| Business | Phone |
| Aircraft Cylinder & Turbin 10959 Tuxford St, Sun Valley 91352 | (818) 767-5000 |
| Coronado Manufacturing 8991 Glenoaks Blvd, Sun Valley 91352 | (818) 768-5010 |
| L A Gauge Co 7440 San Fernando Rd, Sun Valley 91352 | (818) 767-7193 |
| Globe Aerospace 11170 Penrose St, Sun Valley 91352 | (818) 768-6623 |