| Opencv | Opencv | 34 |
| N/a | Opencv 3.0.0 | 2 |
| Opencv.js Project | Opencv.js | 1 |
| HackerOne | Opencv.js Node Module | 1 |
| Hackerone | Opencv.js Node Module | 1 |
| We-com | Opendata Cms | 1 |
| [UNKNOWN] | Opendaylight | 1 |
| [unknown] | Opendaylight | 14 |
| Linuxfoundation | Opendaylight | 14 |
| Opendaylight | Opendaylight | 14 |
| Opendb | Opendb | 2 |
| Opendental | Opendental | 4 |
| Opendetex Project | Opendetex | 1 |
| Opendkim | Opendkim | 2 |
| Trusteddomain | Opendmarc | 5 |
| Opendnssec | Opendnssec | 1 |
| Opendoas Project | Opendoas | 2 |
| Opendocman | Opendocman | 13 |
| Life Sciences Computing Corporation | Opendolphin | 3 |
| Opendolphin | Opendolphin | 3 |
| Dreambox | Opendreambox | 1 |
| Openeclass | Openeclass | 2 |
| Ronomon | Opened | 1 |
| Progress | Openedge | 9 |
| Openedit Inc | Openedit | 1 |
| Openedit | Openedit Digital Asset Management | 3 |
| Openelec | Openelec | 3 |
| N/a | Openemr | 134 |
| Open-emr | Openemr | 134 |
| Openemr | Openemr | 91 |
| Openemr | Openemr/openemr | 36 |
| Openenclave | Openenclave | 3 |
| Openengine | Openengine | 4 |
| Emerson | Openenterprise | 1 |
| Emerson | Openenterprise Scada Server | 5 |
| Opener Project | Opener | 11 |
| Openevidence | Openevidence | 2 |
| Openexif Project | Openexif | 5 |
| Ilm | Openexr | 51 |
| N/a | Openexr | 51 |
| Openexr | Openexr | 51 |
| Afichet | Openexr-viewer | 1 |
| Openfaq | Openfaq | 1 |
| Openfga | Openfga | 9 |
| Openfiler | Openfiler | 4 |
| Ignite Realtime | Openfire | 41 |
| Igniterealtime | Openfire | 41 |
| Opendaylight | Openflow | 5 |
| Opennetworking | Openflow | 5 |
| Openmairie | Openfoncier | 3 |
| Openfortivpn Project | Openfortivpn | 3 |
| 2enetworx | Openforum | 3 |
| Openframe-ascii-image Project | Openframe-ascii-image | 1 |
| HackerOne | Openframe-ascii-image Node Module | 1 |
| Hackerone | Openframe-ascii-image Node Module | 1 |
| Openframe-glslviewer Project | Openframe-glslviewer | 1 |
| HackerOne | Openframe-glslviewer Node Module | 1 |
| Hackerone | Openframe-glslviewer Node Module | 1 |
| Openframe-image Project | Openframe-image | 1 |
| HackerOne | Openframe-image Node Module | 1 |
| Hackerone | Openframe-image Node Module | 1 |
| Openftpd | Openftpd Ftp Server | 1 |
| Opengear | Opengear | 1 |
| Opengear | Opengear Console Server Firmware | 1 |
| Opengoo | Opengoo | 2 |
| Oracle | Opengrok | 1 |
| Oracle Corporation | Opengrok | 1 |
| Cisco | Openh264 | 2 |
| Openh323 Project | Openh323 | 1 |
| Openhab | Openhab | 2 |
| Openhab | Openhab-addons | 2 |
| Openhacker Project | Openhacker | 2 |
| Openhpi | Openhpi | 1 |
| Emreturk | Openhuman | 1 |
| Openi-cms Group | Openi-cms | 2 |
| Openiam | Openiam | 5 |
| Drupal | Openid | 20 |
| Jenkins | Openid | 20 |
| N/a | Openid | 20 |
| Openid | Openid | 20 |
| Peter Wolanin | Openid | 20 |
| Openid | Openid Connect | 2 |
| Jenkins | Openid Connect Authentication | 2 |
| Daggerhart | Openid Connect Generic Client | 1 |
| Daggerhartlab | Openid Connect Generic Client | 1 |
| Openid | Openid4java | 1 |
| Openidm Project | Openidm | 3 |
| Openimpro | Openimpro | 1 |
| Openindiana | Openindiana | 2 |
| Cale Dunlap | Openinvoice | 2 |
| It-novum | Openitcockpit | 14 |
| Eclipse | Openj9 | 17 |
| Oracle | Openjdk | 99 |
| Sun | Openjdk | 99 |
| Openjournal | Openjournal | 1 |
| Apache | Openjpa | 1 |
| The OpenJPEG Project | Openjpeg | 2 |
| N/a | Openjpeg | 78 |
| Openjpeg | Openjpeg | 78 |
| The Openjpeg Project | Openjpeg | 78 |
