- Sand Gravel & Aggregate, Hagersville
- Sandblasting, Hagersville - General Contractors
- Sandwich Shop Restaurants, Hagersville
- Scrap & Waste Materials, Hagersville
- Screen Printing, Hagersville
- Secondary Schools, Hagersville
- Security Services, Hagersville
- Service Establishment Supplies & Equipment, Hagersville
- Sewer Construction Contractors, Hagersville - Sewer Line, Pipe Installation & Repair Services
- Shopping & Shopping Services, Hagersville
- Siding Contractors, Hagersville - Vinyl Siding, Wood, Metal & Aluminum Siding Contractors - Installation & Repair
- Signs, Hagersville
- Skating Rink & Hockey Operation Services, Hagersville
- Skating Supplies, Hagersville - Ice, Inline, Speed, Figure & Roller Skates
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- Skin Care & Cosmetology Salons, Hagersville
- Skin Care Products & Treatments, Hagersville
- Sleep Disorders Treatment & Information Centers, Hagersville
- Social Services & Welfare, Hagersville
- Societies & Foundation Associations, Hagersville
- Special Education & Care, Hagersville
- Speciality Food Stores, Hagersville
- Specialty Stores, Hagersville
- Sporting Goods Stores, Hagersville
- Stadiums, Arenas, Coliseums & Athletic Fields, Hagersville
- State Government, Hagersville
- Stoves & Furnace Equipment, Hagersville - Fittings & Repair Parts
- Submarine Sandwich Restaurants, Hagersville
- Substance Abuse Outpatient Clinics, Hagersville
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