| Codewand | 1 | 1 |
| Codewidgets | 5 | 7 |
| Codewiz | 1 | 1 |
| Codeworks | 1 | 1 |
| Codeworx Technologies | 1 | 14 |
| Codewrights | 2 | 1 |
| Codex-m | 1 | 1 |
| CodexShaper | 1 | 1 |
| CodexThemes | 1 | 1 |
| Codex Project | 1 | 1 |
| Codextrous | 1 | 3 |
| Codez | 1 | 1 |
| Codezips | 1 | 1 |
| Codfront Labs | 1 | 1 |
| Codiad | 1 | 5 |
| Codice-cms | 1 | 1 |
| Codingfish | 1 | 2 |
| Codingforentrepreneurs | 1 | 1 |
| Codoforum | 1 | 14 |
| Codologic | 2 | 10 |
| Cofax | 1 | 1 |
| Coffee-inn | 1 | 0 |
| Coffee-jumbo Project | 1 | 1 |
| Coffeecoin Project | 1 | 1 |
| Coffeecup Software | 3 | 3 |
| Coffescript Project | 1 | 1 |
| Cog-Creators | 2 | 0 |
| Cogentdatahub | 4 | 17 |
| Cogites | 1 | 1 |
| Cognex | 2 | 4 |
| Cognitect | 1 | 1 |
| Cognito | 1 | 1 |
| Cognitoys | 1 | 3 |
| Coherence Project | 1 | 12 |
| Cohesity | 3 | 3 |
| Cohesive | 1 | 1 |
| Cohuhd | 1 | 5 |
| Coinkite | 2 | 2 |
| Coinlancer | 1 | 1 |
| Coinquer Project | 1 | 1 |
| Coins-global | 1 | 7 |
| Coinsoft Technologies | 1 | 17 |
| Coinstar Myadvancedtoken Project | 1 | 1 |
| Cointoken Project | 1 | 1 |
| Cointroops Project | 1 | 1 |
| Cokestudio | 1 | 0 |
| Cold Bbs | 1 | 1 |
| Coldgen | 3 | 4 |
| Coleman Watts | 1 | 1 |
| Coles Credit Cards | 1 | 0 |
| Collabnet | 2 | 50 |
| Collabora Productivity | 1 | 1 |
| CollaboraOnline | 1 | 8 |
| Collaboraoffice | 1 | 1 |
| Collaborative Portal Server Project | 1 | 1 |
| Collabtive | 1 | 16 |
| Collectd | 1 | 3 |
| Collection.js Project | 1 | 1 |
| Collective.dms.basecontent Project | 1 | 1 |
| Collective.task Project | 1 | 1 |
| Collectiveaccess | 2 | 2 |
| Collectivecolors | 1 | 1 |
| Collector | 2 | 6 |
| Collectorz | 1 | 1 |
| College Management | 1 | 2 |
| College Management System Project | 1 | 6 |
| College Website Content Management System Project | 1 | 1 |
| Collne | 2 | 2 |
| Collne Inc. | 2 | 24 |
| Colloquy | 1 | 1 |
| Colony | 4 | 4 |
| Color | 2 | 8 |
| Color-string Project | 1 | 1 |
| Colorbox Node | 1 | 1 |
| Colorbox Project | 1 | 1 |
| Colord Project | 1 | 2 |
| Colored Scripts | 1 | 2 |
| Colorlib | 1 | 0 |
| Colors.js Project | 1 | 1 |
| Colorscore Project | 1 | 1 |
| Colossusxt | 1 | 1 |
| Colten Edwards | 1 | 9 |
| ColumbiaSoft | 1 | 1 |
| Columbia University | 1 | 1 |
| Columbiaweather | 1 | 6 |
| Columnar Project | 1 | 1 |
| Com-property | 1 | 2 |
| Com2001 | 1 | 2 |
| Com21 | 1 | 1 |
| Com Colorlab | 1 | 1 |
| Com Janews | 1 | 1 |
| Com Jumi | 1 | 1 |
| Com Sg | 1 | 1 |
| Com Yanc | 1 | 1 |
| Comba | 2 | 22 |
| Combilladvancedtoken Project | 1 | 1 |
| Combined Charging System | 2 | 2 |
| Combodo | 3 | 32 |
| Comcast | 4 | 3 |
| Comdev | 11 | 16 |
