| Business | Phone |
| American Orthotics Lab Inc 8516 Manchester Rd, St Louis 63144 | (314) 963-9999 |
| Netlabs 710 N Tucker Blvd, St Louis 63101 | (314) 241-9101 |
| Growth Lab Productions 5516 Louisiana Ave, St Louis 63111 | (314) 351-9595 |
| Heptest Laboratories Inc 1431 Hanley Industrial Ct, St Louis 63144 | (314) 962-3527 |
| Gamma Healthcare 4416 Lemay Ferry Rd, St Louis 63129 | (314) 416-0142 |
| Enviro-Chem Systems Lab 10610 Trenton Ave, St Louis 63132 | (314) 426-3422 |
| Brun Laboratories Po Box 260162, St Louis 63126 | (314) 541-4606 |