| Comelitgroup | 1 | 1 |
| Comelz | 1 | 1 |
| Comersus Open Technologies | 3 | 17 |
| Comet | 1 | 1 |
| Comfast | 2 | 7 |
| Comfast Project | 1 | 5 |
| Comforte | 1 | 1 |
| Comicshout | 1 | 2 |
| Comicsmart | 1 | 1 |
| Comicsplusapp | 1 | 0 |
| Comingchina | 1 | 1 |
| Comix | 1 | 2 |
| CommScope, Inc. | 37 | 37 |
| Commentluv | 1 | 1 |
| Commerce | 1 | 0 |
| Commerce Skrill | 1 | 0 |
| Commerce Balanced Payments Project | 1 | 2 |
| Commerce Ogone Project | 1 | 1 |
| Commerceguys | 2 | 3 |
| Commercial Interactive Media | 1 | 2 |
| Commodityrentals | 7 | 7 |
| Commodore | 1 | 1 |
| Common-lisp-controller | 1 | 1 |
| Common-services | 3 | 3 |
| Common-solutions | 1 | 1 |
| Common1 | 2 | 2 |
| Common Controls Replacement Project | 2 | 3 |
| Common Desktop Environment Project | 1 | 1 |
| Commonname | 1 | 1 |
| Commons Wikis Project | 1 | 1 |
| Commscope | 22 | 45 |
| Commsy | 1 | 2 |
| Commtouch | 1 | 1 |
| Communigate | 2 | 4 |
| Communilink | 1 | 2 |
| Community Architect | 1 | 1 |
| Community Cms | 1 | 2 |
| Community Events Project | 1 | 1 |
| Community Link Pro Web Editor | 1 | 1 |
| Communitydeveloper | 1 | 1 |
| Communityfactory | 1 | 0 |
| Communityserver.org | 1 | 6 |
| Commvault | 5 | 9 |
| Comoblog Project | 1 | 1 |
| Comodo | 11 | 90 |
| Compact Arena Project | 1 | 1 |
| Compact Cms | 1 | 1 |
| Compal | 3 | 3 |
| Compal Broadband Networks | 3 | 1 |
| Companionway | 1 | 1 |
| Company | 1 | 0 |
| Companymaps Project | 1 | 3 |
| Compaq | 43 | 114 |
| Compaq Microcom | 1 | 1 |
| Comparex | 1 | 2 |
| Compass-compile Project | 1 | 1 |
| Compass Rose Project | 1 | 1 |
| Compassionuk | 1 | 1 |
| Compassplus | 4 | 5 |
| Compex | 1 | 1 |
| Compfight Project | 1 | 0 |
| Compile-sass Project | 1 | 0 |
| Compiz | 2 | 4 |
| Complete Online Job Search System Project | 1 | 14 |
| Complete Php Counter | 1 | 2 |
| Complete Responsive Cms Blog Project | 1 | 1 |
| Compmaster.prv.pl | 1 | 3 |
| Compo | 1 | 3 |
| Componentone | 3 | 3 |
| Components For Wp Bakery Page Builder Project | 1 | 1 |
| Componentslab | 1 | 1 |
| Componentspace | 1 | 5 |
| Composr Project | 1 | 4 |
| Compound | 1 | 1 |
| Compression And Archive Extensions Project | 1 | 1 |
| Compression And Archive Extensions Tz Project | 1 | 1 |
| Comprotech | 4 | 20 |
| Compteur | 1 | 2 |
| Compulab | 2 | 3 |
| Computalynx | 3 | 6 |
| Computer And Mobile Repair Shop Management System Project | 1 | 1 |
| Computer Associates | 12 | 87 |
| Computer Power Solutions | 1 | 1 |
| Computer Software Manufaktur | 2 | 6 |
| Computerinsel | 2 | 14 |
| Computerlab | 1 | 1 |
| Computeroil | 1 | 1 |
| Computing For Good | 1 | 3 |
| Computrols | 2 | 10 |
| Compuware | 2 | 3 |
| Comrak Project | 1 | 2 |
| Comscripts | 11 | 21 |
| Comsenz | 6 | 20 |
| Comstock | 1 | 1 |
| Comtechtel | 2 | 4 |
| Comtrend | 5 | 3 |
| Comus | 1 | 1 |
| Comvigo | 1 | 1 |
| Comvironment | 1 | 1 |
| Con0217 Project | 1 | 1 |
