| Dan ABRAMOVICH | Brown University of Providence |
| Josep ALVAREZ MONTANER (visio) | Polytechnic University of Catalonia |
| Michał ŁUPIŃSKI (visio) | University of Warsaw |
| Andrei BARBUTA (visio) | University of Cambridge |
| André BELOTTO DA SILVA (visio) | Université Paris Cité |
| Angélica BENITO (visio) | UAM Madrid |
| Marta BENOZZO (visio) | University College London |
| Jakob BERGQVIST (visio) | Heinrich Heine Universität Düsseldorf |
| Bhargav BHATT (visio) | University of Michigan |
| Edward BIERSTONE (visio) | University of Toronto |
| Manuel BLICKLE (visio) | JGU Mainz |
| Dorin BOGER (visio) | - |
| Ana BRAVO (visio) | Autonomous University of Madrid |
| Holger BRENNER (visio) | University of Osnabrueck |
| Stefano CANINO (visio) | Politecnico di Torino |
| Javier CARVAJAL-ROJAS | Catholic University of Leuven |
| Pierrette CASSOU-NOGUES (visio) | Univ. Bordeaux |
| Kestutis CESNAVICIUS | CNRS Université Paris-Sud |
| Christopher CHIU (visio) | Universität Wien |
| Victor CORREC (visio) | Université de Rennes 1 |
| Vincent COSSART | Université de Versailles - St Quentin-en-Yvelines |
| Dale CUTKOSKY (visio) | University of Missouri |
| Rankeya DATTA (visio) | University of Illinois at Chicago |
| Tommaso DE FERNEX (visio) | University of Utah |
| Celia DEL BUEY DE ANDRÉS (visio) | Autonomous University of Madrid |
| Roi DOCAMPO (visio) | University of Oklahoma |
| Santiago ENCINAS (visio) | University of Valladolid |
| Daniel ERMAN (visio) | University of Wisconsin-Madison |
| Erroxe ETXABARRI ALBERDI (visio) | Loughborough University |
| Eleonore FABER (visio) | University of Graz |
| Charles FAVRE (visio) | CNRS École polytechnique |
| Anne FAYOLLE | The University of Utah |
| Alberto FERNANDEZ BOIX (visio) | Universidad de Valladolid |
| Anne FRÜHBIS-KRÜGER | University of Oldenburg |
| Evelia R. GARCÍA BARROSO (visio) | University of La Laguna |
| Victor GONZÁLEZ ALONSO (visio) | Humboldt-Universität zu Berlin |
| Pedro GONZALEZ (visio) | Universidad Complutense de Madrid |
| Herwig HAUSER (visio) | Universität Wien |
| Jeroen HEKKING (visio) | University of Regensburg |
| Mel HOCHSTER (visio) | University of Michigan |
| Shihoko ISHII (visio) | University of Tokyo |
| Seung-Jo JUNG (visio) | Jeonbuk National University |
| Hiraku KAWANOUE (visio) | Chubu University, Kyoto University |
| Dmitry KERNER (visio) | Ben-Gurion University of the Negev |
| Janos KOLLAR (visio) | Princeton University |
| Vanishree KRISHNA KIREKOD (visio) | Technical University Kaiserslautern |
| Franz-Viktor KUHLMANN | University of Szczecin |
| Katarzyna KUHLMANN | University of Szczecin |
| Arnab KUNDU (visio) | Université Paris-Saclay |
| Kevin LANGLOIS (visio) | Universidade Federal do Ceará (UFC) |
| Alessandro LINZI (visio) | University of Szczecin |
| Ignacio LUENGO (visio) | Complutense University of Madrid |
| Linquan MA (visio) | Purdue University |
| Jeetendrasingh MAAN (visio) | Indian Institute of Technology (ISM) Dha |
| Joshua MAGLIONE (visio) | University Bielefeld |
| Devlin MALLORY (visio) | University of Utah |
| Daniel MAMO (visio) | Addis Ababa University |
| Andres MARTINEZ SERVELLON (visio) | University of Michigan |
| Tanuj MATHUR (visio) | IISER Pune |
| Simon MAY (visio) | University of Leeds |
| Hana MELÁNOVÁ (visio) | University of Vienna |
| Claudia MILLER (visio) | Syracuse University |
| Hussein MOURTADA | Université de Paris |
| Alapan MUKHOPADHYAY (visio) | École Polytechnique Fédérale de Lausanne |
| Takumi MURAYAMA (visio) | Princeton University |
| Luis NARVÁEZ MACARRO (visio) | University of Sevilla |
| Josnei NOVACOSKI (visio) | Universidade Federal de São Carlos |
| Luis NUNEZ-BETANCOURT (visio) | CIMAT, Laudun |
| Janet PAGE | North Dakota State University |
| Swaraj PANDE (visio) | University of Michigan |
| Shravan PATANKAR (visio) | University of Illinois at Chicago |
| Ragni PIENE (visio) | University of Oslo |
| Olivier PILTANT (visio) | CNRS Université de Versailles |
| Ming Hao QUEK (visio) | Brown University |
| Eamon QUINLAN-GALLEGO (visio) | University of Utah |
| Ana REGUERA (visio) | Universidad de Valladolid |
| Marko ROCZEN (visio) | Humboldt University, Berlin |
| Alejandro RODRIGUEZ MATTA (visio) | Universidad Nacional Autónoma de Méxic |
| Guillaume ROND | Aix-Marseille Université |
| David RYDH (visio) | Royal Institute of Technology |
| Anna RZEPKA (visio) | University of Silesia in Katowice |
| Bernd SCHOBER | University of Oldenburg |
| Karl SCHWEDE (visio) | University of Utah |
| Mykola SHAMAIEV (visio) | Catholic University of Leuven |
| Amith SHASTRI KALLAJE (visio) | Chennai Mathematical Institute |
| Anurag SINGH (visio) | University of Utah |
| Jyoti SINGH (visio) | Visvesvaraya National Institute of Techn |
| Ilya SMIRNOV (visio) | Ikerbasque Basque Fondation for Science |
| Karen E. SMITH (visio) | University of Michigan |
| Daniel SMOLKIN (visio) | University of Michigan |
| Mark SPIVAKOVSKY | CNRS Université Toulouse III - Paul Sabatier |
| Tanya Kaushal SRIVASTAVA (visio) | Chennai Mathematical Institute |
| Axel STÄBLER (visio) | Leipzig University |
| Claudia STADLMAYR (visio) | TUM Munich |
| Diego SULCA (visio) | Universidad Nacional de Córdoba |
| Bernard TEISSIER (visio) | CNRS Université Paris Cité |
| Michael TEMKIN | Hebrew University of Jerusalem |
| María De La Paz TIRADO HERNÁNDEZ (visio) | Universidad de Sevilla |
| Lewis TOPLEY (visio) | University of Bath |
| Kevin TUCKER (visio) | University of Illinois at Chicago |
| Daniele TURCHETTI (visio) | University of Durham |
| Michel VAQUIÉ | CNRS Université Toulouse III - Paul Sabatier |
| Sridhar VENKATESH (visio) | University of Michigan |
| . VIDEOS | . |
| Pascale VOEGTLI (visio) | London School Geometry and Number Theory |
| Christopher VOLL (visio) | Bielefeld University |
| Art WAETERSCHOOT (visio) | Catholic University of Leuven |
| Joe WALDRON (visio) | Michigan State University |
| Uli WALTHER (visio) | Purdue University |
| Emily WITT (visio) | University of Kansas |
| Jaroslaw WLODARCZYK | Purdue University of Indiana |
| Runlei XIAO (visio) | Université Côte d'Azur |
| Santiago ZARZUELA | University of Barcelona |
| Shaowu ZHANG (visio) | University of Paris Saclay |