| Business | Phone |
| Camrac Co Inc 570 Beatty Rd, Monroeville 15146 | (412) 856-3200 |
| Ground Technology Inc 275 Center Rd, Monroeville 15146 | (412) 856-9440 |
| Hannigan Engineering Assoc 502 Laurel Dr, Monroeville 15146 | (412) 372-3480 |
| Schmiedel Engineers/Surveyors 632 Dahlia Dr, Monroeville 15146 | (412) 372-1195 |