| Colbridge Web Logics | California |
| Colby College Department of Computer Science | Maine |
| Colby College Mathematics | Maine |
| Colby-Sawyer College | New Hampshire |
| Cold Storm Media Productions, LLC | |
| colddata, LLC | California |
| ColdQuanta, Inc. | Colorado |
| Coldwater Technology, Inc. | Texas |
| Cole Instrument Corporation | California |
| Cole Kepro International, LLC | Nevada |
| Cole Solutions, LLC | New Jersey |
| Colegio Universitario de San Juan | Puerto Rico |
| Coleman Comprehensive Solutions, LLC | Virginia |
| Coleman Microwave Company | Virginia |
| Coles Marketing | Indiana |
| ColeSoft Marketing, Inc. | Virginia |
| Colfax International | California |
| Colgate University Department of Computer Science | New York |
| Colgate University Department of Mathematics | New York |
| Colibri Digital Marketing | |
| Colibri Heart Valve, LLC | Colorado |
| Colibri Limited, LLC | Georgia |
| Colibri Solutions, LLC | New York |
| Colight | New Jersey |
| Colin C. Campbell | |
| CoLinear Systems, Inc. | Georgia |
| Colinet, Inc. | Tennessee |
| Collabera | New Jersey |
| CollabNet | California |
| Collabnix, Inc. | |
| CollaborateMD, Inc. | Florida |
| Collaboration 133 | |
| Collaborations Pharmaceuticals, Inc. | |
| Collaborative Clinical Research Consulting, Inc. | |
| Collaborative Drug Discovery, Inc. | California |
| Collaborative Fund Management, LLC | |
| Collaborative Holdings | |
| Collaborative Medicinal Development, LLC | California |
| Collaborative Research in Computational Neuroscience | |
| Collaborative Ventures | North Carolina |
| CollaborativeCare, Inc. | |
| Collaborator | California |
| CollabraLink Technologies | Virginia |
| CollabraTech Solutions, LLC | Arizona |
| CollabsHub | |
| Collabspace | California |
| Collagen Medical, LLC | Massachusetts |
| Collagen Solutions (US), LLC | Minnesota |
| Collate, Inc. | |
| Collateral Edge | |