| Business | Phone |
| Advanced Engineering Svc 318 Holiday Dr # 18, Pittsburgh 15237 | (412) 367-7990 |
| Atlantic Engineering Svc 650 Smithfield St # 1200, Pittsburgh 15222 | (412) 338-9000 |
| Conway Engineering 239 4th Ave, Pittsburgh 15222 | (412) 765-0988 |
| Farris Structural 1471 Jefferson Heights Rd, Pittsburgh 15235 | (412) 829-1250 |
| Hamel Engineering Sciences Inc 605 Mcknight Park Dr # B, Pittsburgh 15237 | (412) 367-8100 |
| Kachele Group 1014 Perry Hwy, Pittsburgh 15237 | (412) 369-9020 |
| Taylor Structural Engineers 250 Mount Lebanon Blvd # 425, Pittsburgh 15234 | (412) 344-1889 |