| Company | Location |
|---|---|
| Cognigine Corp. | Fremont, California, United States |
| CogniTek Management Systems Inc. | Northfield, Illinois, United States |
| Coherent Inc. | Santa Clara, California, United States |
| Coherent Technologies Inc. | Boulder, Colorado, United States |
| Coherix Corp. | Grandville, Michigan, United States |
| COLANDIS GmbH | Kahla, Germany |
| Colibrys SA | Neuchatel, Switzerland |
| Color Kinetics Inc. | Boston, Massachusetts, United States |
| Colorado Nanotechnology Alliance | Boulder, Colorado, United States |
| Colossal Storage Corp. | Fremont, California, United States |
