IPFire is a Linux distribution that focuses on easy setup, good handling and high level of security. It is operated via an intuitive web-based interface which offers many configuration options for beginning and experienced system administrators. IPFire is maintained by developers who are concerned about security and who update the product regularly to keep it secure. IPFire ships with a custom package manager called Pakfire and the system can be expanded with various add-ons.

Fedora Linux (formerly Fedora, formerly Fedora Core) is a Linux distribution developed by the community-supported Fedora Project and owned by Red Hat. Fedora Linux contains software distributed under a free and open-source license and aims to be on the leading edge of such technologies. Fedora has a reputation for focusing on innovation, integrating new technologies early on and working closely with upstream Linux communities. The default desktop in Fedora Linux is the GNOME desktop environment and the default interface is the GNOME Shell. Other desktop environments, including KDE, Xfce, LXDE, MATE and Cinnamon, are available. The Fedora project also distributes custom variations of Fedora called Fedora spins. These are built with specific sets of software packages, offering alternative desktop environments or targeting specific interests such as gaming, security, design, scientific computing and robotics.

Live Raizo is a live Linux distribution based on Debian "Stable". It's purpose is to experiment with system administration on simulated networks and real devices; it contains simulators of networks and systems (GNS3, QEmu, Docker, VPCS) and also Debian virtual machines already integrated into GNS3. Live Raizo also includes tools to interact with real devices, such as minicom, Putty, Wireshark, as well as DHCP, DNS, FTP, TFTP and SSH servers. The distribution uses the Fluxbox window manager and can optionally be installed to a hard drive.

LinuxCNC is a Debian-based Linux distribution designed to control computer numerical control (CNC) machines. It can drive milling machines, lathe machines, 3D printers, laser cutters, plasma cutters, robot arms, hexapods and more. It is compatible with many popular machine control hardware interfaces and it supports rigid tapping, cutter compensation, and many other advanced control features. LinuxCNC boots into an Xfce desktop with a custom CNC menu containing CNC software, wizards and documentation.

Qubes OS is a free and open-source, security-oriented operating system for single-user desktop computing. Qubes OS leverages Xen-based virtualization to allow for the creation and management of isolated compartments called qubes. These qubes, which are implemented as virtual machines (VMs). This allows each component of the operating system to be isolated from other pieces, preenting compromises from spreading or information from leaking.

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.

OpenIndiana is a continuation of the OpenSolaris operating system. It was conceived during the period of uncertainty following the Oracle takeover of Sun Microsystems, after several months passed with no binary updates made available to the public. The formation proved timely, as Oracle discontinued OpenSolaris soon after in favour of Solaris 11 Express, a binary distribution with a more closed development model to début later this year. OpenIndiana is part of the illumos Foundation, and provides a true open-source community alternative to Solaris 11 and Solaris 11 Express, with an open development model and full community participation.

MagOS Linux is a Russian desktop-oriented distribution based on ROSA, a distribution that was forked from Mandriva Linux in 2011. It uses the RPM package management. MagOS Linux comes with KDE Plasma desktop by default, but it also ships the lightweight LXQt desktop for older and low-specification computers. Besides the standard upstream packages from ROSA, the project also provides its own RPM package repository (with various network and NVIDIA display drivers), as well as separate modules (in XZM format) with extra hardware drivers, server tools, MATE desktop, Wine emulator, Java software and additional web browsers, including Chromium and Yandex.

LinuxHub Prime is an Arch-based Linux distribution with a customised Openbox window manager as the default desktop environment. Its main feature is a unique installer that provides one-click installation options for several popular window managers and desktop environments, including Awesome, bspwm, Budgie, Cinnamon, Deepin, GNOME, Hyprland, KDE Plasma, MATE, Qtile and Xfce. The installer also includes "Prime Builder", a tool for creating a custom respin of the distribution.

Planeta Tecno OS is a Uruguayan Linux distribution based on Debian's "Stable" branch, featuring the MATE desktop (with an Xfce-based alternative available separately). It focuses on providing a variety of artificial intelligence (AI) tools, such as Gemini, Copilot and ChatGPT, and it also includes an AI management application and direct access to chatbots from the taskbar. The distribution integrates the WINE compatibility layer for running Windows software, together with Winetricks utilities, Lutis open gaming platform, and Steam store. Planeta Tecno OS also develops a custom system administrator tool with the ability to update, clean and repair the system.

Security Onion is a specialist, security-oriented Linux distribution based on Oracle Linux. It is a free and open platform for threat hunting, enterprise security monitoring and log management. It includes custom interfaces for alerting, dashboards, hunting, PCAP, detections and case management. It also includes other tools, such as osquery (a tool for exploring and monitoring operating system data with SQL queries), CyberChef (a web application for encryption, encoding, compression and data analysis), Elasticsearch (a data search engine), Logstash (a data collection and processing engine), Kibana (a data visualization plugin for Elasticsearch), Suricata (an intrusion detection and prevention system) and Zeek (a software network analysis framework).

Vinari OS is a desktop Linux distribution based on Debian's "Stable" branch and featuring a customised GNOME desktop. Some of its more interesting features include the Calamares system installer, the GSConnect phone-pairing application, out-of-the-box support for Flatpak packages, support for both UEFI and BIOS boot, and a beginner-friendly default configuration that does not require the use of the terminal.

LazyLinux is a Void-based desktop Linux distribution with Xfce as the preferred desktop and a vast collection of pre-installed software. It intends to be user-friendly and usable right after installation. The distribution ships with many popular productivity and multimedia applications, such as Brave browser, Thunderbird email client, LibreOffice office suite, GIMP image manipulation program, Inkscape vector graphics editor, VLC media player and many others. LazyLinux also provides out-of-the-box support for Flatpak packages.

Quarkos is a desktop Linux distribution based on Ubuntu's long-term support branch, with a choice of two user interfaces - the modern KDE Plasma desktop or the lightweight Trinity desktop environment (a fork of KDE 3.5). It is a sister project of the Debian-based Q4OS distribution.

DietPi is a Debian-based Linux distribution, primarily developed for single-board computers such as Raspberry Pi, Orange Pi or Odroid. It also supplies builds for 64-bit x86 personal computers and virtual machines, including VMware, VirtualBox, UTM, Hyper-V, Proxmox and Parallels. The base installation of DietPi comes without any desktop, but a desktop option can be activated via the built-in "dietpi-software" program. The distribution ships with a number of menu-driven configuration tools which can be run from the terminal.

HydraPWK GNU/Linux is a Debian-based distribution designed primarily for penetration testing. It contains a collection of penetration testing tools, including tools for information gathering, scanning, stress testing, exploitation, cracking, reversing engineering and forensics. Formerly known as BlackTrack, the distribution uses a real-time Linux kernel and features the Xfce desktop.

ChromeOS Flex, developed by Google, is a free and lightweight Linux distribution based on Gentoo-derived ChromeOS. Unlike ChromeOS which is designed specifically for Chromebook computers, ChromeOS Flex can be installed on most x86_64 devices with a AMD or Intel processors, offering a Chromebook-like experience. The product's functionality can be further extended by installing a Debian-based Linux subsystem with a complete Linux development environment. ChromeOS Flex is available as a BIN image that can be transferred to a bootable USB Flash drive; it can be used in a "live" mode or it can be permanently installed to a computer's hard disk.

KDE Linux is a user-focused, general-purpose Linux distribution. It is built by KDE and it is meant to showcase the best implementation of everything KDE has to offer, using the most advanced technologies. The distribution's base packages come from Arch Linux, while everything else is either compiled by the kde-builder tool or included as Flatpak packages. KDE Linux does not come with any traditional package manager, but supports installing Flatpak, Snap or AppImage applications. As it has an immutable base, system updates involve replacing the operating system image with an entirely new one.

The OpenBSD project produces a free, multi-platform BSD 4.4-based UNIX-like operating system. Its efforts emphasize portability, standardisation, correctness, proactive security and integrated cryptography. The project also develops the widely-used and popular OpenSSH (OpenBSD Secure Shell) software, which provides encrypted communication sessions over a computer network using the SSH protocol.

AlmaLinux OS is an open-source, community-driven project that is built from the source code of Red Hat Enterprise Linux (RHEL). AlmaLinux is a completely binary compatible fork of RHEL and it is maintained by AlmaLinux OS Foundation which is a register non-profit.

AgarimOS is a desktop Linux distribution based on Void. It comes in several popular desktop flavours, including Cinnamon, GNOME, KDE Plasma, LXQt, MATE and Xfce, all with a limited set of applications in their default states. Like its parent, AgarimOS does not use the systemd service manager, relying instead on the runit init scheme. It employs the XBPS package management system, together with a graphical front-end called OctoXBPS. The distribution also includes various optimisations, custom themes and some interesting software selection, such as the WezTerm terminal emulator, the Neofetch system information utility, the hBlock ad blocker, and the aria2 download tool.

Ultramarine Linux is a Fedora-based distribution featuring extra package repositories such as RPM Fusion and enabling multimedia codecs. Ultramarine can be considered a spiritual successor to Korora Project and aims to make Fedora a more desktop-friendly experience.

Clonezilla Live is a Debian-based live CD containing Clonezilla, a partition and disk cloning software similar to Norton Ghost. It saves and restores only used blocks in hard drive. With Clonezilla, one can clone a 5 GB system to 40 clients in about 10 minutes.

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.