| 1949 – 1953 | Komm. Rat Walter Jiraschek Komm. Rat Otto Dohmen Komm. Rat Wilhelm Reither | (1. Obmann) (Stv.) (Stv.) |
| 1953 – 1955 | Komm. Rat Walter Jiraschek Komm. Rat Otto Dohmen Otto Müller Conrad Siems | (1. Obmann) (Stv.) (Stv.) (Stv.) |
| 1956 – 1960 | Dr. Norbert Jiraschek Komm. Rat Otto Dohmen DI Dr. Paul Rauscher Ob Ing. Karl Friedrich | (2. Obmann) (Ehren-Obmann) (Stv.) (Stv.) |
| 1961 – 1966 | Dr. Norbert Jiraschek Komm. Rat Otto Dohmen DI Dr. Paul Rauscher Ludwig Büll Dr. Hermann Anders | (2. Obmann) (Ehren-Obmann) (Stv.) (Stv.) (Stv.) |
| 1967 – 1969 | Ing. Alex Ebner KR Dipl. Ing. Rudolf Osmark | (3. Obmann) (Stv.) |
| 1970 – 1973 | DI Dr. Paul Rauscher KR Dipl. Ing. Rudolf Osmark | (4. Obmann) (Stv.) |
| 1973 – 1974 | Dipl. Vw. Heinz Rabenstein KR Dipl. Ing. Rudolf Osmark | (5. Obmann) (Stv.) |
| 1974 – 1975 | Dipl. Ing. Harald Ebbs KR Dipl. Ing. Rudolf Osmark | (6. Obmann) (Stv.) |
| 1975 – 1977 | Ing. Herbert Amtmann Dipl. Ing. Harald Ebbs | (7. Obmann) (Stv.) |
| 1978 – 1979 | Othmar Mayer (8. Obmann) Ing. Herbert Amtmann | (8. Obmann) (Stv.) |
| 1980 – 1982 | Erich Posch Othmar Mayer | (9. Obmann) (Stv.) |
| 1983 – 1985 | Othmar Mayer Dipl. Ing. Harald Ebbs | (10. Obmann) (Stv.) |
| 1985 – 1987 | Ing. Herbert Amtmann Komm. Rat Ferdinand Beringer | (11. Obmann) (Stv.) |
| 1988 – 2003 | Komm. Rat Erwin A. Pendl Komm. Rat Ferdinand Beringer | (12. Obmann) (Stv.) |
| 2003 – 2013 | Komm. Rat Ferdinand Beringer Dipl. Ing. Leo Peschl, MBA Wolfgang Jonke Ing. Mag. Gerhard Egger | (13. Obmann) (Stv. bis 2004) (Stv. 2004-2012) (Stv. 2012-2013) |
| 2013 – 2019 | Ing. Mag. Gerhard Egger Komm. Rat Ferdinand Beringer Ing. Friedrich Mozelt | (14. Obmann) (Stv. 2013 – 2014) (Stv. 2014 – 2019) |
| 2019 – 2023 | Ing. Mag. Gerhard Egger Ernst Schuchanegg | (14. Obmann) (Stv.) |
| ab 07/2023 | Ing. Otto Singer Mag. Stefan Kuhn | (15. Obmann) (Stv.) |
