| Sergey Kitaev | Reykjavik University | 2008–2010 |
| Einar Steingrímsson | Reykjavik University | 2009–2010, 2002 |
| Mark Dukes | University of Iceland | 2009–2010 |
| Martina Kubitzke | Reykjavik University | 2010 |
| Svante Linusson | KTH Royal Institute of Technology | 2010 |
| Mireille Bousquet-Mélou | LaBRI, Université Bordeaux 1 | 2010 |
| Ronald Graham | University of California, San Diego | 2010 |
| Eva Jelinkova | Charles University | 2010 |
| Fan Chung | University of California, San Diego | 2010 |
| Bridget Eileen Tenner | DePaul University | 2008 |
| Kari Ragnarsson | DePaul University | 2008 |
| T. Kyle Petersen | University of Michigan | 2007 |
| Toufik Mansour | University of Haifa | 2005, 2002 |
| David G. Wagner | University of Waterloo | 2003 |
| Chris D. Godsil | University of Waterloo | 2003 |
| Petter Brändén | Stockholm University | 2002 |