| John Walsh | April 2022 - March 2024 |
| Franz Muheim | April 2020 - March 2022 |
| Patrick Koppenburg | April 2018 - March 2020 |
| Fergus Wilson | April 2017 - March 2018 |
| Michael Schmelling | April 2016 - March 2017 |
| George Lafferty | July 2014 - June 2016 |
| Rolf Oldeman | March 2013 - March 2015 |
| Ulrik Egede | April 2011 - March 2013 |
| Roger Forty | December 2008 - March 2011 |
| Clara Matteuzzi | December 2004 - November 2008 |