Early Groups
- Bentley Sidwell Productions [BSP; 1988, 1991]
- Crackers in Action [CIA; 1988–1989]
- FiRM [1989–1992, 1994]
- The Humble Guys [THG; 1990–1994]
- International Network of Crackers [INC; 1989–1994, 1996]
- Miami Cracking Machines [MCM; 1986/1987–1989]
- New York Crackers [NYC; 1989–1990]
- North American Pirate-Phreak Association [NAPPA; 1989–1990]
- North American Society of Anarchists [NASA; 1990]
- PTL Club [PTL; 1987–1990]
- Public Enemy [PE; 1989–1993]
Golden Age
- Pentagram [PTG; 1993]