| Classcms Project | Classcms | 3 |
| Ibm | Classic Meeting Server | 2 |
| Osinet | Classified Ads | 5 |
| Claws Mail | Claws Mail Tools | 1 |
| Zoom Video Communications, Inc. | CleanZoom | 1 |
| CleverSoft | Clever Addons For Elementor | 1 |
| Unknown | ClickBank Affiliate Ads | 2 |
| Unknown | Client Invoicing By Sprout Invoices – Easy Estimates And Invoices For WordPress | 1 |
| Oracle Corporation | Clinical Remote Data Capture Option | 1 |
| Clipboard Project | Clipboard | 1 |
| Clippercms | Clippercms | 10 |
| Unknown | Clipr | 1 |
| Migrate | Clone | 4 |
| Jedox | Cloud | 11 |
| IBM | Cloud APM | 3 |
| Qualys | Cloud Agent | 4 |
| Pivotal | Cloud Cache | 1 |
| Pivotal | Cloud Foundry | 11 |
| Cloud Foundry | Cloud Foundry Container Runtime (CFCR) | 2 |
| Oracle Corporation | Cloud Infrastructure | 6 |
| IBM | Cloud Pak System | 19 |
| IBM | Cloud Pak For Automation | 9 |
| IBM | Cloud Pak For Data | 3 |
| IBM | Cloud Pak For Security | 32 |
| CloudExplorer-Dev | CloudExplorer-Lite | 6 |
| Red Hat | CloudForms | 8 |
| RiyaLab Co., Ltd. | CloudISO | 1 |
| Cisco | Cloud Portal | 9 |
| Inpiazza | Cloud Wifi | 1 |
| Redhat | Cloudforms | 25 |
| Redhat | Cloudforms 3.0.1 Management Engine | 2 |
| Redhat | Cloudforms 3.0.2 Management Engine | 2 |
| Redhat | Cloudforms 3.0.3 Management Engine | 2 |
| Redhat | Cloudforms 3.0.4 Management Engine | 2 |
| Redhat | Cloudforms 3.0.5 Management Engine | 2 |
| Quali | Cloudshell | 2 |
| Huawei | Cm-h-shark-bd Firmware | 1 |
| Glpi-project | Cmdb | 2 |
| Tecnoteca | Cmdbuild | 1 |
| Cms-dev | Cms | 44 |
| Sitecore | Cms | 45 |
| Weblication | Cms Core \& Grid | 1 |
| Cmsmadesimple | Cmsmadesimple | 2 |
| Roche | Coaguchek Pro Ii Firmware | 3 |
| Coastercms | Coastercms | 1 |
| Sun | Cobalt Raq 4 | 5 |
| Cobblerd | Cobbler | 18 |
| Emn | Coccinelle | 1 |
| Cockpit-project | Cockpit | 17 |
| Hitrontech | Coda-4582u Firmware | 1 |
| Intland | Codebeamer | 8 |
| Codecov | Codecov-python | 1 |
| Wibu | Codemeter | 9 |
| Wagtailcrx | Codered Extensions | 1 |
| IBM Corporation | Cognos Analytics | 77 |
| IBM | Cognos Analytics Cartridge For Cloud Pak For Data | 1 |
| IBM Corporation | Cognos Business Intelligence | 10 |
| IBM | Cognos Controller | 14 |
| Coherence Project | Coherence | 12 |
| Franklin Electric Fueling Systems | Colibri | 1 |
| Extendthemes | Colibri Page Builder | 2 |
| Hummingbird | Collaboration | 34 |
| Zimbra | Collaboration | 34 |
| Cybozu | Collaborex | 2 |
| Unspecified | College Website Management System | 2 |
| College Website Content Management System Project | College Website Content Management System | 1 |
| Colorbox Project | Colorbox | 1 |
| HUAWEI | Columbia-TL00B | 1 |
| Autartica | Com Autartitarot | 1 |
| Combined Charging System | Combined Charging System | 1 |
| Unknown | Coming Soon & Maintenance Mode By Colorlib | 1 |
| Unknown | Coming Soon And Maintenance Mode | 3 |
| Seedprod | Coming Soon Page\, Under Construction \& Maintenance Mode | 1 |
| Gallagher | Command Centre | 25 |
| Gallagher | Command Centre Server | 2 |
| Kyocera | Command Center Rx | 1 |
| Munkireport Project | Comment | 1 |
| @rex1989 | Comment Engine Pro (WordPress Plugin) | 1 |
| Happy-coders | Comments Like Dislike | 2 |
| Unknown | Comments – WpDiscuz | 5 |
| GVectors Team | Comments – WpDiscuz | 5 |
| Commerceguys | Commerce | 4 |
| Commerce Balanced Payments Project | Commerce Balanced Payments | 2 |
| McAfee | Common UI (CUI) | 1 |
| Oracle | Common Applications | 3 |
| Apache | Commons Fileupload | 4 |
| Oracle Corporation | Communications Interactive Session Recorder | 2 |
| Oracle Corporation | Communications WebRTC Session Controller | 1 |
| Oracle | Communications Asap | 1 |
| Oracle | Communications Metasolv Solution | 5 |
| Oracle | Communications Order And Service Management | 1 |
| Invisioncommunity | Community | 3 |
| AWS Community | Community Collections | 3 |
| Mysql | Community Server | 6 |
| Alfresco | Community Share | 1 |
| Sijio | Community Software | 3 |
| WAGO | Compact Controller CC100 (751-9301) | 5 |
| Unknown | Compact WP Audio Player | 3 |
| Compfight Project | Compfight | 2 |
| Medtronic | Compia CRT-D | 1 |
