| Fischer Claus | 1977 | 1988 |
| Guggenmos Albert | 1988 | 1993 |
| Martin Margot | 1993 | 2000 |
| Volk Wolfgang | 2000 | 2012 |
| Karg Markus | 2012 | 2015 |
| Edenhofer Veronika | 2015 | 2021 |
| Maier Hubert | 2021 | 2024 |
| Niggl Nadine | 2024 |
| Fischer Claus | 1977 | 1988 |
| Guggenmos Albert | 1988 | 1993 |
| Martin Margot | 1993 | 2000 |
| Volk Wolfgang | 2000 | 2012 |
| Karg Markus | 2012 | 2015 |
| Edenhofer Veronika | 2015 | 2021 |
| Maier Hubert | 2021 | 2024 |
| Niggl Nadine | 2024 |