2023 - Present

Mr. Rolf Blaser

2016 - 2022

Mrs. Marina Fernando

2014 to 2015

Mr. Selman Kabay

2009 to 2013

Mrs. Arlette Palmer

2000 to 2008

Mr. Thomas Daetwyler

1997 to 1999

Mrs. Katharina Twerenbold

1987 to 1996

Mr. Max Brechbühl

1985 to 1986

Mr. Walter Widmer

1979 to 1984

Mr. Guido Baumann

1977 to 1978

Mr. P. Wyss

1972 to 1976

Mr. E. Chanson

1971

Mr. M. Pannetti

1964 to 1970

Mr. E. Chanson

1963

Mr. T. W. Hoffmann

1962

Mr. H. Pfanner

1961

Mr. H. Sigg

1959 to 1960

Mr. H. Eichenberger

1958

Mr. W.J. Mumenthaler

1955 to 1957

Mr. T. W. Hoffmann

1953 to 1954

Mr. H. Eichenberger

1951 to 1952

Mr. C.R. Flückiger

1950

Mr. W. Marquart

1949

Mr. C.H. Tuetsch

1947 to 1948

Mr. A.O. Haller

1945 to 1946

Mr. C.R. Flückiger

1943 to 1944

Mr. F. E. Schmid

1942

Mr. A. M. Thalmann

1941

Mr. F. E. Schmid

1937 to 1940

Mr. A. Leiber

1933 to 1936

Mr. E.V. Cogliatti