| Name | Institution | Dates |
| Bernard Schutz | Cardiff University | August 29-30, 2014 |
| Joan Masso | University of the Balearic Isles | October 10-16, 2014 |
| Manuela Campanelli | Rochester Institute of Technology | April 24, 2015 |
| Patrick Brady | University of Wisconsin – Milwaukee | December 10, 2015 |
| Miguel Alcubierre Moya | National Autonomous University of Mexico | March 1-4, 2016 |
| Eloisa Bentivegna | University of Catania | July 17-23, 2016 |
| Ian Hinder | Albert Einstein Institute | July 17-23, 2016 |
| James Merten | Case Western | July 18-20, 2016 |
| Ruxandra Bondarescu | University of Zurich | August 14-16, 2016 |
| Jayashree Balakrishna | Harris-Stowe State University | August 14-16, 2016 |
| John Friedman | University of Wisconsin-Milwaukee | September 27-29, 2016 |
| Nasir Eisty | University of Alabama | June 9-August 20, 2017 |
| Eloisa Bentivegna | University of Catania | August 7-11, 2017 |
| Ian Hinder | Albert Einstein Institute | August 7-11, 2017 |
| Irena Spasić | University of Cardiff | September 5-7, 2017 |