European Organization for Nuclear Research (CERN) (since 2006)
International Academy of Astronautics (since 2012)
International Union of Pure and Applied Physics (IUPAP) (since 2022)
Joint Research Centre of the European Commission (since 2016)
Ukrainian Science and Technology Center (USTC) (since 2005)
Thomson Reuters Company (since 2016)
Austria
Azerbaijan
Azerbaijan National Academy of Sciences (since 2017)
Belgium
Ghent University (since 1996)
Republic of Bulgaria
Bulgarian Academy of Sciences (since 1996/2026)
Brazil
Secretariat for Science and Technology of the State of Rio de Janeiro (since 1989)
Brazilian Academy of Sciences (since 2003)
Armenia
Great Britain
The Royal Society, London (since 1991)
Vietnam
Vietnam Academy of Humanities (since 2005)
Vietnam Academy of Science and Technology (VAST) (since 2000/2018)
Greece
European Structural Integrity Society (ESIS) (since 2009)
The National and Kapodistrian University of Athens (since 2014)
Estonia
Estonian Academy of Sciences (since 2000)
Egypt
Academy of Scientific Research and Technology of Egypt (since 1994)
Israel
India
Ministry of Science and Technology of India (since 1993)
ARC International (India) (since 1994)
Indian National Science Academy (since 2003)
Spain
National University of Cordoba (since 2010)
Italy
University of Catania (since 1994)
National AcademyDei Lincei (since 1994)
National Research Council of Italy (since 2005)
National Institute for Nuclear Physics (INFN) (since 2007/2011)
National Institute for Astrophysics (since 2018)
University of Padua (since 2019)
Kazakhstan
National Academy of Sciences of the Republic of Kazakhstan (since 2010)
Kazakh National Academy of Natural Sciences (since 2010)
Canada
The Royal Society of Canada (since 1997)
Atomic Energy of Canada Limited (since 2008)
Kyrgyzstan
National Academy of Sciences of the Kyrgyz Republic (since 2009)
Korea
Korea Science and Engineering Foundation (KOSEF) (since 1998)
Ministry of Commerce, Industry and Energy of the Republic of Korea (MOCIE) (since 2004/2005)
Korea Institute of Industrial Technology (KITECH) (since 2004/2007)
Korea Research Foundation (KRF) (since 2005)
Cuba
Cuban Academy of Sciences (since 1991)
Kuwait
Kuwait Institute for Scientific Research (since 2018)
Latvia
Latvian Academy of Sciences (since 1997)
Lithuania
Lithuanian Academy of Sciences (since 1994)
North Macedonia
Macedonian Academy of Sciences and Arts (since 1997)
Moldova
Academy of Sciences of the Republic of Moldova (since 1996/2007)
Presidium of the Academy of Sciences of the Republic of Moldova (since 1999)
Mongolia
Mongolian Academy of Sciences (since 2006)
Netherlands
Ministry of Economic Affairs (since 1995)
Germany
German Research Foundation (Deutsche Forschungsgemeinschaft, DFG)
The Max Planck Society for the Advancement of Science (since 2022)
Norway
European Incoherent Scatter Scientific Association (EISCAT) (since 2005)
South Africa
South African Nuclear Energy Corporation (NECSA) (since 2008)
Poland
Polish Academy of Sciences (since 2007/2013)
Polish Academy of Arts and Sciences (since 2006/2010)
Portuguese Republic
University of Lisbon (since 2018)
Romania
Romanian Academy (since 2008)
Serbia
Serbian Academy of Sciences and Arts (since 2006)
Singapore
National University of Singapore (since 2018)
Slovakia
Slovak Academy of Sciences (since 2004)
USA
San Jose State University, California (since 1993)
Pennsylvania State University (since 1993)
Ukrainian Academy of Arts and Sciences in the USA (since 2000)
National Oceanic and Atmospheric Administration (since 2012)
Tajikistan
Academy of Sciences of the Republic of Tajikistan (since 2006)
Türkiye
The Scientific and Technological Research Council of Turkey (TUBITAK) (since 2003)
Marmara Center of the Scientific and Technological Research Council of Turkey (TUBITAK) (since 2003)
Turkish Academy of Sciences (since 2004)
Turkmenistan
Academy of Sciences of Turkmenistan (since 2011/2012)
Hungary
Hungarian Academy of Sciences (since 2003/2007)
Uzbekistan
Academy of Sciences of the Republic of Uzbekistan (since 2005)
France
Taras Shevchenko National University of Kyiv (Ukraine) and Paul Sabatier University of Toulouse (since 1991)
French National Centre for Scientific Research (CNRS) (since 2004)
Croatia
Croatian Academy of Sciences and Arts (since 2009)
Czech Republic
Czech Academy of Sciences (since 2000/2016)
Montenegro
Montenegrin Academy of Sciences and Arts (since 2006)