- Safety & Security Systems & Consultants, Norfolk
- Secondary Schools, Norfolk
- Security Alarm Systems - Home & Business, Norfolk
- Security Consultants, Norfolk
- Security Control Systems & Monitoring, Norfolk - Polygraph, Lie Detector, CCTV, Fire Sensor Equipment, Etc
- Security Guard & Patrol Service, Norfolk - Bodyguard, Guard Dogs, Etc
- Security Investigative Services, Norfolk
- Security Services, Norfolk
- Septic Tank Pumping & Cleaning, Norfolk - Septic Systems
- Septic Tanks & Systems, Norfolk - Wholesale, Dealers & Suppliers
- Shopping & Shopping Services, Norfolk
- Skating Rink & Hockey Operation Services, Norfolk
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- Small Appliances, Norfolk
- Social Services & Welfare, Norfolk
- Sod & Sodding Service, Norfolk
- Special Events & Party Supply Rental, Norfolk
- Speciality Food Stores, Norfolk
- Specialty Stores, Norfolk
- Sporting Goods Equipment Rental, Norfolk
- Sporting Goods Stores, Norfolk
- Sprinkler System Contractors, Norfolk - Garden & Lawn Sprinkler System Installation & Repair
- State Government, Norfolk
- Surveyor Services, Norfolk - Surveying Service
- Swimming Pools Repair, Service, Supplies, Sale & Installation, Norfolk
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