- Jed Heating & Cooling
- Jefferson Ambulance
- Jefferson Ambulance
- Jefferson Borough
- Jefferson Borough General Adm
- Jefferson Cardiology Assn
- Jefferson Dialysis Ctr
- Jefferson Elementary School
- Jefferson Federation-Teachers
- Jefferson Health Svc
- Jefferson Hills Area Ambulance
- Jefferson Hills Lawn & Equip
- Jefferson Hills Library
- Jefferson Hills Manor Nurse Hm
- Jefferson Hills Motel
- Jefferson Hills Real Estate
- Jefferson Hills Surgical Assoc
- Jefferson Hospital Central
- Jefferson Hospital Speech
- Jefferson MRI
- Jefferson Police Dept
- Jefferson Regional Medical Ctr
- Jefferson Regional Pet Scnnng
- Jefferson United Methodist Chr
- Jefferson United Presbyterian
- Jefferson Vascular Laboratory
- Jefferson Veterinary Hospital
- Jefferson Volunteer Fire Hall
- Jelly's Garage Door Inc
