| Eva Jelinkova | Charles University | 2008–2010 |
| Mireille Bousquet-Mélou | LaBRI, Université Bordeaux 1 | 2010, 2005 |
| Bridget Eileen Tenner | DePaul University | 2010, 2008 |
| Mark Dukes | University of Iceland | 2009–2010 |
| Ronald Graham | University of California, San Diego | 2010 |
| Andri Egilsson | Reykjavik University | 2010 |
| Svante Linusson | KTH Royal Institute of Technology | 2010 |
| Fan Chung | University of California, San Diego | 2010 |
| Toufik Mansour | University of Haifa | 2002–2009 |
| Jeff Remmel | University of California, San Diego | 2006–2009 |
| Marek Tesar | Charles University | 2008–2009 |
| Sergey Avgustinovich | Sobolev Institute of Mathematics | 2008–2009 |
| Alexander Burstein | Iowa State University | 2009, 2005 |
| Gesa Kämpf | University of Osnabrück | 2008–2009 |
| Bernard Lidicky | Charles University | 2008–2009 |
| Alessandro De Luca | Università degli Studi di Napoli Federico II | 2008–2009 |
| Amy Glen | Murdoch University | 2008–2009 |
| Tomas Vyskocil | Charles University | 2008–2009 |
| Silvia Heubach | California State University, LA | 2009, 2007 |
| Michelangelo Bucci | Università degli Studi di Napoli Federico II | 2008–2009 |
| Jan Kratochvil | Charles University | 2008–2009 |
| Artem Pyatkin | Sobolev Institute of Mathematics | 2008–2009 |
| Jacques Justin | Université Paris Diderot - Paris 7 | 2009 |
| Steve Widmer | University of North Texas | 2009 |
| Magnús Már Halldórsson | Reykjavik University | 2009 |
| Sebastien Ferenczi | Institut de Mathématiques de Luminy | 2008, 2003–2005, 2000–2001 |
| Martin Klazar | Charles University | 2007–2008 |
| Patrice Séébold | Université de Picardie Jules Verne | 2008, 2004 |
| Tomi Kärki | University of Turku | 2007–2008 |
| Robert Tijdeman | Leiden University | 2008, 2003 |
| Julien Cassaigne | Institut de Mathématiques de Luminy | 2008, 2000 |
| Steve Seif | University of Louisville | 2008 |
| Gwénaël Richomme | Université de Picardie Jules Verne | 2008 |
| Kalle Saari | University of Turku | 2008 |
| Volkmar Welker | Philipps-Universität Marburg | 2008 |
| Eran Nevo | Cornell University | 2008 |
| Kari Ragnarsson | DePaul University | 2008 |
| Ondrej Suchy | Charles University | 2008 |
| Aldo de Luca | Università degli Studi di Napoli Federico II | 2008 |
| Zdenek Dvorak | Simon Fraser University | 2007, 2005, 2003 |
| Jan Kyncl | Charles University | 2007, 2005 |
| T. Kyle Petersen | University of Michigan | 2006–2007 |
| Jan Kara | Charles University | 2007, 2003 |
| Daniel Kral | Charles University | 2007, 2005 |
| Michael E. Saks | Rutgers University | 2007, 2005 |
| Jakub Cerny | Charles University | 2007, 2003 |
| Jakayla Robbins | The University of Montana | 2007 |
| Marinella Sciortino | University of Palermo | 2007 |
| Vesa Halava | University of Turku | 2007 |
| Lauren K. Williams | Harvard University | 2007 |
| Tero Harju | University of Turku | 2007 |
| Tomas Valla | Charles University | 2007 |
| Pavel Valtr | Charles University | 2007 |
| Rudolf Stolar | Charles University | 2007 |
| Robert Babilon | Charles University | 2007 |
| Charles Holton | former Master's student at University of North Texas, USA | 2003–2006, 1997–2001 |
| Marcia Edson | Murray State University, USA | 2006, 2004 |
| Valérie Berthé | Laboratoire d'Informatique, de Robotique et de Microélectronique de Montpellier (LIRMM) | 2005–2006 |
| Tyrrell B. McAllister | Eindhoven Institute of Technology | 2006 |
| Nelson Y. Li | Nankai University | 2006 |
| Sherry H. F. Yan | Nankai University | 2006 |
| Antoine Vella | Technical University of Denmark | 2005 |
| Ioana Zorca | Lone Star College-North Harris | 2005 |
| Vioma Anne | former Master's student at University of North Texas, USA | 2005 |
| Oliver Jenkinson | Queen Mary University of London, UK | 2004 |
| Alexander Evdokimov | Sobolev Institute of Mathematics | 2004 |
| Anthony Quas | University of Victoria, Canada | 2004 |
| David G. Wagner | University of Waterloo | 2003 |
| Chris D. Godsil | University of Waterloo | 2003 |
| David Damanik | Rice University, USA | 2003 |
| Teturo Kamae | Matsuyama University, Japan | 2002 |
| Filippo Mignosi | Université degli Studi di L'Aquila, Italy | 2002 |
| Petter Brändén | Stockholm University | 2002 |
| Jean-Paul Allouche | Université Paris-Sud 11 | 2001, 1998 |
| Nathan Wozny | former undergraduate at University of North Texas | 2001 |
| J.L. Davison | Laurentian University, Canada | 2001 |
| Martine Queffélec | Université de Lille 1, France | 2001 |
| Richard Ehrenborg | University of Kentucky | 2000, 1998, 1996 |
| Eric Babson | University of California, Davis | 2000 |
| Rebecca Risley | former Master's student at University of North Texas, USA | 2000 |
| Margaret Readdy | University of Kentucky | 1998 |
| Pallavi Ketkar | former Master's student at University of North Texas, USA | 1998 |
| Jon Lee | IBM Research | 1997 |
| Robert J. Clarke | The University of Adelaide | 1997 |
| Chun Wa Ko | | 1997 |
| Jiang Zeng | Université Claude Bernard Lyon-I | 1997 |
| Steve Jackson | University of North Texas, USA | 1995 |
| Mariusz Urbanski | University of North Texas, USA | 1993–1994 |