| Business | Phone |
| Kozi Media Design 201 Penn Center Blvd # 400, Pittsburgh 15235 | (724) 334-4695 |
| Let's Make Music 810 S Aiken Ave, Pittsburgh 15232 | (412) 687-0900 |
| Tasso G Spanos Audio Consultant 1002 Arlington Ave, Pittsburgh 15203 | (412) 431-7305 |
| Progressive Electronics 2880 W Liberty Ave, Pittsburgh 15216 | (412) 571-2202 |