| CMTx Biotech, Inc. | New York |
| CMX Systems, Inc. | Florida |
| CN Infometic, Inc. | |
| CN2 Spatial | |
| CN2, Inc. | Georgia |
| CNBS Software | Ohio |
| CNBX Phamaceuticals | |
| CNC | Alabama |
| CNC Electronics, LLC | Virginia |
| CNC Solutions, Inc. | Texas |
| CNC Systems, Inc. | Michigan |
| cnc137 Design | Ohio |
| CND Life Sciences | Arizona |
| CNET | California |
| Cnetics Technologies, LLC | Georgia |
| CNEX Labs, Inc. | California |
| CNI | Ohio |
| CNI Technology | Colorado |
| CNP | Florida |
| CNS Healthcare | Florida |
| CNS Pharmaceuticals, Inc. | |
| CNSI | Maryland |
| CNX Corporation | Illinois |
| CO OP Brand Co. | |
| CO+HOOTS | |
| Co-Active Training Institute | California |
| Co-Diagnostics, Inc. | Utah |
| Co-Location.com, Inc. | California |
| Co-op Solutions | |
| Co-Op Web, Inc. | Arizona |
| CO-Spot | California |
| Co.Lab | Washington |
| CO2 Consulting Group, Inc. | North Carolina |
| CoA Therapeutics | |
| Coaction Consulting, LLC | |
| CoAction Software Corporation | California |
| CoActionSoftware | |
| Coactive Systems, Inc. | California |
| CoAdvantage | |
| Coag-Sense | California |
| Coagulant Therapeutics | |
| CoAkcess Partners | Texas |
| Coal Hill Ventures | Pennsylvania |
| Coalesce | New York |
| Coalfire | Colorado |
| Coalition for Networked Information | District of Columbia |
| Coalition Technologies | |
| Coalition, Inc. | California |
| Coalmarch by Workwave | North Carolina |
| CoapTech | Maryland |