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.

Bluestar Linux is a GNU/Linux distribution that is based on Arch Linux. The Bluestar distribution features up to date packages, a full range of desktop and multimedia software in the default installation and a live desktop DVD.

antiX is a fast, lightweight and easy-to-install Linux live CD distribution based on Debian's "Stable" branch for x86 compatible systems. antiX offers users the "antiX Magic" in an environment suitable for old computers. The goal of antiX is to provide a light, but fully functional and flexible free operating system for both newcomers and experienced users of Linux. It should run on most computers, ranging from 256 MB old PIII systems with pre-configured swap to the latest powerful boxes. 256 MB RAM is recommended minimum for antiX. The installer needs minimum 2.7 GB hard disk size. antiX can also be used as a fast-booting rescue CD, or run "live" on a USB stick, with or without persistent file storage.

OPNsense is a FreeBSD-based specialist operating system (and a fork of pfSense) designed for firewalls and routers. It is developed by Deciso B.V. in the Netherlands. Some of the features of OPNsense include forward caching proxy, traffic shaping, intrusion detection, two-factor authentication and easy OpenVPN client setup. The project's focus on security brings a number of unique features, such as the option to use LibreSSL instead of OpenSSL (selectable in the GUI). OPNsense also includes an update mechanism that delivers important security updates in a timely fashion.

Founded in 2014 by Oliver Pinter and Shawn Webb, HardenedBSD is a security-enhanced fork of FreeBSD. The HardenedBSD Project is implementing many exploit mitigation and security technologies on top of FreeBSD. The project started with Address Space Layout Randomization (ASLR) as an initial focal point and is now implementing further exploit mitigation techniques.

SysLinuxOS is a Debian-based GNU/Linux live distribution designed for system administrators and system integrators. It offers a complete networking environment that is organised to integrate various software tools and has a friendly graphical interface using the MATE and GNOME desktops. SysLinuxOS was built to work right out of the box, with all networking tools already installed by default. It includes all major Virtual Private Networks (VPNs), several remote control clients, various browsers, as well as WINE, Wireshark, Etherape, Ettercap, PackETH, Packet Sender, Putty, Nmap, Cutecom, Packet Tracer, tools for serial console, and the latest stable Linux kernel.

Parrot (formerly Parrot Security OS) is a Debian-based, security-oriented distribution featuring a collection of utilities designed for penetration testing, computer forensics, reverse engineering, hacking, privacy, anonymity and cryptography. The product, developed by Frozenbox, comes with MATE as the default desktop environment.

Zorin OS is an Ubuntu-based Linux distribution designed especially for newcomers to Linux. It has a Windows-like graphical user interface and many programs similar to those found in Windows. Zorin OS also comes with an application that lets users run many Windows programs. The distribution's ultimate goal is to provide a Linux alternative to Windows and let Windows users enjoy all the features of Linux without complications.

FydeOS, developed by China's Fyde Innovations, is a lightweight operating system that carries a Linux kernel, a browser platform and a container technology driver. It is very similar to Google Chrome OS in use. FydeOS supports the latest web application standards, and is able to run Android and Linux applications (by activating the included Android and Debian subsystems), providing a Google Chromebook-like experience. Users have a choice to use cloud services provided by Google, services powered by Fyde Innovations, or a local account. FydeOS is based on the open-source ChromiumOS and includes the Chromium browser; it is available free of charge for most standard Intel/AMD personal computers.

GParted Live is a live distribution with a single purpose - to provide tools for partitioning hard disks in an intuitive, graphical environment. The distribution uses X.Org, the light-weight Fluxbox window manager, and the latest 4.x Linux kernel. GParted Live runs on most x86 machines with a Pentium II or better.

Alpine Linux is a community developed operating system designed for routers, firewalls, VPNs, VoIP boxes, containers, and servers. It was designed with security in mind; it has proactive security features like PaX and SSP that prevent security holes in the software to be exploited. The C library used is musl and the base tools are all in BusyBox. Those are normally found in embedded systems and are smaller than the tools found in GNU/Linux systems.