Adriano Marangon de Lima
2017 - 2020
José Roberto Zucolotto Moura
2013 - 2016
Jânio Ivan Andreatta
2009 - 2012
Jânio Ivan Andreatta
2007 - 2008
Clóvis Poletto
2007
Vilmar A. Hernandes
2005 - 2007
Vilmar A. Hernandes
2001 - 2004
Jandir Quevedo Andreatta
1997 - 2000
Vilmar A. Hernandes
1993 - 1996
Jorge M. V. Leal
1989 - 1992
Jandir Quevedo Andreatta
1983 - 1988