| Luc Lemay |
1989 - 2005 ; 2008 - |
NEGATIVA |
| Colin Marstonay |
2009 - |
BEHOLD... THE ARCTOPUS, BYLA, DYSRHYTHMIA, KRALLICA, INDRICOTHER |
| Kevin Hufnagel |
2009 - |
BYLA, VAURA, DYSRHYTHMIA, WHILE HEAVEN WEPT, Kevin Hufnagel, EUCLID STREET, GREY DIVISION BLUE, THE FIFTH SEASON |
| John Longstreth |
2009 - 2014 |
ORIGIN, SKINLESS, ANGELCORPSE, EXHUMED, THE RED CHORD, MALEFIC THRONE, MURDER CONSTRUCT |
| Steve Cloutier |
1993 - 2004 |
DAMAGED, PSYCHICTHROB |
| Daniel Mongrain |
1999 - 2001 |
VOIVOD, MARTYR, CRYPTOPSY, BLACK CLOUD, CAPHARNAUM |
Steve MacDonald ( 2002) |
1993 - 1995 ; 1998 - 2002 |
SADICTIC VISION, ASGARD |
| Steeve Hurdle ( 2012) |
1993 - 1999 |
NEGATIVA, PURULENCE |
| Patrick Robert |
1996 - 1998 |
NEGATIVA |
| Stéphane Provencher |
1989 - 1993 |
DAMAGED |
| Sylvain Marcoux |
1989 - 1993 |
DEADLY MANOVER |
| Eric Giguere |
1990 - 1993 |
|
| Gary Chouinard |
1989 - 1990 |
|
| Carlo Gozzi |
1989 - 1989 |
INSANITY, BLAYLÖK |
