- Sand Gravel & Aggregate, Dodgeville
- Sandwich Shop Restaurants, Dodgeville
- Satellite & Cable TV Equipment & Systems, Dodgeville
- Satellite TV Service, Dodgeville
- Savings Banks, Dodgeville
- Secondary Schools, Dodgeville
- Security Brokers & Dealers, Dodgeville
- Senior Citizens Service & Health Organizations, Dodgeville
- Septic Tank Pumping & Cleaning, Dodgeville - Septic Systems
- Septic Tanks & Systems, Dodgeville
- Shopping & Shopping Services, Dodgeville
- Signs, Dodgeville
- Silos & Equipment, Dodgeville
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- Social Services & Welfare, Dodgeville
- Specialty Animal Services, Dodgeville
- Specialty Stores, Dodgeville
- Speech & Hearing Specialists, Dodgeville
- Sporting Goods Stores, Dodgeville
- Sports Medicine, Dodgeville - Doctors, Physicians & Surgeons
- Staffing & Support Services, Dodgeville
- Stamp Collecting & Coin Dealers , Dodgeville
- State Government, Dodgeville
- Stocks & Bond Brokers, Dodgeville
- Stone, Dodgeville
- Stone & Rock Quarry, Dodgeville - Gravel Pit, Shale, Granite, Limestone, Crushed Rock, etc
- Surveyor Services, Dodgeville - Surveying Service
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