| Business | Phone |
| Felts Field Aviation Inc 5829 E Rutter Ave, Spokane 99212 | (509) 535-9011 |
| Spokane Airways 9000 W Airport Dr, Spokane 99224 | (509) 455-3432 |
| Western Avionics Inc 5505 E Rutter Ave, Spokane 99212 | (509) 534-7371 |
| X N Avionics 8125 W Pilot Dr, Spokane 99224 | (509) 455-5204 |