Hasselt, Belgium, 2018, IREG-9 Conference: Ranking and Accreditation - two roads to the same goal? (organized by Hasselt University and IREG Observatory)
Doha, Qatar, 2017, IREG Forum: Excellence as the University Driving Force (organized by Qatar University and IREG Observatory)
Lisbon, Portugal, 2016, IREG-8 Conference: University Rankings and International Academic Relations - a Bridging Tool or a Hindrance? (organized by Universidade NOVA de Lisboa and IREG Observatory)
Aalborg, Denmark, 2015, IREG Forum: Rankings by Subject – Inclusive Approach to University Performance (organized by Aalborg University and IREG Observatory)
London, 2014, IREG-7 Conference Employability and Academic Rankings – Reflections and Impacts, (organized by QS Quacquarelli Symonds and IREG Observatory, London, United Kingom -14-16 May 2014)
Warsaw, 2013, IREG Forum on Ranking Methodologies (Organized by IREG Observatory and Perspektywy Education Foundation – 16-17 May 2013)
Taipei, 2012, IREG-6 Conference Academic Rankings and Advancement of Higher Education: Lessons from Asia and other Regions (organized by IREG Observatory and Higher Education Evaluation & Accreditation Council of Taiwan HEEACT).
Bratislava, 2011, IREG Forum on National Rankings (organized by IREG Observatory in collaboration with ARRA - Slovak Academic Ranking and Rating Agency).
Maribor, 2010, Academicus Event Mapping of Academic Excellence in the Context of Quality Assurance (organized by University of Maribor in collaboration with IREG Observatory).
Berlin, 2010, IREG-5 Conference Academic Rankings: From Popularity to Reliability and Relevance (organized by IREG Observatory and CHE-Centre for Higher Education Development with the support of the German Federal Ministry of Research and Higher Education).
Warsaw, 2010, 1st General Assembly of IREG Observatory and a round table debate on: What should be done to improve standing of humanities and social sciences in academic rankings?
Brussels, 2009, IREG Observatory on Academic Ranking and Excellence established and registered in Brussels under the Belgian law as an international association not-for-profit.
Astana, 2009, IREG-4 Conference International and National Academic Ranking: Commonalities and Differences (organized with the support of UNESCO-CEPES and the Ministry of Education and Science of Kazakhstan).
Warsaw, 2008, International Education Conference – Special Session on Rankings (following the session members of IREG group met to initiated a procedure leading to creation of an international organization)
Shanghai, 2007, IREG-3 Conference (organized with the support of UNESCO-CEPES and Jiao Tong University)
Berlin, 2006, IREG-2 Conference (organized with the support of UNESCO-CEPES and the CHE-Centre of Higher Education Development). The Conference adopted The Berlin Principles on Ranking of Higher Education Institutions.
Washington DC, 2004, IREG-1 Conference (organized with the support of UNECSO-CEPES and the Institute for Higher Education Policy)
Warsaw, 2002, IREG-0 Conference International Ranking Expert Group (IREG) emerged as a joint initiative of the UNESCO European Centre for Higher Education (UNESCO-CEPES) and a group of international ranking experts concerned with the quality of academic ranking.