| Sebastian Neubert | September 2021 - September 2023 |
| Stefania Ricciardi | October 2019 - September 2021 |
| Katharina Mueller | October 2017 - September 2019 |
| Marco Gersabeck | October 2016 - September 2017 |
| Stefania Vecchi | April 2015 - September 2016 |
| Olivier Leroy | April 2014 - March 2015 |
| Marta Calvi | April 2013 - March 2014 |
| Olaf Steinkamp | January 2012 - March 2013 |
| Gaia Lanfranchi | January 2009 - December 2011 |
| Monica Pepe-Altarelli | January 2008 - December 2009 |
| Tatsuya Nakada | December 2000 - December 2008 |