- SEI Investments Co
- Seiverling Car & Pedal Car
- Senator Noah W Wenger
- Sensenig Electronic Repair
- Sensenig Hardware
- Sensenig Shears
- Sensenig's Repair & Sales
- Service Supply Corp
- Sharon May Beauty Salon
- Sharp Shopper
- Sheetz
- Sheldon's Gallery & Frame Shop
- Sherk Messenger Svc
- Sherri Gilbert
- Sherwin-Williams Paints
