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View CSI Linux's top competitors like BackBox.org, BlackArch Linux, and Fedora Project.

Fedora Project
The Fedora Project is open and anyone is welcome to join. Fedora is a Linux-based operating system that showcases the latest in free and open source software. Fedora is always free for anyone to use, modify, and distribute. It is built by people across the globe who work together as a community: the Fedora Project.
Plymouth, Minnesota, US
Non profit
$100M Revenue
https://fedoraproject.org
284 Employees
The Metasploit Project
The Metasploit Project, a Rapid7 Open Source Project, provides useful information to people who perform penetration testing, IDS signature development, and exploit research. This project was created to provide information on exploit techniques and to create a useful resource for exploit developers and security professionals.
Austin, Texas, US
Private
http://www.metasploit.com
17 Employees
Kali Linux
Creating, developing and maintaining the Kali Linux penetration testing distribution while keeping it open-source and free for all.
New York City, New York, US
Non profit
http://www.kali.org
362 Employees
G2 Leader Summer 2026 G2 Best Est ROI Mid-Market Summer 2026 G2 Easiest Admin Mid-Market Summer 2026 G2 Most Implementable Summer 2026 G2 Best Results Mid-Market Summer 2026 G2 Lead Capture Mid-Market Summer 2026 Inc Fastest Growing Private Companies 2026 Inc Best Workplace 2026
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300K+ Plugin Users