| Cedarcode | |
| Cedaron | California |
| Cedars-Sinai Accelerator | California |
| Cedarville University | Ohio |
| Cedarville University School of Engineering and Computer Science | Ohio |
| Cedesta Systems, LLC | Utah |
| CEDIA | Indiana |
| CEDIA Expo | |
| CEDRA Corporation | New York |
| Cedrela Consulting Group | |
| Cedrus Digital | New York |
| Ceebig, Inc. | |
| Ceemi Agency | |
| CEEVA, Inc. | Pennsylvania |
| Cefaly | Connecticut |
| Cefnogi | |
| CEI | Missouri |
| Ceibo, Inc. | Texas |
| Ceipal Corporation | New York |
| CEIS Holdings, LLC | |
| Cel-Sci | Virginia |
| Celara | |
| Celcuity, Inc. | Minnesota |
| Celdara Medical | New Hampshire |
| Celebrite | |
| Celebros | New Jersey |
| Celegence, LLC | Illinois |
| Celera | |
| Celerant | New York |
| Celerasys Corporation | New Hampshire |
| CelereTech | Illinois |
| Celeri | |
| Celerify, LLC | |
| Celeris Systems, Inc. | |
| Celerity IT, LLC | Virginia |
| Celerix Technologies | California |
| Celero | |
| Celero Commerce | |
| Celero Commercial Solutions | Pennsylvania |
| Celero Systems | Massachusetts |
| Celery | |
| Celesta | California |
| Celestial AI | |
| Celestial AI | |
| Celestial Software | New York |
| Celestial Therapeutics, Inc. | California |
| Celestical Growth Corporation | |
| Celestical Software | Tennessee |
| Celestis, Inc. | |
| Celestix Networks, Inc. | California |