| Business | Phone |
| Advance Probe 2360 Qume Dr, San Jose 95131 | (408) 321-9883 |
| Beans International Corp 975 Mabury Rd, San Jose 95133 | (408) 279-5559 |
| Dae Instruments & Svc San Jose 95132 | (408) 942-9999 |
| Data Transit 612 Mindy Way, San Jose 95123 | (408) 281-6100 |
| Deltaquest San Jose 95120 | (408) 997-8644 |
| Electronic Test Instrument Co San Jose 95128 | (408) 873-1785 |
| Hpl Technologies Inc 2033 Gateway Pl # 400, San Jose 95110 | (408) 437-1466 |
| Novx Corp 830 Jury Ct # 6, San Jose 95112 | (408) 998-5555 |
| Wts San Jose 95112 | (408) 289-8910 |
| Jdm 1530 Montague Expy, San Jose 95131 | (408) 435-1517 |
| Millenium Test Svc 1722 Ringwood Ave, San Jose 95131 | (408) 432-6161 |
| Qualectron Systems Corp 780 Montague Expy # 507, San Jose 95131 | (408) 432-1686 |
| Teradyne Inc 880 Fox Ln, San Jose 95131 | (408) 437-9700 |
| Photon Dynamics Inc 5970 Optical Ct, San Jose 95138 | (408) 226-9900 |
| Spectral Dynamics 2730 Orchard Pkwy, San Jose 95134 | (408) 918-2500 |
| Yokogawa Corp Of America 2021 N Capitol Ave # 104, San Jose 95132 | (408) 941-0100 |