| Business | Phone |
| Albert Curry & Co 535 Smithfield St # 616, Pittsburgh 15222 | (412) 281-7386 |
| Ampco-Pittsburgh Corp 600 Grant St # 4600, Pittsburgh 15219 | (412) 456-4400 |
| Liquitec Inc 3401 Provost Rd, Pittsburgh 15227 | (412) 882-2296 |
| Tippins Inc 435 Butler St, Pittsburgh 15223 | (412) 781-7600 |
| Quality Rolls 1101 Muriel St, Pittsburgh 15203 | (412) 431-8250 |