- Safety Equipment & Supplies, Sanford
- Sales & Marketing Consultant, Sanford
- Salvage Yards, Sanford - Auto, Motorcycle, Boat, Trucks, etc
- Sand Gravel & Aggregate, Sanford
- Sandwich Shop Restaurants, Sanford
- Satellite Communication Downlinking & Uplinking, Sanford
- Satellite Dish Antennas & Equipment Dealers, Sanford
- Savings Banks, Sanford
- Sawmill, Paper & Woodworking Supplies, Machinery & Equipment, Sanford
- Scales Retail, Sanford
- School - Christian, Sanford
- Scrap & Waste Materials, Sanford
- Screen Printing, Sanford
- Seafood Restaurants, Sanford
- Secondary Schools, Sanford
- Security & Surveillance System & Equipment, Sanford
- Security Alarm Systems - Home & Business, Sanford
- Security Brokers & Dealers, Sanford
- Security Control Systems & Monitoring, Sanford - Polygraph, Lie Detector, CCTV, Fire Sensor Equipment, Etc
- Security Guard & Patrol Service, Sanford - Bodyguard, Guard Dogs, Etc
- Security Investigative Services, Sanford
- Security Services, Sanford
- Senior Citizen Counseling, Sanford
- Senior Citizens Service & Health Organizations, Sanford
- Septic Tank Installation & Repair, Sanford - Septic Systems
- Septic Tank Pumping & Cleaning, Sanford - Septic Systems
- Septic Tanks & Septic Systems Contractors, Sanford - Installation, Repair, Service, Cleaning & Pumping Septic Tanks
- Septic Tanks & Systems, Sanford - Wholesale, Dealers & Suppliers
- Sewer & Drain Cleaning & Repair, Sanford - Drain Cleaner & Installation Services
- Sewing Machine Repair & Service, Sanford
- Sheriff's Department, Sanford
- Ship & Boat Building & Repairing, Sanford
- Shipping Service, Sanford
- Shoe Repair Shops, Sanford
- Shoe Shining, Sanford
- Shoe Stores, Sanford - Mens, Womens & Kids Shoes
- Shooting & Target Ranges, Sanford
- Shopping & Shopping Services, Sanford
- Siding Contractors, Sanford - Vinyl Siding, Wood, Metal & Aluminum Siding Contractors - Installation & Repair
- Signs, Sanford
- Silk Screen Printing, Sanford
- Silkscreen Printing, Sanford
- Skin Care & Cosmetology Salons, Sanford
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- Skin Care Products & Treatments, Sanford
- Sleep Doctors, Sanford - Specialists, Physicians & Surgeons (Sleep Medicine)
- Snacks & Desserts, Sanford
- Social Security And Disability Attorneys & Lawyers, Sanford
- Social Security Counselors & Representatives, Sanford
- Social Service Organizations Volunteer Services, Sanford
- Social Services & Welfare, Sanford
- Social Workers & Services, Sanford
- Societies & Foundation Associations, Sanford
- Sod & Sodding Service, Sanford
- Southern Style Restaurants, Sanford
- Spanish Speaking Churches, Sanford
- Special Interest Schools Or Instruction, Sanford
- Specialty Animal Services, Sanford
- Specialty Communication Companies & Services, Sanford
- Specialty Stores, Sanford
- Speech & Hearing Specialists, Sanford
- Speech Pathologists, Sanford - Speech & Language Therapy
- Sporting Goods Stores, Sanford
- Sports & Recreational Services, Sanford
- Sports Bars & Lounges, Sanford
- Staffing & Support Services, Sanford
- State Government, Sanford
- Steak House Restaurants, Sanford
- Steel & Metal Goods, Sanford - Steel Distributors
- Steel Manufacturers, Sanford
- Steel Mills & Blast Furnaces, Sanford
- Stock & Bond Brokers & Dealers, Sanford
- Stocks & Bond Brokers, Sanford
- Stone, Sanford
- Stone And Glass Products, Sanford
- Store Fixtures & Display Equipment, Sanford
- Store Fronts, Sanford - Storefront
- Submarine Sandwich Restaurants, Sanford
- Substance Abuse Clinics, Sanford - Alcoholism, Addiction & Drug Abuse Treatment Centers
- Suicide Prevention Service & Counseling, Sanford
- Surgical Hospitals, Sanford - Surgical Centers
- Surveyor Services, Sanford - Surveying Service
- Surveyors, Sanford
- Swimming, Sanford
- Swimming Pool, Sauna & Spa Contractors, Sanford
- Swimming Pools Contractors, Sanford - Install Inground - Above Ground Pools
- Swimming Pools Supplies, Equipment & Accessories, Sanford
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