| Business | Phone |
| Chimney Consultants Inc 4284 William Flynn Hwy # 204, Allison Park 15101 | (412) 487-2936 |
| Joesph F Lagnese Consulting 3066 Woodland Rd, Allison Park 15101 | (412) 487-8980 |
| Noker Engineering Inc 4361 William Flynn Hwy, Allison Park 15101 | (412) 487-2156 |
| Pioneer Technical Svc 2124 Carriage Hill Rd, Allison Park 15101 | (412) 367-1330 |
| Pittsburgh Firmware 4068 Mount Royal Blvd, Allison Park 15101 | (412) 487-6640 |