| AntiX | — | — | GNU General Public License |
| Debian GNU/kFreeBSD | — | — | GNU General Public License |
| DerrickOS | Jozef Bogin | — | — |
| Element OS | — | — | — |
| Freedows OS | — | — | — |
| Frugalware Linux | Miklós Vajna | — | GNU General Public License |
| Gobuntu | Canonical Ltd. | 2007 | GNU General Public License |
| Guadalinex | Government of Andalusia | — | GNU General Public License |
| Illumos | — | — | Common Development and Distribution License version 1.0 |
| JavaOS | Sun Microsystems | — | proprietary license |
| Linux Mint | — | 2006 | GNU General Public License |
| Linux Unified Kernel | — | — | GNU General Public License, version 2.0 |
| Lunar Linux | — | — | GNU General Public License |
| Mac OS X Leopard | Apple Inc. | 2007 | Apple Public Source License, end-user license agreement |
| Mac OS X Snow Leopard | Apple Inc. | 2009 | Apple Public Source License |
| Mac OS X Tiger | Apple Inc. | 2005 | — |
| MenuetOS | — | — | proprietary license, GNU General Public License, version 2.0 |
| MEPIS | Warren Woodford | — | GNU General Public License |
| Midori | Microsoft | — | — |
| Musix GNU/Linux | — | — | — |
| OpenBSD | OpenBSD Project, Theo de Raadt | — | ISC license |
| OpenMediaVault | Volker Theile | 2009 | GNU General Public License, version 3.0 |
| Parabola GNU/Linux-libre | — | — | GNU General Public License |
| Solaris | Sun Microsystems, Oracle Corporation | 1991 | proprietary license |
| SparkyLinux | — | — | GNU General Public License |
| Tails | The Tor Project, Inc | 2009 | GNU General Public License v3.0 or later |
| Ubuntu Budgie | — | — | GNU General Public License |
| Ubuntu Netbook Edition | Canonical Ltd. | — | GNU General Public License |
| Ubuntu Server Edition | Canonical Ltd. | 2006 | GNU General Public License |
| Windows 10 | Microsoft | 2015 | shareware, Microsoft Software Assurance, Azure Dev Tools for Teaching |
| Windows 7 | Microsoft | 2009 | volume licensing, Microsoft Software Assurance, end-user license agreement |
| Windows 8 | Microsoft | 2012 | end-user license agreement |
| Windows 8.x | Microsoft | 2012 | — |
| Windows 98 | Microsoft | 1998 | Microsoft Software Assurance, proprietary license |
| Windows NT | Microsoft | 1993 | — |
| Windows Vista | Microsoft | — | end-user license agreement |
| Windows XP | Microsoft | — | volume licensing, shareware, Microsoft Software Assurance |
| Xinuos OpenServer | Santa Cruz Operation, Xinuos | — | proprietary license |