- Second Chance Consultants
- Second Time Around Furniture
- Security Guards Unlimited
- Security Systems
- Selway Termite Co Inc
- Seman Flooring
- Senate Engineering Co
- Senior Citizens Ctr
- Sentinel Security & Invstgtn
- Sepia Interior & Exterior
- Service Management Systems
- Seventh-Day Adventist
- Sewickley Primary Care
- Shapes & Scapes Landscape
- Sharen Mosier
- Sharon Adams Pet Sitting
- Sharp's Furniture Store
- Sharper Image
- Shaw's Jewelers
- Shear Wonders
- Shear Xperience
- Shearecon
- Shearer Heating & Air Cond Co
- Sherman H Siegel
- Sherman Spatz DDS
