| Business | Phone |
| American Wafer Svc 414 Umbarger Rd, San Jose 95111 | (408) 227-7676 |
| Aptek Industries Inc 414 Umbarger Rd # F, San Jose 95111 | (408) 363-8026 |
| Cal-Bay Grinding Inc 795 E Brokaw Rd, San Jose 95112 | (408) 436-8550 |
| D & D Precision Grinding 1701 Fortune Dr # F, San Jose 95131 | (408) 526-9026 |
| Micro Honing 738 Charcot Ave, San Jose 95131 | (408) 434-0220 |
| Valley Lapping 2883 Aiello Dr, San Jose 95111 | (408) 226-1773 |