| Business | Phone |
| Cox Tooling 457 Borrego Ct, San Dimas 91773 | (909) 592-1265 |
| Dixon Precision Products Co 613 W Covina Blvd, San Dimas 91773 | (909) 394-5666 |
| Mikana Manufacturing Co Inc 949 N Cataract Ave # C, San Dimas 91773 | (909) 592-2117 |
| Pacific Precision Inc 425 Borrego Ct, San Dimas 91773 | (909) 599-8471 |
| Sergio's Machine Co 289 W Allen Ave, San Dimas 91773 | (909) 599-0527 |
| 4di Industries 4460 Brooks, San Dimas 91773 | (909) 592-3004 |
| Advanced Precision Machining 535 W Allen Ave, San Dimas 91773 | (909) 305-0866 |
| Delco Machining 438 W Arrow Hwy # 4, San Dimas 91773 | (909) 305-0289 |
| Double D Precision 571 W Covina Blvd, San Dimas 91773 | (909) 592-9162 |
| Galmac Manufacturing 565 W Covina Blvd, San Dimas 91773 | (909) 592-1953 |
| S & L Machine Products 235 W Allen Ave, San Dimas 91773 | (909) 592-3553 |
| T & T Metals 438 W Arrow Hwy # 14, San Dimas 91773 | (909) 599-1771 |