- Sawmill & Planing Mills, Isle
- Sawmill Supplies & Equipment Repair, Isle
- Secondary Schools, Isle
- Septic Tank Installation & Repair, Isle - Septic Systems
- Septic Tank Pumping & Cleaning, Isle - Septic Systems
- Septic Tanks & Septic Systems Contractors, Isle - Installation, Repair, Service, Cleaning & Pumping Septic Tanks
- Sewing & Yarn Stores & Supplies, Isle
- Shopping & Shopping Services, Isle
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- Snowmobile Dealers, Isle - Parts, Gear, Clothing & Accessories
- Social Services & Welfare, Isle
- Specialty Stores, Isle
- Sporting Goods Stores, Isle
- Steel Manufacturers, Isle
- Stone & Rock Quarry, Isle - Gravel Pit, Shale, Granite, Limestone, Crushed Rock, etc
- Supper Club Restaurants, Isle
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