| Comake, Inc. | |
| Comanche Biopharma | |
| COMAP, Inc. | Massachusetts |
| Comar | |
| Comark | Massachusetts |
| Combined Technology | |
| Combined Therapeutics, Inc. | |
| ComBlock | Maryland |
| ComboApp | Illinois |
| ComboCurve, Inc. | Texas |
| ComboInk | California |
| Combustion Group, Inc. | New Jersey |
| comCables.com | Colorado |
| Comcash, Inc. | California |
| Comcast NBCUniversal LIFT Labs for Entrepreneurs | Pennsylvania |
| Comcast Technology Solutions | Colorado |
| Comcast Ventures | California |
| Comcentia, LLC | Wisconsin |
| ComCo Systems, Inc. | Texas |
| Comcodia | Wyoming |
| COMDUIT | Iowa |
| Come Back Agency | |
| Comecero | Utah |
| Comeet | New York |
| Comentum | California |
| Comerit, Inc. | California |
| Comersus Open Technologies | Florida |
| Comet | New York |
| Comet ML, Inc. | New York |
| CometChat | Colorado |
| CoMetrics | Massachusetts |
| Comfort Window, Inc. | |
| Comfortel | Florida |
| ComfortZones Communications, Inc. | |
| Comhome Technology Solutions by DataTonik | |
| Comindwork | California |
| Cominfo, Inc. | Virginia |
| Comit Technologies | Louisiana |
| Comlinkdata | Massachusetts |
| Comlite Systems | Georgia |
| Comm Innovations | New York |
| Comm-Unity Networking Systems | Texas |
| Comma.ai, Inc. | California |
| Command Alkon | Alabama |
| Command and Control Technologies Corporation | Florida |
| Command Health, LLC | |
| Command Media, LLC | |
| Command Prompt, Inc. | Washington |
| Command Technology | Connecticut |
| Command Web Services, LLC | Wyoming |