- Sand Gravel & Aggregate, Henderson
- Sandblasting, Henderson - General Contractors
- Sandwich Shop Restaurants, Henderson
- Scientific & Laboratory Equipment & Instruments, Henderson
- Scrap & Waste Materials, Henderson
- Secondary Schools, Henderson
- Septic Tank Pumping & Cleaning, Henderson - Septic Systems
- Service Establishment Supplies & Equipment, Henderson
- Sewer & Drain Cleaning & Repair, Henderson - Drain Cleaner & Installation Services
- Sewer Cleaning Equipment & Supplies, Henderson - Sewer Builders
- Shopping & Shopping Services, Henderson
- Signs, Henderson
- Social Services & Welfare, Henderson
- Sod & Sodding Service, Henderson
- Sod Farms, Henderson
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- Special Events & Party Supply Rental, Henderson
- Specialty Animal Services, Henderson
- Specialty Stores, Henderson
- Sporting Goods Equipment Rental, Henderson
- Sports Promoters & Managers, Henderson
- Sports Promotions & Special Events, Henderson
- Staffing & Support Services, Henderson
- Steel & Metal Goods, Henderson - Steel Distributors
- Steel Erection Contractors, Henderson - Steel Erectors
- Steel Manufacturers, Henderson
- Surgical & Medical Instruments Manufacturers, Henderson
- Sweepers & Scrubbers Industrial, Henderson - Sweeping Service
- Sweepers & Scrubbers Power, Henderson
- Synthetic & Blended Fabrics Manufacturers, Henderson
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