| Business | Phone |
| A Hattersley & Sons Inc 12884 Northants Cir, Carmel 46032 | (317) 575-8511 |
| Dilling Mechanical Inc 4250 W 99th St # 100, Carmel 46032 | (317) 334-1655 |
| Mission Mechanical Corp 9640 N Augusta Dr, Carmel 46032 | (317) 875-3840 |
| Real Mechanical Inc 475 Gradle Dr, Carmel 46032 | (317) 846-9299 |