| Business | Phone |
| Kitty Hawk Accessories 2737 Interstate 94 Service Dr, Ypsilanti 48198 | (734) 484-3590 |
| Ace Aircraft Svc Ypsilanti 48198 | (734) 485-3144 |
| Willow Run Airport 801 Willow Run Airport, Ypsilanti 48198 | (734) 482-2943 |
| Willow Run Jet Ctr 821 Willow Run Airport, Ypsilanti 48198 | (734) 482-8700 |