| 1952 – 1987 |
Prof. Dr. Walter Adolf Jöhr, † 1987 |
| 1952 – 1968 |
Prof. Dr. Theo Keller, † 1980 |
| 1952 – 1981 |
Prof. Dr. Emil Küng, † 1992 |
| 1956 – 1958 |
Prof. Dr. Wilhelm Krelle, † 2004 |
| 1967 – 1992 |
Prof. Dr. Hans Christoph Binswanger, † 2018 |
| 1973 – 1978 |
Prof. Dr. Silvio Borner, em., University of Basel |
| 1977 – 1991 |
Prof. Dr. Bernd Schips, emeritiert, ETH Zürich |
| 1979 – 2003 |
Prof. Dr. Norbert Reetz, em., University of St.Gallen |
| 1981 – 2004 |
Prof. Dr. Kurt Dopfer, em., University of St.Gallen |
| 1981 – 1984 |
Prof. Dr. Ernst Baltensperger, em., Bern University |
| 1987 – 1990 |
Prof. Dr. Robert Leu, em., Bern University |
| 1988 – 1991 |
Prof. Dr. Franz Jaeger, em., University of St.Gallen |
| 1992 – 2013 |
Prof. Dr. Manfred Gärtner, em., University of St.Gallen |
| 2011 – 2017 |
Prof. Dr. Martin Kolmar, University of St.Gallen |