| Citystar | City Star Me | 1 |
| Cththemes | Citybook | 4 |
| Google | Cityhash | 1 |
| Citypredict.whauwiller Project | Citypredict.whauwiller | 1 |
| HackerOne | Citypredict.whauwiller Node Module | 1 |
| Hackerone | Citypredict.whauwiller Node Module | 1 |
| Citysearch / Hotfrog / Gelbeseiten Clone Script Project | Citysearch / Hotfrog / Gelbeseiten Clone Script | 1 |
| Rogersmedia | Citytv Video | 1 |
| City Writer | Citywriter | 1 |
| Cisco | Cius | 1 |
| Cisco | Cius Software | 1 |
| Ceph | Civetweb | 3 |
| Civetweb Project | Civetweb | 3 |
| Civetweb Project | Civetweb | 1 |
| Honda | Civic 2012 | 1 |
| Honda | Civic 2018 | 2 |
| Honda | Civic 2018 Firmware | 2 |
| Accela | Civic Platform | 4 |
| Accela | Civic Platform Citizen Access Portal | 1 |
| Civic-cms | Civic-cms | 1 |
| Civica Software | Civica | 1 |
| Civicrm | Civicrm | 9 |
| Civicrm | Civicrm Private Report | 1 |
| Civicspace | Civicspace | 1 |
| Autodesk | Civil 3d | 20 |
| Autodesk | Civil Design | 1 |
| Ninjitsuweb | Civiregister | 1 |
| Cj-design | Cj Dynamic Poll | 1 |
| Cj Design | Cj Tag Board | 3 |
| Omron | Cj2h Plc | 2 |
| Omron | Cj2m Plc | 2 |
| Xoops | Cjay Content Module | 2 |
| Cjg Explorer Pro | Cjg Explorer Pro | 2 |
| Cjguestbook | Cjguestbook | 2 |
| Cjguestbook Project | Cjguestbook | 2 |
| Cj Desing | Cjlinkout | 1 |
| Cjmall | Cjmall | 1 |
| OpenIDC | Cjose | 1 |
| Cjoverkill | Cjoverkill | 1 |
| Cjson Project | Cjson | 9 |
| Davegamble/cjson | Cjson | 9 |
| Cj Desing | Cjweb2mail | 1 |
| Xmidt | Cjwt | 1 |
| Cjxtoken Project | Cjxtoken | 1 |
| Honeywell | Ck75 | 1 |
| Nikooo777 | CkSurf | 1 |
| Ckan | Ckan | 7 |
| Okfn | Ckan | 7 |
| Ckan | Ckan-docker-base | 1 |
| Nervos | Ckb | 3 |
| Ckeditor | Ckeditor | 25 |
| Cksource | Ckeditor | 25 |
| Ckeditor | Ckeditor 5-link | 1 |
| Cksource | Ckeditor Drupal Module | 1 |
| Ckeditor | Ckeditor4 | 10 |
| Ckeditor | Ckeditor5 | 3 |
| Ckeditor | Ckeditor5-engine | 1 |
| Ckeditor | Ckeditor5-font | 1 |
| Ckeditor | Ckeditor5-html-embed | 1 |
| Ckeditor | Ckeditor5-html-support | 1 |
| Ckeditor | Ckeditor5-image | 1 |
| Ckeditor | Ckeditor5-list | 1 |
| Ckeditor | Ckeditor5-markdown-gfm | 2 |
| Ckeditor | Ckeditor5-media-embed | 1 |
| Ckeditor | Ckeditor5-paste-from-office | 1 |
| Ckeditor | Ckeditor5-widget | 1 |
| Cksource | Ckfinder | 2 |
| Cartkeeper | Ckgold Shopping Cart | 3 |
| Cksic | Cks32f103 | 2 |
| Cksic | Cks32f103 Firmware | 2 |
| Sap Se | Cla Assistant | 2 |
| Sap | Cla-assistant | 1 |
| Sap Se | Cla-assistant | 1 |
| Jenkins | Claim | 2 |
| Redhat | Clair | 1 |
| Cedric | Claire Portailphp | 2 |
| Cisco | Clam Antivirus | 3 |
| Cisco | Clam Antivirus (clamav) | 1 |
| Cisco | Clamav | 158 |
| Clam Anti-virus | Clamav | 43 |
| Clamav | Clamav | 158 |
| Clamavs | Clamav | 158 |
| N/a | Clamav | 158 |
| N/a | Clamav Antivirus Software Versions 0.99.2 And Prior | 7 |
| N/a | Clamav Before 0.100.1 Unknown | 2 |
| Clamscan Project | Clamscan | 1 |
| N/a | Clamscan | 1 |
| Clam Anti-virus | Clamxav | 2 |
| Clamxav | Clamxav | 2 |
| Clan Manager Pro | Clan Manager Pro | 4 |
| Cmpro Team | Clan Manager Pro | 4 |
| Antonbolling | Clan7ups | 1 |
| Llvm | Clang | 1 |
| Clang-extra Project | Clang-extra | 1 |
| HackerOne | Clang-extra Node Module | 1 |
| Hackerone | Clang-extra Node Module | 1 |
| Clanlib | Clanlib | 1 |
| Clanlite | Clanlite | 3 |
| Blackorpheus | Clanmemberskript | 1 |
| Dev!l's | Clanportal | 1 |
