SmartOS is an open-source UNIX-like operating system based on illumos, a community fork of OpenSolaris. It features four technologies - ZFS (a combined file system and logical volume manager), DTrace (a dynamic tracing framework for troubleshooting kernel and application problems), Zones (a lightweight virtualisation solution), KVM and bhyve (two full virtualisation solutions for running a variety of guest operating systems, including Linux, Windows, BSD and Plan9). SmartOS is designed to be particularly suitable for building clouds and generating appliances.

XIVA Studio is a multimedia-oriented Linux distribution derived from Manjaro Linux and BigLinux. It's main goal is to cater to the needs of professional creators in the area of video, audio, graphics and animation production. XIVA Studio provides optimised Linux kernels built for a number of popular processor and graphics cards configurations. It uses KDE Plasma as the default desktop environment.

Linuxfx is a Brazilian Linux distribution based on Ubuntu. It ships with an intuitive Cinnamon desktop user interface designed to facilitate migration of users from Windows. It includes a video management system called Sentinela, a computer vision software with video analytics and software for access control (facial recognition and automatic number plate recognition), object detection, gender, age and mood detection. Other features of the distribution include a new personal assistant, a WX theme for desktop and system applications, and compatibility with software written for Windows (.exe and .msi) through a Wine port. Following the release of Linuxfx 10.6 the distribution became a commercial offering.

CentOS as a group is a community of open source contributors and users which started in 2003 and has been sponsored by Red Hat since 2014. CentOS Linux versions up to CentOS Linux 8 are 100% compatible rebuilds of Red Hat Enterprise Linux, in full compliance with Red Hat's redistribution requirements. In 2020 it was announced CentOS Linux is being discontinued and replaced with CentOS Stream, a developer-focused distribution which acts as a middle-stream between Fedora and Red Hat Enterprise Linux.

The Amnesic Incognito Live System (Tails) is a Debian-based live DVD/USB with the goal of providing complete Internet anonymity for the user. The product ships with several Internet applications, including web browser, IRC client, mail client and instant messenger, all pre-configured with security in mind and with all traffic anonymised. To achieve this, Incognito uses the Tor network to make Internet traffic very hard to trace.

Flatcar Container Linux is a container-optimized operating system based on Gentoo Linux. It is a minimal operating system image which includes only the tools needed to run containers and it supports all of the popular methods for running containers. The distribution ships an immutable filesystem and includes automatic atomic updates. Flatcar Container Linux runs on most cloud providers, virtualization platforms and bare metal servers.

Nitrux is a desktop Linux distribution built from Debian, but with an immutable base system, the OpenRC init system, and without any traditional Debian package management tools. It uses the Calamares system installer and includes the Hyprland window manager, Hypr utilities, the greetd+QtGreet login manager, and the Waybar Wayland bar. Nitrux emphasizes the use of AppBox to manage end-user software and it also supports AppImage and Flatpak package formats.

Blade OS is a desktop-oriented Linux distribution based on Debian's "Stable" branch. It uses the GNOME desktop. The distribution's main features include a pre-configured desktop with useful applications pre-installed, the Calamares system installer, out-of-the-box support for Flatpak packages, and beginner-friendly documentation on the project's website.

SparkyLinux is a lightweight, fast and simple Linux distribution designed for both old and new computers featuring customised Enlightenment and LXDE desktops. It has been built on the "testing" branch of Debian GNU/Linux.

Slimbook OS is an Ubuntu-based Linux distribution customised for the Slimbook line of Linux computers assembled in Spain. It offers a choice of GNOME or KDE Plasma desktops on a single ISO image which also includes some custom extensions and utilities. The distribution provides its own repositories for some software, prioritising DEB and Flatpak packages over Ubuntu's snap options. Some of the other interesting features of Slimbook OS include touchpad gestures (enabled by default), Slimbook service notifications, window tiling, the Terminator terminal emulator, a Ulauncher application for fast searching, and a day/night mode switcher.

Volumio (formerly RaspyFi) is a Debian-based Linux distribution designed and fine-tuned exclusively for music playback. It runs on a variety of devices, typically small and cheap computers like the Raspberry Pi, but also on low-power personal computers, notebooks or thin clients. It aims to fully integrate Music Player Daemon, an open-source music player server, into the current Debian releases and to optimise it for Audiophile-quality music playback. Volumio also makes it simple to play music library directly from a USB storage device or from any network-attached storage and it also enables users to listen to web-based radio stations from Spotify, Last.fm and SoundCloud.

DESERT OS Linux is a Russian desktop Linux distribution based on Ubuntu and featuring the Xfce desktop. It supports Pacstall, a package manager inspired by Arch's AUR and capable of creating native Ubuntu DEB packages from source and binary packages, git repositories, AppImage apps, release artifacts and non-Ubuntu DEB packages. The distribution also offers out-of-the box support for Flatpak packages.

Tribblix is a general-purpose operating system derived from OpenSolaris, OpenIndiana and illumos. The base kernel and commands come from illumos, with everything else rebuilt from scratch. It is a traditional system where software is distributed as SVR4 packages and lightweight window managers are preferred over heavy desktop environments. Xfce is the primary desktop option, with MATE, Enlightenment and various window managers also available for installation. While Tribblix inherits many of the key illumos technologies, such as ZFS, zones, DTrace and SMF, it uses its own build and packaging system.

PorteuX is a Linux distribution based on Slackware Linux, inspired by Slax and Porteus and available to the public for free. Its main goal is to be fast, small, portable (run from a thumb drive), modular and optionally immutable. It is pre-configured for basic usage, including lightweight applications for each one of the seven desktop environments (Cinnamon, GNOME, KDE Plasma, LXDE, LXQt, MATE and Xfce) available. No browser is included, but an app store is provided for downloading any of the most popular browsers, as well as other applications.

MX Linux, a desktop-oriented Linux distribution based on Debian's "Stable" branch, is a cooperative venture between the antiX and former MEPIS Linux communities. Using Xfce as the default desktop (with separate KDE Plasma and Fluxbox editions also available), it is a mid-weight operating system designed to combine an elegant and efficient desktop with simple configuration, high stability, solid performance and medium-sized footprint.

ObsidianOS is a set of Linux distribution based primarily on Arch Linux. Its main feature is an A/B partition style (as used by Android or Chrome OS) so if an update causes some issues, it is possible to reboot into the first partition and restore the second one. It uses the ext4 filesystem exclusively. ObsidianOS offers several variants of the product - the "Base", "KDE Plasma" and "COSMIC" editions are all based on Arch Linux, while a separate "Void" flavour, without any graphical user interface, is based on Void.

GXDE OS is a desktop-oriented Linux distribution that combines Debian with Deepin Desktop Environment (DDE), developed by the deepin project. It is based on Debian's "Testing" branch. It ships with up-to-date Linux kernel, base system and applications, and it includes a "Spark Store", a software application marketplace with support for Android applications. The distribution is available for the aarch64 and x86_64 processor architectures.

Calculate Linux is a Gentoo-based family of three distinguished distributions. Calculate Directory Server (CDS) is a solution that supports Windows and Linux clients via LDAP + SAMBA, providing proxy, mail and Jabbers servers with streamlined user management. Calculate Linux Desktop (CLD) is a workstation and client distribution (with a choice of Cinnamon, KDE Plasma, LXQt, MATE or Xfce desktops) that includes a wizard to configure a connection to Calculate Directory Server. Calculate Linux Scratch (CLS) is a live CD with a build framework for creating a custom distribution.

FreeBSD is a UNIX-like operating system for the i386, amd64, IA-64, arm, MIPS, powerpc, ppc64, PC-98 and UltraSPARC platforms based on U.C. Berkeley's "4.4BSD-Lite" release, with some "4.4BSD-Lite2" enhancements. It is also based indirectly on William Jolitz's port of U.C. Berkeley's "Net/2" to the i386, known as "386BSD", though very little of the 386BSD code remains. FreeBSD is used by companies, Internet Service Providers, researchers, computer professionals, students and home users all over the world in their work, education and recreation. FreeBSD comes with over 20,000 packages (pre-compiled software that is bundled for easy installation), covering a wide range of areas: from server software, databases and web servers, to desktop software, games, web browsers and business software - all free and easy to install.

StartOS is a Debian-based Linux distribution optimised for personal servers. It facilitates the discovery, installation, network configuration, service configuration, data backup, dependency management and health monitoring of self-hosted software services. After installation, the distribution boots into a Firefox browser with several services pre-installed and others, including various Bitcoin, communication, data and artificial intelligence services available from the project's online marketplace. The server can be accessed locally or from anywhere in the world via Tor network's Onion service. The distribution is developed by Start9 Labs, Inc.

HackerOS is a live Linux distribution based on Debian's "Testing" branch and designed for regular users, gamers and cybersecurity enthusiasts. Some of its features include an optimised XanMod Linux kernel for faster boot times and reduced resource usage, out-of-the-box support for NVIDIA graphics cards, and a collection of cybersecurity tools, such as enhanced firewalls and intrusion detection software. The distribution uses the KDE Plasma desktop.

Endless OS is a Linux-based operating system which provides a simplified and streamlined user experience using a customized desktop environment forked from GNOME 3. Rather than using a traditional Linux package management system, Endless OS uses a read-only root filesystem managed by OSTree with application bundles overlaid on top.

Luberri Linux is a desktop-oriented distribution based on Linux Mint, with Cinnamon as the preferred desktop. It is localised into the Basque language and is primarily intended for the Basque-speaking users, although it supports the Spanish language as well. Luberri Linux is especially appropriate for use in educational institutions as it includes five years of support, regular updates, integration with Active Directory on Windows, and a vast range of applications suitable for learning varied subjects, such as typing, chemistry, geography, mathematics, programming, or mind and concept maps.

TUXEDO OS is an Ubuntu-based distribution developed in Germany by TUXEDO Computers GmbH, designed and optimised for the company's own range of Linux-friendly personal computers and notebooks. The distribution uses KDE Plasma as the preferred desktop. Some of the differences between Ubuntu and TUXEDO OS include custom boot menu, the TUXEDO Control Centre, Calamares installer, availability of the Lutris open gaming platform, preference for the PipeWire audio daemon (over PulseAudio), removal of Ubuntu's snap daemon and snap packages, and various other tweaks and enhancements.