| Business | Phone |
| Cappel & Molltor Builders Inc O Fallon 63366 | (636) 272-7854 |
| Smith's Modular Construction 3944 Highway 79, O Fallon 63366 | (636) 379-3524 |
| Ridgetop Estates Casper Homes 2 Breezy Point Ct, O Fallon 63368 | (636) 978-3112 |
| Rottger Bros Constr & Concrete 900 Highway Y, O Fallon 63366 | (636) 281-4449 |
| Lenny Schulte Constructon Corp 933 Mueller Rd, O Fallon 63366 | (636) 281-2145 |
| Henry Construction O Fallon 63366 | (636) 926-8600 |
| Cotton Building Corp O Fallon 63366 | (636) 240-5641 |