- Sales Promotion Service, Pearisburg
- Sandwich Shop Restaurants, Pearisburg
- Savings Banks, Pearisburg
- Search & Rescue, Pearisburg
- Security & Surveillance System & Equipment, Pearisburg
- Security Brokers & Dealers, Pearisburg
- Security Services, Pearisburg
- Shirts & T-Shirts, Pearisburg
- Shoe Dyers, Pearisburg
- Shoe Repair Shops, Pearisburg
- Shopping & Shopping Services, Pearisburg
- Signs, Pearisburg
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- Social Services & Welfare, Pearisburg
- Societies & Foundation Associations, Pearisburg
- Sororities, Pearisburg
- Special Education & Care, Pearisburg
- Specialty Stores, Pearisburg
- Sporting Goods Stores, Pearisburg
- Staffing & Support Services, Pearisburg
- State Government, Pearisburg
- Stock & Bond Brokers & Dealers, Pearisburg
- Stocks & Bond Brokers, Pearisburg
- Submarine Sandwich Restaurants, Pearisburg
- Surveyor Services, Pearisburg - Surveying Service
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