| Clips AI, Inc. | |
| Cliq | California |
| Clique Studios, LLC | Illinois |
| Clique-Now | |
| Clive R. Rowe | North Carolina |
| Clix | Missouri |
| Clixo, LLC | Colorado |
| Clkngo Software Corporation | California |
| CLO Virtual Fashion, LLC | |
| Clobotics | Washington |
| Clockify | California |
| Clockly | New York |
| Clocktower Group | California |
| Clockwise, Inc. | |
| Clockwork | Illinois |
| Clockwork Active Media | Minnesota |
| Clockwork Micro | |
| Clockwork Solutions | Texas |
| Clockwork Systems, Inc. | |
| Clockwork Universe, Inc. | Virginia |
| Clocr, Inc. | |
| Clogration | Texas |
| Clojure | North Carolina |
| Clone Systems, Inc. | Pennsylvania |
| Cloneless | |
| Clonemyvoice.io | New Mexico |
| CloneTex Systems, Inc. | Texas |
| CloodOn, Inc. | |
| Clootrack | Delaware |
| Clorder | California |
| Close | California |
| Closed Loop | California |
| Closed Loop Partners | |
| ClosedLoop | Texas |
| ClosedOpp | |
| Closeloop Technologies | California |
| Closerlook, Inc. | Illinois |
| ClostraBio, Inc. | Illinois |
| ClotChip | Ohio |
| Cloud 9 Counseling, Inc. | Texas |
| Cloud 9 Internet, Inc. | New York |
| Cloud 9 Software | California |
| Cloud 9 Ventures, LLC | |
| Cloud Academy, Inc. | California |
| Cloud Assert, LLC | Washington |
| Cloud Ave | California |
| Cloud Brigade | California |
| Cloud Capital Technologies Holdings, Inc. | Massachusetts |
| Cloud Catalogs | New Jersey |
| Cloud Compliance | Illinois |