| OSD Subscribe | OSD Subscribe | 1 |
| OpenShift | OSIN | 1 |
| Electra | OSK201 | 1 |
| Unknown | OSM | 1 |
| MiKa | OSM – OpenStreetMap | 1 |
| Unknown | OSMapper | 1 |
| Thinkingreed Inc. | OSS Calendar | 1 |
| Oracle Corporation | OSS Support Tools | 5 |
| ZTE | OTCP | 1 |
| Xootix | OTP Login Woocommerce & Gravity Forms | 1 |
| Accessing Template Content Without Permissions | OTRS | 51 |
| OTRS AG | OTRS | 51 |
| OTRS AG | OTRSCIsInCustomerFrontend | 2 |
| OTRS AG | OTRSCalendarResourcePlanning | 1 |
| OTRS AG | OTRSCustomContactFields | 1 |
| OTRS AG | OTRSSTORM | 1 |
| OTRS AG | OTRSTicketForms | 1 |
| Unknown | OWM Weather | 2 |
| Uwe Jacobs | OWM Weather | 2 |
| Geopython | OWSLib | 1 |
| OX Software GmbH | OX App Suite | 33 |
| ZTE | OX-330P | 1 |
| Green Packet | OX350 | 1 |
| Siemens AG | OZW672 | 1 |
| Siemens AG | OZW772 | 1 |
| Berkaygediz | O Blog | 1 |
| Chinamobileltd | Oa Mailbox Pc | 1 |
| Xinfu | Oa System | 1 |
| Oaboard | Oaboard | 3 |
| Alkacon | Oamp Comments | 1 |
| Oar Project | Oar | 1 |
| Apc | Oas | 1 |
| Oasis-open | Oasis Digital Signature Services | 1 |
| Oasys Project | Oasys | 1 |
| Onlinetechtools.com | Oasys Lite | 1 |
| Onlinetechtools.com | Oasys Professional | 1 |
| Nongnu | Oath Toolkit | 1 |
| Oauth-ruby Project | Oauth-ruby | 1 |
| Owncloud | Oauth2 | 1 |
| Oauth2-server Project | Oauth2-server | 4 |
| Oauth2 Proxy Project | Oauth2 Proxy | 2 |
| Oauth2orize-fprm Project | Oauth2orize-fprm | 1 |
| Apifest | Oauth 2.0 Server | 2 |
| Google | Oauth Client Library For Java | 1 |
| Dash10 | Oauth Server | 1 |
| Jupyter | Oauthenticator | 1 |
| Brickom | Ob-100ae | 2 |
| Barackobama | Obama For America | 1 |
| Ubuntu Developers | Obby | 1 |
| Oblius | Obedit | 1 |
| Polycom | Obihai Obi1022 Firmware | 1 |
| O.bike | Obike-stationless Bike Sharing | 1 |
| Fireblink | Object-collider | 1 |
| Object-extend Project | Object-extend | 1 |
| Mjpclab | Object-hierarchy-access | 1 |
| Object-path Project | Object-path | 2 |
| Skratchdot | Object-path-set | 1 |
| Objectfirst | Object First | 3 |
| Doctrine-project | Object Relational Mapper | 1 |
| Objective Open Cbor Run-time Project | Objective Open Cbor Run-time | 1 |
| Objectivity | Objectivity\/db | 1 |
| Objectledger | Objecttoken | 2 |
| Aobosoft | Oblog | 6 |
| Dootzky | Oblog | 6 |
| Odelao | Obophix | 1 |
| Onelook | Oboshop | 1 |
| Obottle Project | Obottle | 2 |
| Obs-server | Obs-server | 1 |
| IBM | Observability With Instana | 2 |
| Project-observer | Observer | 1 |
| Observium | Observium | 20 |
| Obsidian | Obsidian | 9 |
| Plesk | Obsidian | 9 |
| Obsidian | Obsidian Dataview | 1 |
| Obstack Project | Obstack | 1 |
| Obtcoin Project | Obtcoin | 1 |
| Obyte | Obyte | 1 |
| Gigabyte | Oc Guru Ii | 4 |
| Inria | Ocaml | 5 |
| Ocaml | Ocaml | 5 |
| Ocaml Batteries Project | Ocaml Batteries | 1 |
| Nicolas Cannasse | Ocaml Xml-light Library | 1 |
| Occlum Project | Occlum | 1 |
| Canon | Oce Colorwave 3500 Firmware | 1 |
| Canon | Oce Colorwave 500 Firmware | 5 |
| Canon | Oce Print Exec Workgroup | 2 |
| OceanWP | Ocean Extra | 7 |
| Unknown | Ocean Extra | 7 |
| Oceanwp | Ocean Extra | 7 |
| Huawei Technologies Co., Ltd. | OceanStor 2800 V3,OceanStor 5300 V3,OceanStor 5500 V3,OceanStor 5600 V3,OceanStor 5800 V3 | 1 |
| Huawei Technologies Co., Ltd. | OceanStor 5800 V3, OceanStor 6900 V3 | 1 |
| Huawei | OceanStor SNS3096 | 1 |
| Oceanavenue | Ocean Avenue Mobile Pro | 1 |
| Oceanwp | Ocean Extra | 1 |
| Code Ocean | Ocean Ftp Server | 1 |
| Huawei | Ocean Stor Firmware | 1 |
| Oceandir | Oceandir | 1 |
| Huawei | Oceanstor 18500 Firmware | 1 |
| Huawei | Oceanstor 18800 Firmware | 1 |
| Huawei | Oceanstor 18800f Firmware | 1 |
