| Business | Phone |
| Arch Conveying Corp 6200 N Broadway, St Louis 63147 | (314) 383-5249 |
| Williams Patent Crusher Co 813 Montgomery St, St Louis 63102 | (314) 621-3348 |
| Vilberg-Victor Co 120 E Krauss St, St Louis 63111 | (314) 351-0877 |
| Gates Manufacturing Co 3189 Jamieson Ave, St Louis 63139 | (314) 647-5662 |