| Business | Phone |
| Air Quality Svc 4527 Clairton Blvd, Pittsburgh 15236 | (412) 881-5630 |
| American Standards Testing Pittsburgh 15219 | (412) 391-1333 |
| Concrete Testing & Engineering 108 Ridgeside Rd, Pittsburgh 15237 | (412) 278-5201 |
| Industrial Health Foundation 5001 Baum Blvd, Pittsburgh 15213 | (412) 363-6600 |
| Jeffrey A Nunes Laboratory 2992 Grand Ave, Pittsburgh 15225 | (412) 771-6074 |
| Matco Associates Inc 4640 Campbells Run Rd, Pittsburgh 15205 | (412) 788-1263 |
| Stl Pittsburgh 301 Alpha Dr, Pittsburgh 15238 | (412) 820-8380 |