| Business | Phone |
| Altos Design Automation 3150 De La Cruz Blvd, Santa Clara 95054 | (408) 654-9956 |
| Rio Design Automation Inc 2901 Tasman Dr # 112, Santa Clara 95054 | (408) 844-8038 |
| Rosenheim Automation Syst Corp 3210 Scott Blvd, Santa Clara 95054 | (408) 727-7110 |