| Business | Phone |
| Alfa Tech Consulting Engineers 1111 Lockheed Martin Way, Sunnyvale 94089 | (408) 752-0135 |
| Communications Engineering 1030 E El Camino Real Pmb 222, Sunnyvale 94087 | (408) 729-3993 |
| Maurice's General Engineering 616 E Taylor Ave, Sunnyvale 94085 | (408) 736-3545 |
| Simple Silicon 710 Lakeway Dr, Sunnyvale 94085 | (408) 530-9500 |
| Teaby Advanced Engineering 990 Yorktown Dr, Sunnyvale 94087 | (408) 773-0272 |