
DrinkOrDie (DoD) was one of the most prestigious underground software piracy group and warez trading network during the 1990s. On 11 December 2001 a major law enforcement raid - known as Operation Buccaneer - forced it to close under criminal charges of infringement. DoD, as a rule, received no financial profit for their activities. The DoD network - which primarily consisted of university undergraduates - was also supported by software company employees, who leaked copies of software and other digital media. DoD was also actively involved in illicit file-trading with other networks.

FairLight (FLT) is a warez and demo group initially involved in the Commodore demoscene, and in cracking to illegally release games for free, since 1987. In addition to the C64, FairLight has also migrated towards the Amiga, Super NES and later the PC. FairLight was founded during the Easter holiday in 1987 by Strider and Black Shadow, both ex-members of West Coast Crackers (WCC). This "West Coast" was the west coast of Sweden, so FairLight was initially a Swedish group, which later became internationalized. The name was taken from the Fairlight CMI synthesizer which Strider saw Jean-Michel Jarre use on some of his records.

PARADOX (PDX) is a warez–demogroup; an anonymous group of software engineers that devise ways to defeat software and video game licensing protections, a process known as cracking, which is illegal in most jurisdictions. They distribute cracks, keygens, and pre-cracked versions of entire programs. Over the years, distribution methods have changed, starting out with physically transported floppy disks and BBS distribution. Today most of their files reach the public over various peer-to-peer file networks.

Pirates With Attitudes (PWA) was a major international warez release group between 1992 and 2000. The group was established by two former International Network of Crackers members known by the pseudonyms Orion and BarManager. PWA was also very well known during the tail end of the BBS-era for their development of modifications and enhancements ("mods") for the PCBoard BBS software.

Rabid Neurosis (RNS) was an MP3 warez release organization which was founded in 1996, following in the footsteps of Compress 'Da Audio (CDA), the first MP3 piracy group. In 1999, the group claimed to have released over 6,000 titles a year. RNS occasionally used the tagline "Rabid Neurosis - Spread The Epidemic." RNS were best known for releasing highly anticipated albums by hip hop, pop, rock and dance artists weeks and sometimes months before their official release date. RNS is known to have greatly contributed to the mp3 scene.

Razor 1911 (RZR) is a warez and demogroup founded in Norway, 1986. It was the first ever such group to be initially founded exclusively as a demogroup, before moving into warez in 1987. According to the US Justice Department, Razor 1911 is the oldest software cracking group that is still active on the internet. Razor 1911 ran the diskmag 'Propaganda' until 1995.

Superior Art Creations (SAC) is an underground artscene group which caters primarily to and is well known within the warez scene. SAC members have made, besides ANSI and ASCII art, VGA bitmap graphics, tracker music, and a variety of other works. SAC's character graphics have also been used in bottles and FTP servers.