| Business | Phone |
| Airgas Mid-America 3500 Bernard St, St Louis 63103 | (314) 533-3100 |
| Friction Stir Technologies 5201 Northrup Ave, St Louis 63110 | (314) 772-7993 |
| Isc Stud Weld Div 9777 Reavis Rd, St Louis 63123 | (314) 776-6200 |
| Cee Kay Supply Inc 5835 Manchester Ave, St Louis 63110 | (314) 644-3500 |