- Safety Equipment & Supplies, Nelsonville
- Sand Gravel & Aggregate, Nelsonville
- Sandwich Shop Restaurants, Nelsonville
- Satellite & Cable TV Equipment & Systems, Nelsonville
- Satellite Dish Antennas & Equipment Dealers, Nelsonville
- Satellite TV Service, Nelsonville
- Secondary Schools, Nelsonville
- Security Brokers & Dealers, Nelsonville
- Sewer & Drain Cleaning & Repair, Nelsonville - Drain Cleaner & Installation Services
- Sewing Machines, Equipment & Supplies, Nelsonville
- Shoe Stores, Nelsonville - Mens, Womens & Kids Shoes
- Shopping & Shopping Services, Nelsonville
- Skating Rink & Hockey Operation Services, Nelsonville
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- Sleep Disorders Treatment & Information Centers, Nelsonville
- Small Appliances, Nelsonville
- Snacks & Desserts, Nelsonville
- Snow Removal Services, Nelsonville - Snow Plow Service
- Social Services & Welfare, Nelsonville
- Societies & Foundation Associations, Nelsonville
- Sororities, Nelsonville
- Specialty Stores, Nelsonville
- State Government, Nelsonville
- Swimming Pool, Sauna & Spa Contractors, Nelsonville
- Swimming Pools Contractors, Nelsonville - Install Inground - Above Ground Pools
- Swimming Pools Supplies, Equipment & Accessories, Nelsonville
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