| Business | Phone |
| Ipact 207 W Greyhound Pass, Carmel 46032 | (317) 569-8121 |
| Jones & Henry Engineers 1980 E 116th St # 120a, Carmel 46032 | (317) 818-1805 |
| Neotech Engineering Svc Inc 4525 Brookshire Pkwy, Carmel 46033 | (317) 846-4550 |
| Priority Engineering 4026 W 10, Carmel 46033 | (317) 244-4234 |