1971 - 1972

Franz Fässler

1972 - 1977

Emil Schmid

1984 - 1988

René Krieg

1988 - 1990

Eveline Vicini

1990 - 1991

Ernst Schiegg (1968)

1991 - 1997

Eveline Schnyder-Vicini

1997 - 2000

Nicole Stock-Schlepfer (1975)

2000 - 2003

Bettina Haas-Martinez (1966)

2003 - 2008

Astrid Brülisauer-Sutter (1967)

2008 - 2011

Patrick Haltmann (1987)

2011 - 2015

Christina Aeschbacher (1983)

2015 -

Andreas Koller (1992)