| Business | Phone |
| Davelaar Sales & Engineering 60 Mission Dr, Pleasanton 94566 | (925) 516-5700 |
| Ics Electronics 7034 Commerce Cir, Pleasanton 94588 | (925) 416-1000 |
| Oasys Telecom Inc 7060 Koll Center Pkwy # 340, Pleasanton 94566 | (925) 462-7000 |
| Polybus International 1258 Quarry Ln # E, Pleasanton 94566 | (925) 426-4815 |
| Bel Fuse Inc 5627 Stoneridge Dr # 312, Pleasanton 94588 | (925) 227-0102 |
| Tecwell Inc 5627 Stoneridge Dr, Pleasanton 94588 | (925) 734-6000 |