| Business | Phone |
| Industrial Microscope Systems 233 E Weddell Dr, Sunnyvale 94089 | (408) 734-0323 |
| Scientific Instrument Co 1128 W Evelyn Ave, Sunnyvale 94086 | (408) 739-2631 |
| Ludl Electronic Products Ltd Sunnyvale 94089 | (408) 734-5650 |
| M 2 Assoc 233 E Weddell Dr # M, Sunnyvale 94089 | (408) 735-0495 |