| Business | Phone |
| Alturair 1780 Joe Crosson Dr, El Cajon 92020 | (619) 449-1570 |
| Cal-Metal Manufacturer 395 Vernon Way, El Cajon 92020 | (619) 588-9707 |
| Chromalloy San Diego Inc 1071 Industrial Pl, El Cajon 92020 | (619) 579-9876 |
| Aerowind Corp 1959 John Towers Ave, El Cajon 92020 | (619) 562-6090 |
| Controlled Precision Manufacturer 352 Coogan Way, El Cajon 92020 | (619) 579-9963 |