| 1919 - 1923 | Paul Erni |
| 1924 - 1926 | Robert Erni |
| 1927 - 1934 | Hans Wüthrich |
| 1935 - 1936 | Hans Kiener |
| 1937 - 1942 | Leo Grüter |
| 1943 - 1943 | Zucchini Luigi |
| 1944 - 1950 | Josef Schaller |
| 1951 - 1954 | Franz Häfliger |
| 1955 - 1959 | Luigi Zucchini |
| 1960 - 1961 | Josef Lötscher |
| 1962 - 1967 | Werner Sommer |
| 1968 - 1978 | Pius Staufer |
| 1979 - 1984 | Anton Rölli |
| 1985 - 1986 | Anton Langerstein |
| 1987 - 1992 | Franz Thalmann |
| 1993 - 2004 | Hansueli Wyss |
| 2005 - 2010 | Stefan Aregger |
| 2011 - 2014 | Josef Erni |
| 2015 - | Ruedi Stadelmann |