• IGORR 21 in Maryland, USA (collaboration with TRTR) in June 2023

• IGORR 20 remote (support IAEA) in June 2021

• IGORR 19 in Jordan in March 2019

• IGORR 18 in Sydney, Australia in December 2017

• ​IGORR 17 in Berlin, Germany in March 2016

• ​IGORR 16 in Bariloche, Argentina in November 2014

• ​IGORR 15 in Daejeon, South Korea in October 2013

• ​IGORR 14 in Prague, Czech Republic in March 2012

• ​IGORR 13 in Knoxville, USA in September 2010

• ​IGORR 12 in Beijing, China in October 2009

• ​IGORR 11 in Lyon, France in March 2007

• ​IGORR 10 in Washington, USA in September 2005

• ​IGORR 9 in Sydney, AU in March 2003

• ​IGORR 8 in Munich, DE in April 2001

• ​IGORR 7 in Bariloche, AR in October 1999

• ​IGORR 6 in Taejon, KR in May 1998

• ​IGORR 5 in Aix-en-Provence, France in November 1996

• ​IGORR 4 in Gatlinburg, TN in May 1995

• ​IGORR 3 in Ibaraki, Japan in September - October 1993

• ​IGORR 2 in Saclay, France in May 1992

• ​IGORR 1 in Knoxville, USA in February - March 1990