- Alessandro Sciarra, University of Frankfurt (Goethe University)
- Andre Walker-Loud, Lawrence Berkeley National Laboratory
- Andrea Shindler, CERN
- Antonio Mihara, Universidade Federal de São Paulo
- Arthur Kos Antunes Maciel, CBPF – Rio de Janeiro
- Arthur Rodrigues Jardim Barreto, State University of Rio de Janeiro
- Ashley Cooke
- Attilio Cucchieri, University of São Paulo
- Benjamin Hermann Jaeger, Helmholtz-Institute Mainz
- Chris Sachrajda, University of Southampton
- Christian Hoelbling, University of Wuppertal
- Christian Jared Petteruti Shultz, Old Dominion University
- Christopher Pinke, Goethe University, Frankfurt am Main
- Daniel Lorenzo Reyes Lopez, Universidade Estadual de Rio de Janeiro
- Danilo César Moreira, Universidade Federal de Campina Grande
- Elisabetta Pallante, University of Groningen
- Eoin Kerrane, Universidad Autonoma de Madrid
- Gastao Krein, Universidade Estadual Paulista – UNESP
- Gennady Voronov, Yale University
- Gennaro Cortese, CSIC Madrid & Universidad de Zaragoza
- Gregorio Herdoiza, Universidad Autonoma de Madrid
- Gregory Petropoulos, University of Colorado Boulder
- Hannes Vogt, Universitaet Tuebingen
- Jacek Wosiek, Jagellonian University
- James Zanotti, University of Adelaide
- Jorge José Leite Noronha Junior, University of São Paulo
- Kazuyuki Kanaya, University of Tsukuba
- Luiz Gustavo Cardoso Maria, Universidade do Estado do Rio de Janeiro
- Mattia Dalla Brida, Trinity College Dublin
- Michael Creutz, Brookhaven National Laboratory
- Michael Gordon Endres, RIKEN
- Owe Philipsen, Goethe University, Frankfurt am Main
- Pol Vilaseca Mainar, Trinity College Dublin
- Rafael Bertolini Frigori, Universidade Tecnológica Federal do Paraná
- Rainer Sommer, NIC/DESY-Zeuthen
- Rogerio Rosenfeld, Instituto de Fisica Teorica – UNESP
- Stephen Sharpe, University of Washington
- Tereza Mendes, IFSC – University of São Paulo
- Thiago Cheble Alves Calza, Universidade do Estado do Rio de Janeiro
- Tim Harris, Trinity College, University of Dublin
- Vera Magdalena Guelpers, University of Mainz
- Willian Matioli Serenone, Universidade de São Paulo
- Wolfgang Bietenholz, Universidade Autonoma de Mexico
- Zbigniew Ambrozinski, Jagiellonian University in Krakow
See list of study groups here.