| seit 2024 | Michael Johner |
| 2021 – 2023 | Uwe Kling |
| 2019 – 2020 | Jerzy Cielecki |
| 2017 – 2018 | Wolfram Stifel |
| 1999 – 2017 | Uwe Kling |
| 1996 – 1999 | Peter Binder |
| 1992 – 1995 | Günther Armschat |
| 1977 – 1992 | Jürgen Kiene |
| 1976 | Werner Reuter |
| 1975 | Alfred Franke |
| 1974 | Prof. Staton |
| 1968 – 1973 | Werner Reuter |
| 1953 – 1967 | MD Hans Grotz |
| 1948 – 1952 | Otto Daiker |
| 1919 – 1940 | Friedrich Maier |