| Company | Location |
|---|---|
| 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 |
| Columbia University | New York, New York, United States |
| Columbia University - Brus Group Labs | New York, New York, United States |
| Columbia University - Mechanical Engineering | New York, New York, United States |
