- Secondary Schools, New Hartford
- Security Brokers & Dealers, New Hartford
- Senior Citizens Service & Health Organizations, New Hartford
- Sewing Machine Repair & Service, New Hartford
- Shopping & Shopping Services, New Hartford
- Ski Centers, New Hartford
- Ski Resorts, New Hartford
- Social Services & Welfare, New Hartford
- Specialty Animal Services, New Hartford
- Specialty Stores, New Hartford
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- Sporting Goods Stores, New Hartford
- Sports & Recreational Services, New Hartford
- Springs Coil Flat - Industrial Supply & Equipment, New Hartford
- Springs Coil Flat Etcetera Manufacturers, New Hartford
- State Government, New Hartford
- Steel Springs Manufacturers Except Wire, New Hartford
- Stock & Bond Brokers & Dealers, New Hartford
- Stocks & Bond Brokers, New Hartford
- Surveyor Services, New Hartford - Surveying Service
- Surveyors, New Hartford
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