| Business | Phone |
| Ametek Aerospace Products Div 1644 Whittier Ave, Costa Mesa 92627 | (949) 642-2400 |
| Coil Tech Inc 3545 Cadillac Ave, Costa Mesa 92626 | (714) 708-8715 |
| Dynalloy Inc 3194 Airport Loop Dr # A, Costa Mesa 92626 | (714) 436-1206 |
| Ocg Inc 775 W 16th St, Costa Mesa 92627 | (949) 631-3707 |