A
- Above the Law [1990–1992]; WHQ BBS for INC
- Absolute Revolt [1990]; BBS for FirM
C
- The Crack in Time [1990–1994]; BBS for THG
D
- Dark Domain [1988–1991]; BBS for INC
- The Devil [1990]; sysop The Evil Empire for PE
E
- The Evil Palace [1990–1992]; BBS for PE
F
- FiRM [1989–1991, 1992, 1994]; group
G
- Ghost Rider [1990]; sysop The Evil Empire for PE
H
- The Humble Guys (THG) [1990–1994]; group
I
- Illuminator [1990]; sysop Absolute Revolt
- International Network of Crackers (INC) [1989–1994, 1996]; group
L
- Line Noise [1990]; sysop Star Frontiers; founder INC
N
- New York Crackers (NYC) [1989–1990]; group
- Nuclear Wasteland [1990]; BBS for INC
O
- The Oxidizer [1990]; sysop Nuclear Wasteland; member INC
P
- Piro [1990]; sysop Absolute Revolt
- Public Enemy (PE) [1990–1993]; group
- The Punisher [1989–1994]; sysop The Crack in Time for THG
S
- Star Frontiers [1990]; WHQ BBS for INC
T
- Time Lord [1990]; sysop Time Pirates II; member INC
- Time Pirates II [1990]; BBS for INC
V
- Vigilianti [1990–1991]; sysop Above the Law; founder INC
Z
- The Zenabyte [1988–1991]; sysop Dark Domain for INC