| Business | Phone |
| Eastern Mirror Glass 800 Chartiers Ave, Pittsburgh 15220 | (412) 922-9449 |
| Kopp Glass Inc 2108 Palmer St, Pittsburgh 15218 | (412) 271-0190 |
| Ppg Industries Inc Guys Run Rd, Pittsburgh 15238 | (412) 820-8500 |
| West Liberty Glass Inc 1917 W Liberty Ave, Pittsburgh 15226 | (412) 344-5151 |