| Business | Phone |
| Automatic Rain Inc 373 Round Tower Dr, St Charles 63304 | (636) 928-4480 |
| Wilson Irrigation Co 148 Cedar Mill Ct, St Charles 63304 | (636) 447-0900 |
| Thompson & Assoc St Charles 63304 | (636) 329-1004 |
| Irrigation & Lawn Svc 1029 Harvest Home Cir, St Charles 63304 | (636) 477-0384 |