- Joan's Beauty Salon
- Joe Fisher's Svc Garage
- Joe Goss Karate School
- John Kim Muchesko Photography
- Johnstown Cabinet Works
- Johnstown Concert Ballet
- Johnstown Day Care Ctr
- Johnstown Middle School
- Johnstown Monument Co
- Johnstown Rifle & Pistol Inc
- Johnstown School District Supt
- Johnstown Welding & Fab
- Johnstown Wire Technologies
