| CaseFleet | Georgia |
| Casella Process Solutions | |
| Caselle | Utah |
| Casepoint | |
| Casetext, Inc. | California |
| CaseTrakker Software | California |
| Casetronic | California |
| CaseWorthy | Utah |
| Cash App Investing, LLC | New York |
| Cash Flow Mojo | Florida |
| Cash for Electronic Scrap USA | Massachusetts |
| Cashboard | |
| Cashbox, Inc. | Nevada |
| Cashier Live, LLC | Illinois |
| CashITUSA | Georgia |
| CashQ | Florida |
| CASI Pharmaceuticals, Inc. | |
| Casino Cash, Inc. | |
| Casio Education | New Jersey |
| Cask Data, Inc. | California |
| Caskie Web Solutions, LLC | California |
| Casma Therapeutics, Inc. | |
| CASO Document Management | |
| Casper College | Wyoming |
| Casper Pharma | |
| Caspio | California |
| Cass Information Systems, Inc. | Missouri |
| CASS Tech | Michigan |
| Cassava Sciences, Inc. | Texas |
| Casscomm | Illinois |
| CassetteAI | |
| Cassidy, Inc. | |
| Cassinian Software, LLC | Arizona |
| Cassis Design | |
| Cast Iron Coding | Oregon |
| Cast Iron LA | California |
| Cast IT Systems | California |
| CAST Navigation, LLC | Massachusetts |
| Cast Shadow Design, Inc. | California |
| CAST Software, Inc. | New York |
| Cast, Inc. | New Jersey |
| CAST.AI Group, Inc. | Florida |
| Castalia Systems | Florida |
| Castaway Technologies | Massachusetts |
| Casted | Indiana |
| Castellan, Inc. | California |
| Castile Ventures | Massachusetts |
| Castle | |
| Castle | |
| Castle Biosciences, Inc. | Texas |