| Year | Location | Organizer(s) |
| 1976 | Albany, NY, USA | |
| 1978 | Knoxville, TN,USA | With A.S. Kertes |
| 1980 | Potsdam, NY, USA | With Eleanor Fendler |
| 1982(SIS) | Lund, Sweden | Bjorn Lindman |
| 1984 | Bordeaux, France | Pierre Bothorel |
| 1986 | New Delhi, India | A.N. Maitra, D.K.Chattoraj, J.C. Ahluwalia |
| 1988 | Ottawa, Canada | J. Desnoyers, Henry Mantsch |
| 1990 | Gainesville,FL,USA | D. O. Shah |
| 1992 | Varna, Bulgaria | Ivan Ivanov |
| 1994 | Caracas, Venezuela | H. Rivas |
| 1996 | Jerusalem, Israel | Nissim Garti, Sam Safran |
| 1998 | Stockholm, Sweden | Krister Holmerg |
| 2000 | Gainesville, FL, USA | D.O. Shah, Brij Moudgil |
| 2002 | Barcelona, Spain | Claudi Mans, Conxita Solans, Carmen Gonzalez |
| 2004 | Fortaleza, Brazil | Eloi Feitosa |
| 2006 | Seoul, Korea | Jong –Duk Kim, Seong – Geun Oh |
| 2008 | Berlin, Germany | Reinhard Miller, Dieter Vollhardt Helmut Mohwald |
| 2010 | Melbourne, Australia | Patrick Hartley |
| 2012 | Edmonton, Canada | Alidad Amirfazli, Subir Bhattacharjee |
| 2014 | Coimbra, Portugal | Artur J M Valente, Eduardo F Marques |
| 2016 | Jinan, P.R. China | Jingcheng Hao |
| 2018 | Norman, OK, USA | Brian Grady |
| 2020 | NO MEETING | Covid-19 Pandemic Shutdown |
| 2022 | Lublin, Poland | Konrad Terpilowski |
| 2024 | Goa, India | K Srinivas, Sunil Bhagwat |