This list contains only some of the many institutes, universities and laboratories that make up the CMS Collaboration.

Austria Institut für Hochenergiephysik (HEPHY), Vienna

Belgium Antwerp University

Belgium Université Libre de Bruxelles

Belgium Ghent University

Belgium Université Catholique de Louvain

Belgium Vrije Universiteit Brussel

Brazil Universidade do Estado do Rio de Janeiro (UERJ), Rio de Janeiro

Brazil The São Paulo Research and Analysis Center (SPRACE)

Brazil Centro Brasileiro de Pesquisas Fisicas (CBPF)

Bulgaria The University of Sofia

Bulgaria Institute for Nuclear Research and Nuclear Energy (INRNE)

Bulgaria Institute for System Engineering and Robotics, Sofia, Bulgarian Academy of Sciences

China Peking University

China Institute of High Energy Physics, Beijing

Colombia Universidad de los Andes

Colombia Universidad de Antioquia

Croatia The Ruđer Bošković Institute (RBI), Zagreb

Croatia University of Split

Cyprus University of Cyprus, Nicosia

Czech Republic Charles University

Finland Helsinki Institute of Physics

France Centre de Calcul de l'Institut National de Physique Nucleaire et de Physique des Particules, CNRS/IN2P3

France Institut de Physique Nucléaire de Lyon

France IRFU, CEA, Université Paris-Saclay

France Laboratoire Leprince-Ringuet, Ecole Polytechnique, Université Paris-Saclay

France Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg, CNRS/IN2P3

Georgia The Georgian group

Germany Physics Institute IIIA of RWTH Aachen University

Germany The University of Karlsruhe

Germany Physics Institute IIIB of RWTH Aachen University

Germany Hamburg University

Greece Institute of Nuclear and Particle Physics (INPP), NCSR Demokritos

Hungary Wigner Research Centre for Physics, Budapest

Hungary Institute for Nuclear Research of the Hungarian Academy of Sciences (ATOMKI) and Institute of Physics of University of Debrecen

Hungary MTA-ELTE Lendület CMS Particle and Nuclear Physics Group, Eötvös Loránd University

India Panjab University

India Bhabha Atomic Research Centre (BARC)

India Indian Institute of Science Education and Research (IISER)

India University of Delhi

India Indian Institute of Science (IISc)

Iran Institute for Research in Fundamental Sciences (IPM)

Italy University and INFN Genova

Italy INFN Sezione di Torino

Italy INFN Laboratori Nazionali di Frascati

Italy INFN Sezione di Napoli

Italy INFN Sezione di Catania

Italy University and INFN Pisa

Italy INFN Sezione di Bari

Italy Università Sapienza and INFN Sezione di Roma

Lebanon The Lebanese University

Mexico Universidad Iberoamericana

Mexico The Meritorious Autonomous University of Puebla (BUAP)

Montenegro University of Montenegro (UM)

Poland CMS Warsaw group

Portugal Laboratório de Instrumentação e Física Experimental de Partículas (LIP)

Russia Novosibirsk State University

Russia Joint-Stock Company 'N.A. Dollezhal Research and Development Institute of Power Engineering' (JSC 'NIKIET')

Serbia The University of Belgrade

South Korea University of Seoul

South Korea Hanyang University

South Korea Kyungpook National University

South Korea Korea Institute of Science and Technology Information

Spain Instituto de Física de Cantabria (IFCA), CSIC-Universidad de Cantabria

Spain Instituto Tecnológico de Aragón (ITAINNOVA)

Spain Centro de Investigaciones Energéticas Medioambientales y Tecnológicas (CIEMAT)

Switzerland Paul Scherrer Institute (PSI)

Switzerland Institute for Particle Physics and Astrophysics, Zurich

Switzerland The University of Zurich

Switzerland CERN

Thailand Chulalongkorn University

Turkey Çukurova University

Turkey Boğaziçi University, Istanbul

Turkey Middle East Technical University (METU), Ankara

USA The University of Rochester

USA Carnegie Mellon University

USA The Rockefeller University

USA The University of Iowa

USA Wayne State University

USA University of Illinois at Chicago (UIC)

USA University of Notre Dame

USA University of California, Los Angeles (UCLA)

USA The University of Kansas

USA The University of California, Santa Barbara

USA Texas Tech University

United Kingdom Imperial College London

United Kingdom The Rutherford Appleton Laboratory (RAL)

United Kingdom Brunel University London

United Kingdom The University of Bristol