| Business | Phone |
| Ars Aviation 4731 Murvihill Rd, Valparaiso 46383 | (219) 477-5561 |
| Aviation Maintenance Mgmt 4601 Murvihill Rd, Valparaiso 46383 | (219) 531-2695 |
| Precision Aircraft Maintenance 3827 Murvihill Rd, Valparaiso 46383 | (219) 548-3826 |
| Professional Aviation Inc 3801 Murvihill Rd, Valparaiso 46383 | (219) 462-8781 |