- Scrap & Waste Materials, Dalhousie
- Secondary Schools, Dalhousie
- Security Guard & Patrol Service, Dalhousie - Bodyguard, Guard Dogs, Etc
- Security Investigative Services, Dalhousie
- Security Services, Dalhousie
- Senior Citizens Centers & Meals, Dalhousie
- Septic Tank Pumping & Cleaning, Dalhousie - Septic Systems
- Sheet Metal Contractors, Dalhousie - Sheet Metal Fabrication
- Sheet Metal Fabricators & Ductwork Contractors, Dalhousie
- Shoe Repair Shops, Dalhousie
- Shopping & Shopping Services, Dalhousie
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- Snow Removal Services, Dalhousie - Snow Plow Service
- Social Services & Welfare, Dalhousie
- Societies & Foundation Associations, Dalhousie
- Special Events Photographers, Dalhousie
- Specialty Stores, Dalhousie
- Sporting Goods Stores, Dalhousie
- State Government, Dalhousie
- Steamship Companies & Agencies, Dalhousie
- Steel Manufacturers, Dalhousie
- Stoves & Furnace Equipment, Dalhousie - Fittings & Repair Parts
- Swimming Pools, Dalhousie
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