- Petr Cintula and Marta Bílková | Czech Republic, March 2018
- Arnon Avron | Tel Aviv University, Israel, February 2018
- Claudia Nalon | University of Brasilia, Brasil, February 2018-April 2018
- Elaine Pimentel | Brasil, January 2018-May 2018
- Carlos Olarte | Brasil, January 2018-May 2018
- Jorge Perez | University of Groningen (NL), September 2017
- George Metcalfe | University of Bern, September 2017
- Giselle Reis | CMU-Quatar July 2017
- Frederik Mollerstrom Lauridsen | ILLC, Amsterdam June 2017
- James Brotherston| University College London, UK March 2017
- Lutz Strassburger | Ecole Polytechnique, Paris, February 2017
- Elaine Pimentel and Carlos Olarte | Brasil, December 2016
- Sonia Marin | Ecole Polytechnique, Paris, October 2016
- Kaustuv Chaudhuri | Ecole Polytechnique, Paris, April 2016
- Giselle Reis | Ecole Polytechnique, Paris, April 2016
- Apostolos Tzimoulis | TU Delft, April 2016
- Zhiguang Zhao | TU Delft, April 2016
- Miki Hermann | Ecole Polytechnique, Paris
- Marianna Girlando | Marseille, France, December 2016
- Helmut Schwichtenberg | Mathematisches Institut der Universität München, November 2016
- Rajeev Gore, Australian National University, Canberra, October 2016
- Anna Zamansky | Haifa University, Israel August 2016
- Arnold Beckmann | Swansea University, UK August 2016
- Sara Negri | University of Helsinki June 2016
- Dirk Pattinson | Australian National University, Canberra, May-June 2016
- Nicola Olivetti | Marseille, France, January 2016
- Elaine Pimentel and Carlos Olarte | Brasil, January 2016
- Roy Dickhoff | Edimburgh, UK, November 2015
- Emil Jerabek, | Prague CZ, September 2015
- Elaine Pimentel | Brasil, June-July 2015
- Lutz Strassburger | Ecole Polytechnique, Paris, May 2015
- Giuseppe Greco | TU Delf, April 2015
- Alessandra Palmigiano | TU Delf, April 2015
- Joao Marcos | Brasil, June 2014
- George Metcalfe | University of Bern, November 2014
- Elaine Pimentel | Brasil, May 2014
- Nikolaos Galatos | Denver University, December 2013-February 2014
- Tomoyuki Suzuki | Academy of Science, Prague February 2014
- George Metcalfe, November 2013
- Nikolaos Galatos, December 2013-February 201
- Paula Chocron, November 2013
- Pascal Fontaine, November 2013
- Stephan Merz, November 2013
- Joseph Boudou, November 2013
- Miki Hermann, October 2013
- Kazushige Terui, September 2013
- Rajeev Gore, September 2013
- Tomas Kroupa, September 2013
- Petr Cintula, September 2013
- Yaroslav Shramko, August 2013
