| Contest-Gallery | 1 | 22 |
| Context Project | 1 | 0 |
| Conti | 1 | 3 |
| Contiki-ng | 3 | 9 |
| Contiki-ng Project | 1 | 14 |
| Contiki-os | 2 | 5 |
| Contimex | 1 | 1 |
| Contra Haber Sistemi | 1 | 1 |
| Contract Management System Project | 1 | 1 |
| Contractorscripts | 1 | 1 |
| Contray | 1 | 1 |
| Contribsys | 1 | 3 |
| Control By Web | 2 | 2 |
| Control De Ciber | 1 | 3 |
| Control ID | 4 | 9 |
| Control-webpanel | 1 | 40 |
| ControlByWeb | 3 | 3 |
| Controlbyweb | 1 | 2 |
| Controlled-merge Project | 1 | 0 |
| Controlsystemworks | 1 | 0 |
| Controlup | 3 | 3 |
| Controlzx | 1 | 4 |
| Contronics | 1 | 1 |
| Contus | 1 | 1 |
| Contussupport | 1 | 0 |
| Convergine | 1 | 1 |
| Conversador Project | 1 | 0 |
| Conversations | 1 | 1 |
| Conversejs | 1 | 1 |
| Conversionninja | 1 | 0 |
| Conversios | 2 | 2 |
| Convert-svg-core Project | 1 | 2 |
| Convert-svg Project | 1 | 1 |
| Convert2rhel Project | 1 | 3 |
| ConvertBox | 1 | 1 |
| Convert\ | 1 | 17 |
| Convert Forms Project | 1 | 1 |
| Converto Video Downloader \& Converter Project | 1 | 1 |
| Convertplug | 1 | 1 |
| Convex | 2 | 2 |
| Convirture | 1 | 1 |
| Convos | 1 | 2 |
| Conxint | 1 | 1 |
| Cookex | 1 | 2 |
| Cookie-signature Project | 1 | 1 |
| Cookie Project | 1 | 1 |
| Cookiecutter Project | 1 | 1 |
| Cookielawinfo | 1 | 1 |
| Cookiex-deep Project | 1 | 1 |
| Cookpad | 2 | 2 |
| CoolKit Technology | 2 | 2 |
| Cool Cafe Chat | 1 | 2 |
| Cool Video Gallery Project | 1 | 1 |
| Coolforum | 1 | 6 |
| Coolkit | 1 | 2 |
| Coolmenus | 1 | 1 |
| Coolpad | 4 | 8 |
| Coolpdf | 1 | 1 |
| Coolphp | 4 | 4 |
| Coolplayer | 1 | 6 |
| Coolrecordedit | 1 | 1 |
| Cooolsoft | 2 | 9 |
| Cooperindustries | 4 | 7 |
| Copadata | 3 | 1 |
| Copay | 1 | 1 |
| Copernicus | 1 | 1 |
| Copperleaf | 1 | 1 |
| Coppermine | 1 | 47 |
| Coppermine-gallery | 1 | 2 |
| Cops | 1 | 1 |
| Copy Delete Posts | 1 | 1 |
| Copy-me Project | 1 | 1 |
| Copymatic | 1 | 1 |
| Coquinhoerc20 Project | 1 | 1 |
| Cor Entertainment | 2 | 5 |
| Cordaware | 1 | 2 |
| Core-apps | 9 | 0 |
| CoreFortress | 1 | 1 |
| CoreHR | 1 | 1 |
| Core Ftp | 1 | 18 |
| Core Security Technologies | 1 | 2 |
| Coreboot | 1 | 1 |
| Corebos | 1 | 2 |
| Corecode | 1 | 1 |
| Coredial | 1 | 2 |
| Coredns.io | 1 | 2 |
| Coreftp | 2 | 11 |
| Corega | 8 | 10 |
| Corega Inc | 4 | 8 |
| Corega Inc. | 1 | 1 |
| Corehr | 1 | 1 |
| Corejoomla | 1 | 1 |
| Corel | 27 | 2577 |
| Corel Corporation | 1 | 1 |
| Corellicoin Project | 1 | 1 |
| Coremail | 1 | 4 |
| Coremail Xt Project | 1 | 0 |
| Corenews | 1 | 3 |
| Corenlp-js-interface Project | 1 | 0 |
| Corenlp-js-prefab Project | 1 | 0 |
