| Cosmic Digital Design | |
| Cosmic Forces, Inc. | |
| Cosmic Patterns Software, Inc. | Florida |
| Cosmic Robotics | |
| Cosmic Software, Inc. | Massachusetts |
| Cosmic Wire | Florida |
| Cosmic, Inc. | |
| Cosmick Media | |
| Cosmick Media | |
| Cosmico Studios | |
| Cosmitto | Pennsylvania |
| Cosmo Bio USA | California |
| Cosmonaut Creative Media, LLC | Oregon |
| Cosmonauts.dev, LLC | |
| Cosmos Communications, Inc. | New York |
| Cosmos Innovation, Inc. | |
| CosmosID | Maryland |
| Cosmotown | California |
| Cosmotronics | |
| Cosnim Cloud Technologies, Inc. | |
| CoSo Cloud, LLC | New Jersey |
| Cosper Tech | Wyoming |
| COSS Systems | Connecticut |
| Cost Control Software | Indiana |
| Costa Designs, Inc. | |
| Costa Technologies | Illinois |
| Costanoa Venture Capital | California |
| Costanoa Ventures | California |
| Costanoa Ventures | |
| Costello Design Group | |
| CostFlex | Alabama |
| CostQuest | Ohio |
| CoStrategix Ltd | |
| Cosumner River College | California |
| Cota Capital | California |
| Cotangent Coworking Space | Wyoming |
| Cotasys, Inc. | North Dakota |
| Cothera Bioscience | |
| CotingaSoft | Louisiana |
| Cotiviti, Inc. | |
| Coto Technology USA | Rhode Island |
| Cott Systems, Inc. | Ohio |
| Cottage Computers | New Jersey |
| Cottage24 Marketing & Graphics, LLC | |
| Cottey College | Missouri |
| Cotton Tracks, Inc. | |
| Cottonwood Communications | Colorado |
| Cottonwood Computer | Montana |
| Cottonwood Software | Arizona |
| Cottonwood Software, LLC | Arizona |