| Business | Phone |
| Aguirre Machine & Tool 1879 W Commonwealth Ave # K, Fullerton 92833 | (714) 441-1481 |
| All American Security Fastener 144 W Walnut Ave # B, Fullerton 92832 | (714) 525-0608 |
| Apex Machined Products 633 W Valencia Dr, Fullerton 92832 | (714) 871-6380 |
| Ca Mold 218 S Berkeley Cir, Fullerton 92831 | (714) 871-1298 |
| Creative Machining 765 S State College Blvd # D, Fullerton 92831 | (714) 525-3551 |
| Dymach Inc 1110 E Ash Ave, Fullerton 92831 | (714) 870-9510 |
| Ejay's Machine Co 1108 E Valencia Dr, Fullerton 92831 | (714) 879-0558 |
| Ellingson Inc 119 W Santa Fe Ave, Fullerton 92832 | (714) 773-1923 |
| Glasnapp Tool & Die Co 4070 N Palm St # 701, Fullerton 92835 | (714) 773-4057 |
| Acs Machining 651 S State College Blvd, Fullerton 92831 | (714) 446-0630 |
| American Automatics Machine 1101 E Ash Ave # E, Fullerton 92831 | (714) 526-7911 |
| Amerimex Engineering 1875 W Commonwealth Ave # J, Fullerton 92833 | (714) 680-6062 |
| Avi-Com Manufacturer 410 E Walnut Ave, Fullerton 92832 | (714) 738-1411 |
| Pacific Jig Grinding Co 4030 N Palm St # 305, Fullerton 92835 | (714) 680-4609 |