| Danny Nelson |
1992 - |
HYDROCEPHALIC, MORTAL DECAY |
| Ron Kachnic |
1996 - |
MORTICIAN, DIRTY BROWN EYE, PRIMER BLACK |
| Mike Heller |
2004 - |
FEAR FACTORY, RAVEN, SYSTEM DIVIDE, DISEMBOWEL, KALOPSIA, WORLD UNDER BLOOD, AILLAH, AZURE EMOTE, CONTROL/RESIST, SUCCESS WILL WRITE APOCALYPSE ACROSS THE SKY |
| Monty Mukerji |
2013 - |
MORTAL DECAY, POLTERCHRIST, ETHEREAL |
| Roger J. Beaujard |
1996 - 2003 ; 2009 - 2013 |
MORTICIAN, PRIMITIVE BRUTALITY, PROSTHETIC CUNT, GRIND.BOT |
| Lance Snyder |
1996 - 1996 ; 2001 - 2008 |
|
| Desmond Tolhurst |
1997 - 2001 |
MORTICIAN, HEAD TRAUMA, PRIMER BLACK |
| Kevin Hughes |
1996 - 1996 |
|
| John Marzan |
1992 - 1996 |
ASPHYXIATION, DARK EDEN, VERMEFÜG |
| Javier Velez |
1992 - 1995 |
|
| Frank Madiao |
1992 - 1995 |
|
| Ralph Blanco |
1994 - 1995 |
|
| Tom Domey |
1992 - 1992 |
|
| Larry Demlin |
1992 - 1992 |
|
| Kevin Chamberlain |
1992 - 1992 |
|
