- Salvage Yards, Hortonville - Auto, Motorcycle, Boat, Trucks, etc
- Salvage Yards, Junk Yards & Wrecker Service, Hortonville
- Sand Gravel & Aggregate, Hortonville
- Sandwich Shop Restaurants, Hortonville
- Savings & Loan Associations, Hortonville
- Savings Banks, Hortonville
- Scrap & Waste Materials, Hortonville
- Screen Printing, Hortonville
- Secondary Schools, Hortonville
- Security Brokers & Dealers, Hortonville
- Septic Tank Installation & Repair, Hortonville - Septic Systems
- Septic Tank Pumping & Cleaning, Hortonville - Septic Systems
- Septic Tanks & Septic Systems Contractors, Hortonville - Installation, Repair, Service, Cleaning & Pumping Septic Tanks
- Sewer & Drain Cleaning & Repair, Hortonville - Drain Cleaner & Installation Services
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- Shooting & Target Ranges, Hortonville
- Shopping & Shopping Services, Hortonville
- Snow Removal Services, Hortonville - Snow Plow Service
- Social Clubs & Organizations, Hortonville
- Social Services & Welfare, Hortonville
- Specialty Animal Services, Hortonville
- Specialty Stores, Hortonville
- Staples Staplers & Tackers, Hortonville
- Steel Manufacturers, Hortonville
- Steel Mills & Blast Furnaces, Hortonville
- Stocks & Bond Brokers, Hortonville
- Stoves & Furnace Equipment, Hortonville - Fittings & Repair Parts
- Supper Club Restaurants, Hortonville
- Surveyor Services, Hortonville - Surveying Service
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