| Company | Location |
|---|---|
| Comar Chemicals | Dassenberg, South Africa |
| CombiMatrix | Mukilteo, Washington, United States |
| ComGenex | South San Francisco, California, United States |
| Commercial Industrial Site Locators Inc. | Catonsville, Maryland, United States |
| Commonwealth Scientific and Industrial Research Organisation | Clayton South, Victoria, Australia |
| Community Redevelopment Agency of the City of Los Angeles | Los Angeles, California, United States |
| Competitive Technologies | Fairfield, Connecticut, United States |
| Composites News International | Solana Beach, California, United States |
| Computer Aided Engineering Associates Inc. | Woodbury, Connecticut, United States |
| Computer Optics Inc. | Hudson, New Hampshire, United States |
