| Dev!l's | Clanportal | 1 |
| Clansphere | Clansphere | 12 |
| Csphere | Clansphere | 12 |
| Clansys | Clansys | 3 |
| Clantiger | Clantiger | 2 |
| Joomla-clantools | Clantools | 1 |
| Nvidia | Clara Genomics Analysis | 1 |
| Medtronic | Claria Crt-d | 2 |
| Medtronic | Claria Crt-d Firmware | 2 |
| Apple | Claris Emailer | 1 |
| Microsoft | Clarity | 2 |
| Point Clark Networks | Clarkconnect | 1 |
| Blynk | Clarks Inn | 1 |
| Claroline | Claroline | 31 |
| Claromentis | Claromentis | 1 |
| Clash Project | Clash | 5 |
| Clashforwindows | Clash | 1 |
| N/a | Clash | 1 |
| Class | Class | 1 |
| Secure Elements | Class 5 Enterprise Vulnerability Management | 4 |
| Microsoft | Class Package Export Tool | 1 |
| Class-1 | Class-1 Forum | 2 |
| Class-transformer Project | Class-transformer | 1 |
| N/a | Class-transformer | 1 |
| Cts Projects&software | Classad | 1 |
| Classcms | Classcms | 3 |
| Classcms Project | Classcms | 3 |
| Mumara | Classic | 1 |
| Pocketmags | Classic Arms & Militaria | 1 |
| Pocketmags | Classic Car Buyer | 1 |
| Ibm | Classic Meeting Server | 2 |
| Pocketmags | Classic Racer | 1 |
| Tuned Studios | Classic Theme | 1 |
| Jextn | Classified | 1 |
| Osinet | Classified Ads | 5 |
| Pozscripts | Classified Ads | 5 |
| Sepcity | Classified Ads | 5 |
| Pozscripts | Classified Auctions Script | 1 |
| Resalecode | Classified Linktrader Script | 1 |
| Radiustheme | Classified Listing - Classified Ads & Business Directory | 1 |
| Radiustheme | Classified Listing Pro - Classified Ads & Business Directory | 3 |
| Unknown | Classified Listing Pro - Classified Ads & Business Directory Plugin | 2 |
| Radiustheme | Classified Listing Store & Membership | 1 |
| Unknown | Classified Listing Store & Membership Addon | 1 |
| Unknown | Classified Listing – Classified Ads & Business Directory Plugin | 4 |
| Dmxready | Classified Listings Manager | 1 |
| Vspin.net | Classified System | 2 |
| Jlmzone | Classifieds | 3 |
| Php Real Estate Script | Classifieds | 3 |
| Yourfreeworld | Classifieds | 3 |
| Yourfreeworld | Classifieds Blaster Script | 1 |
| Classifieds Caffe | Classifieds Caffe | 1 |
| Joomla | Classifieds Component | 1 |
| Etoshop | Classifieds Creator | 1 |
| Yourfreeworld | Classifieds Hosting Script | 1 |
| Softbizscripts | Classifieds Plus Script | 1 |
| Itech | Classifieds Script | 3 |
| Itechscripts | Classifieds Script | 3 |
| Softbizscripts | Classifieds Script | 3 |
| Fusionzone | Classifiedzone | 1 |
| Radiustheme | Classima | 1 |
| Unknown | Classima | 1 |
| Radiustheme | Classima Core | 1 |
| Unknown | Classima Core | 1 |
| Appthemes | Classipress | 1 |
| Apg Technology | Classmaster | 1 |
| Gnu | Classpath | 1 |
| Aeharding | Classroom-engagement-system | 1 |
| Classroombookings | Classroombookings | 2 |
| Netlab | Classsystem | 2 |
| Classweb | Classweb | 1 |
| Classyfrieds Project | Classyfrieds | 1 |
| Unknown | Classyfrieds | 1 |
| Clavister | Clavister Coreplus | 3 |
| Clavister | Clavister Firewall | 4 |
| Clavister | Clavister Security Gateway | 4 |
| Claws Mail | Claws Mail Tools | 1 |
| Claws Mail | Claws Mail Vcalendar Plugin | 1 |
| Claws-mail | Claws-mail | 7 |
| Claxon Project | Claxon | 1 |
| Claymore Dual Miner Project | Claymore Dual Miner | 4 |
| Nanopool | Claymore Dual Miner | 4 |
| Clbox | Clbox | 1 |
| Megnicholas | Clean And Simple Contact Form | 1 |
| Scripts4you | Clean Cms | 2 |
| Cleaninternet | Clean Internet Browser | 1 |
| Codection | Clean Login | 3 |
| N/a | Clean My Mac | 13 |
| Devsaran | Clean Theme | 1 |
| Clean-contact Project | Clean-contact | 1 |
| Unknown | Clean-contact | 1 |
| Undolog | Cleanfix | 1 |
| Macpaw | Cleanmymac X | 14 |
| N/a | Cleanmymac X | 14 |
| Cleantalk | Cleantalk Antispam | 2 |
| Skymoonlabs | Cleanto | 2 |
| Allisclear | Clear Content | 2 |
| Inetsoftware | Clear Reports | 1 |
| N/a | Clearance | 1 |
| Thoughtbot | Clearance | 1 |
