53 research institutions from twelve countries have signed the agreement for the international R&D collaboration for a future wide field-of-view gamma ray observatory in the southern hemisphere. The aim of the collaboration is to develop, over the next three years, a detailed proposal for the implementation of such an observatory, including site selection and technology choices. The partner countries of the Southern Wide field-of-view Gamma-ray Observatory (SWGO) are Argentina, Brazil, Chile, Czech Republic, Germany, Italy, Mexico, Peru, Portugal, South Korea, the United Kingdom, and the United States of America, creating a worldwide community around the project. In addition, there are 32 supporting scientists from 10 countries.

Spokesperson: Jim Hinton

Vice-spokespersons: Petra Huentemeyer, Ulisses Barres

• Instituto de Astronomía y Física del Espacio (IAFE, CONICET-UBA)
• DPC-CAB
• Facultad de Ciencias Exactas - Universidad Nacional de Salta
• INSTITUTO DE FÍSICA LA PLATA - CONICET/UNLP

• CBPF/Rio de Janeiro
• Instituto de Física de São Carlos, Universidade de São Paulo
• IFF - Instituto Federal Fluminense

• Universidad Metropolitana de Ciencias de la Educación (UMCE)
• Univ. Tecnica Federico Santa Maria
• Centro de Astronomía (CITEVA), Universidad de Antofagasta
• Centro de Ciencias Exactas, Universidad del Bío-Bío

• FZU, Institute of Physics of the Czech Academy of Sciences

• Erlangen Centre for Astroparticle Physics - Universität Erlangen-Nürnberg
• Max Planck Institute for Nuclear Physics
• RWTH Aachen University

• Dipartimento di Fisica, Università degli studi di Torino
• University of Padova, Department of Physics and Astronomy & INFN Padova
• Dipartimento di Fisica e Astronomia "E. Majorana", University Catania
• Department of Physics, University of Trieste
• Politecnico di Milano
• Università IUAV di Venezia
• Università degli Studi di Roma "Tor Vergata" - DIpartimento di Fisica
• University Udine
• University Perugia
• University Siena
• Dipartimento Interateneo di Fisica dell’Università e del Politecnico di Bari
• INAF

• Instituto de Fisica, UNAM
• IA-UNAM
• ICN-UNAM
• Instituto de Geofísica UNAM
• INAOE
• Facultad de Ciencias en Física y Matemáticas UNACH
• Benemérita Universidad Autónoma de Puebla
• Universidad de Guadalajara
• Universidad Michoacana de San Nicolas de Hidalgo
• Centro de Investigación en Computación. Instituto Politécnico Nacional
• UAEH
• UPP
• Tecnologico de Monterrey, Campus Toluca, Departamento de Bioingeniería y Ciencias

• LIP

• Universidad Nacional de San Agustin de Arequipa
• Pontificia Universidad Católica del Perú

• Department of Physics, University of Seoul

• Durham University
• University of Leicester
• University of Liverpool
• University of Oxford

• Michigan Technological University
• Los Alamos National Lab
• University of Maryland
• University of Wisconsin-Madison