| Company | Location |
|---|---|
| Custom Control Sensors (CCS) | Chatsworth, California, United States |
| CVD Equipment Corporation | Central Islip, New York, United States |
| CVD Systems & Services Inc. | Phoenixville, Pennsylvania, United States |
| CVI Melles Griot | Carlsbad, California, United States |
| Cyanagen S.r.l. | Bologna, Italy |
| Cybernet Systems Corp. | Ann Arbor, Michigan, United States |
| Cycloid Co. | Cranberry Twp, Pennsylvania, United States |
| Cymbet Corp. | Elk River, Minnesota, United States |
| Cypress Foundry Solutions | Bloomington, Indiana, United States |
| Cypress Semiconductor Corp. | San Jose, California, United States |
