| AlmaLinux | Andrew Lukoshko | — | — |
| AstraOS | — | — | — |
| BlackArch Linux | — | — | 3-clause BSD License |
| Bliss OS | — | — | GNU General Public License, version 3.0 |
| CentOS Stream | Red Hat, IBM | 2019 | GNU General Public License |
| Darwin | Apple Inc. | 2000 | Apple Public Source License |
| Debian | The Debian Project | 1993 | GNU General Public License |
| Haiku | Michael Phipps, Haiku Inc. | 2002 | MIT License |
| MacOS | Apple Inc. | 2001 | BSD licenses, proprietary license, Apple Public Source License |
| MacOS Big Sur | Apple Inc. | 2020 | proprietary license, Apple Public Source License |
| MacOS Monterey | Apple Inc. | 2021 | proprietary license, Apple Public Source License |
| Manjaro | Philip Müller | 2011 | free software |
| OpenBSD | OpenBSD Project, Theo de Raadt | — | ISC license |
| Oracle Linux | Oracle Corporation | 2006 | GNU General Public License |
| Pop!_OS | System76 | 2017 | GNU General Public License |
| PureOS | Purism | — | Creative Commons Attribution-ShareAlike 4.0 International |
| Q4OS | — | 2013 | GNU General Public License |
| Red Hat Enterprise Linux | Red Hat | 2002 | — |
| RED OS | — | — | commercial software |
| Resurrection Remix OS | — | 2012 | — |
| Rocky Linux | Rocky Enterprise Software Foundation | — | 3-clause BSD License |
| RouterOS | MikroTik | — | — |
| Sailfish OS | Jolla | — | — |
| Tizen | Intel, Linux Foundation, Samsung Group, Tizen Association | — | Apache Software License 2.0, Flora License |
| Trisquel | — | 2007 | GNU General Public License, version 3.0 |
| Ubuntu Server Edition | Canonical Ltd. | 2006 | GNU General Public License |
| VibeOS | — | 2025 | MIT License |
| Whonix | — | 2012 | GNU General Public License |
| YunoHost | — | — | GNU Affero General Public License, version 3.0 |