| N/a | Openclinic | 16 |
| Openclinic Project | Openclinic | 16 |
| Freemedsoftware | Openclinic Ga | 33 |
| N/a | Openclinic Ga | 33 |
| Open Source | Openclinic Ga | 33 |
| Openclinic Ga Project | Openclinic Ga | 33 |
| Openclinica | Openclinica | 2 |
| Alkacon | Opencms | 28 |
| Alkacon | Opencms Apollo Template | 3 |
| Org.opencms | Opencms-core | 1 |
| Openmairie | Opencominterne | 2 |
| Openconext | Openconext Engineblock | 1 |
| Zakon Group | Openconf | 2 |
| Zakongroup | Openconf | 2 |
| Infradead | Openconnect | 10 |
| Openconstructor Project | Openconstructor | 4 |
| Android | Opencore | 1 |
| Openmairie | Opencourrier | 3 |
| Crixp | Opencrx | 13 |
| Opencrx | Opencrx | 13 |
| Org.opencrx | Opencrx-core-config | 1 |
| Opencryptoki Project | Opencryptoki | 4 |
| Citeum | Opencti | 3 |
| N/a | Opencv | 34 |
| Opencv | Opencv | 34 |
| N/a | Opencv 3.0.0 | 2 |
| Codingforentrepreneurs | Opencv Rest Api | 1 |
| 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 |
| Objectcomputing | Opendds | 6 |
| Oci | Opendds | 6 |
| Opendental | Opendental | 4 |
| Opendetex Project | Opendetex | 1 |
| Cmu | Opendiamond | 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 | 134 |
| Openemr | Openemr/openemr | 36 |
| Openenclave | Openenclave | 3 |
| Openengine | Openengine | 4 |
| Emerson | Openenterprise | 1 |
| Emerson | Openenterprise Scada Server | 5 |
| Emerson | Openenterprise Scada Software | 3 |
| Opener Project | Opener | 11 |
| Eipstackgroup | Opener Ethernet/ip | 4 |
| Huawei | Openeuler | 9 |
| N/a | Openeuler:kernel | 1 |
| N/a | Openeuler:mindspore | 8 |
| Openevidence | Openevidence | 2 |
| Openexif Project | Openexif | 5 |
| Ilm | Openexr | 51 |
| N/a | Openexr | 51 |
| Openexr | Openexr | 51 |
| Afichet | Openexr-viewer | 1 |
| Apperta | Openeye | 1 |
| Apperta | Openeyes | 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 |
| Opengamepanel | Opengamepanel | 2 |
| Opengear | Opengear | 1 |
| Opengear | Opengear Console Server Firmware | 1 |
