| Title | CMS Category |
|---|---|
| Canto | DAM Software |
| CarrotCake | Traditional CMS |
| Cartaro | Specialized CMS |
| CastleCMS | Traditional CMS |
| Chameleon | Social Network Solutions |
| Chamilo | E-Learning |
| Chevereto | DAM Software |
| ChurchCRM | Specialized CMS CRM Solutions |
| Citadel | Groupware |
| CiviCRM | CRM Solutions |
| Claromentis | E-Learning Groupware Enterprise Solutions |
| ClassicPress | Traditional CMS |
| clearFusion CMS | Traditional CMS |
| CMS Made Simple | Traditional CMS |
| CMSimple_XH | Flat CMS |
| CMSMayBe | Flat CMS |
| Coaster CMS | Traditional CMS |
| Cobalt | Static Site Generators |
| Cockpit | Headless CMS |
| CODOFORUM | Forum Software |