| Cardiosense | Illinois |
| Cardiospire | California |
| Cardiovascular Systems, Inc. | Minnesota |
| Cardiowise, Inc. | Arkansas |
| Cardless, Inc. | California |
| Cardo AI | |
| Cardo Systems, Inc. | |
| CardPaymentOptions.com, Inc. | |
| Cardreader, Inc. | California |
| Cardsmith, LLC | Oregon |
| Cardtapp, Inc. | Washington |
| Cardurion Pharmaceuticals | |
| Cardwell Beach | |
| CardWerk | Georgia |
| Care Minds | |
| Care Research | Colorado |
| Care Zone‚ Inc. | Washington |
| Care.coach Corporation | California |
| CareAcademy | |
| CareAR | Texas |
| CareBase | Colorado |
| Carebrain, Inc. | |
| CareCloud Corporation | Florida |
| CareCloud, Inc. | |
| CareDx, Inc. | California |
| Career Academy, Inc. | Massachusetts |
| Career Employer | |
| Career Karma | California |
| Career Soft Solutions | New Jersey |
| Career Source Central Florida | Florida |
| CareerBoard.com | Ohio |
| CareerDean | |
| Careerflow, Inc. | California |
| Careerist | Wyoming |
| CareerPlug | Texas |
| Careers in Code | New York |
| CareerUp | |
| CareerWork$ | |
| Carefi | North Carolina |
| CareFlash, LLC | |
| Careforth | |
| Carefull Corporation | |
| Caregility | New Jersey |
| CareGuide, Inc. | |
| CareGuide, Inc. | |
| Carehub | Texas |
| CareJourney | |
| Carelife Software Group | Washington |
| Carelon Global Solutions | Indiana |
| Carematix | |