, Bellville
- Societies & Foundation Associations, Bellville
- Special Interest Schools Or Instruction, Bellville
- Speciality Food Stores, Bellville
- Specialty Animal Services, Bellville
- Specialty Communication Companies & Services, Bellville
- Specialty Stores, Bellville
- Sprinkler System Contractors, Bellville - Garden & Lawn Sprinkler System Installation & Repair
- Staffing & Support Services, Bellville
- State Government, Bellville
- Steak House Restaurants, Bellville
- Steel & Metal Goods, Bellville - Steel Distributors
- Stocks & Bond Brokers, Bellville
- Structural Engineer, Bellville
- Surveyor Services, Bellville - Surveying Service
- Surveyors, Bellville
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