| Cobblestone Marketing | |
| CobbleStone Software | New Jersey |
| Cobham Advanced Electronic Solutions | Virginia |
| Cobit Solutions | |
| Cobot | |
| COBRA | Virginia |
| Cobra Solutions, Inc. | |
| Cobra Systems, Inc. | California |
| Cobwebs Technologies | Nebraska |
| CoCalc | Washington |
| Cochise College | Arizona |
| Cochl, Inc. | California |
| Cochran School of Nursing | |
| Cochrane Supply | Michigan |
| Cockos, Inc. | New York |
| Cockroach Labs | New York |
| Coco Design | Florida |
| Coco Robotics | |
| Cocoa Village Publishing | Florida |
| Cocoatech, LLC | California |
| Coconut Island Software | California |
| Cocoon Data, Inc. | |
| Cocrystal Pharma, Inc. | |
| Coda | California |
| CODA Intelligence | New Hampshire |
| Codabrasoft, LLC | Massachusetts |
| Codacy | California |
| Codagenix, Inc. | New York |
| Codakid | Arizona |
| Codal, Inc. | Illinois |
| CodaMetrix | Massachusetts |
| Codank, Inc. | North Carolina |
| Codase | California |
| Codazen | California |
| Codble | |
| Coddle Technologies | |
| Code and Theory | New York |
| Code and Trust | |
| Code Authority | Texas |
| Code Biotherapeutics | |
| Code Blue | Michigan |
| Code Blue Computing | Colorado |
| Code Brew Labs | New York |
| Code Calibre | |
| Code Cheetahs, LLC | |
| Code Chemistry, Inc. | |
| Code Climate | New York |
| Code Conspirators | Georgia |
| Code Creators, Inc. | |
| Code Daily | Oregon |