| Company | Location |
|---|---|
| Clark-MXR Inc. | Dexter, Michigan, United States |
| Clear Value | Sugar Land, Texas, United States |
| Club of Amsterdam | Amsterdam , Netherlands |
| CMI | Liege, Belgium |
| CMP Cientifica | Madrid, Spain |
| CNFbiofuel, Inc. | Salida, California, United States |
| Codesta LLC | Palo Alto, California, United States |
| CoEv Magnetics | Watertown, South Dakota, United States |
| Cognigine Corp. | Fremont, California, United States |
| CogniTek Management Systems Inc. | Northfield, Illinois, United States |
