| Cookware, Inc. | Indiana |
| Cool Energy | |
| Cool River Systems, LLC | North Carolina |
| Cooleaf, Inc. | Georgia |
| Coolearth Software, Inc. | Washington |
| Cooler Heads Care, Inc. | |
| Coolerguys | Washington |
| Coolfire | Missouri |
| Coolfire Solutions | Missouri |
| CoolGraphicStuff.com | New York |
| CoolMedia, LLC | Washington |
| Coologics | |
| CoolSim Software | New Hampshire |
| CoolSo | Massachusetts |
| CoolSoft, LLC | Florida |
| Coolsoft, LLC | Kentucky |
| CoolTool | California |
| Cooltron Industrial Supply, Inc. | California |
| Cooper Internet Services | California |
| Cooper Systems, Inc. | Tennessee |
| Cooper University Health Care | |
| Cooperative Computing | |
| Cooperative Systems | Connecticut |
| Cooperatus | Georgia |
| CooperSurgical, Inc. | Connecticut |
| Cooperteam | Massachusetts |
| Coord | New York |
| Coordinated Business Systems Ltd | Minnesota |
| CoordinateHQ | |
| Coordination Pharmaceuticals, Inc. | |
| COPA DATA Supplies | Florida |
| Copado, Inc. | Illinois |
| Copan Diagnostics, Inc. | California |
| COPC, Inc. | Florida |
| Copec Wind Ventures | |
| Copernic Space | |
| Copernican Technologies, Inc. | California |
| Coperniq | |
| Copia Interactive, LLC | New York |
| CopiedCode | Arkansas |
| Copier1, LLC | Maryland |
| Copiers Plus | New Jersey |
| CopierSupplyStore.com | Florida |
| Copilot Money, Inc.. | |
| Copilot.cx | New York |
| CoPlane | |
| Coplex | Arizona |
| Copley | |
| Copley Controls Corporation | Massachusetts |
| Copley Internet Systems, Inc. | North Carolina |