| Business | Phone |
| Abbott Tool & Die Inc 920 Lone Star Dr, O Fallon 63366 | (636) 240-2723 |
| Bramko Tool & Engineering 832 Mid Point Dr, O Fallon 63366 | (636) 978-1533 |
| Livingston Tool & Mfg 911 E Terra Ln, O Fallon 63366 | (636) 281-9193 |
| Hofmann Tool Co 1029 E Terra Ln, O Fallon 63366 | (636) 272-1999 |
| Independent Tool & Mold 41 W Industrial Dr, O Fallon 63366 | (636) 281-2270 |