| Dr. Anthony Baker (June 2001 to June 2002) | Dr. Marcus Post (July 2004 to April 2008) |
| Dr. Roberto Castelli (September 2009 to December 2010) | Prof. Dr. Robert Preis (January 2001 to February 2011) |
| Dr. Alessandro Dell'Aere (April 2004 to October 2008) | Dipl.-Math. Maik Ringkamp (February 2010 to August 2012) |
| Dipl.-Math. Helene Derksen-Riesen (January 2005 to April 2006) | Dipl.-Math. Michaela Schlör (October 1999 to January 2000) |
| Prof. Dr. Gary Froyland (December 1998 to June 2000) | Prof. Dr. Oliver Schütze (September 1999 to August 2006) |
| Dr. Laura Di Gregorio (June 2008 to May 2009) | Dipl.-Math. Marcel Schwalb (March 2007 to June 2008) |
| Prof. Dr. Oliver Junge (October 1998 to October 2005) | Dipl.-Math. Stefan Sertl (Oktober 1998 to September 2011) |
| Dr. Stefan Klus (December 2006 to September 2010) | Mariusz Slonina (March 2010 to December 2010) |
| Dr. Arvind Krishnamurthy (April 2003 to August 2007) | Dipl.-Tech.Math. Simon Sonntag (February 2011 to Mai 2011) |
| Dr.-Ing. Giorgio Mingotti (April 2010 to December 2010) | Dipl.-Math. Robert Timmermann (April 2009 to April 2013) |
|
Jun.-Prof. Dr. Kathrin Padberg-Gehle (February 2001 to March 2007) | Dr. Fang Wang (September 2002 to August 2007) |
| Dipl.-Math. Michael Petry (July 2006 to February 2007) | Dr. Katrin Witting (until March 2012) |
| Pierpaolo Pergola (September 2008 to December 2009) | Anna Zanzottera (November 2009 to December 2010) |