WC 2000, Chicago, USA
Prof. John R Cameron, USA

WC 2003, Sydney, Australia
Prof. Andree Dutreix, France

WC 2006, Seoul, Korea
Prof. John R Cunningham, Canada

WC 2009, Munich, Germany
Prof. Azam Niroomand-Rad, USA

WC 2012, Beijing, China
Prof. Charles A Mistretta, USA

WC 2015, Toronto, Canada
Prof. Colin Orton, USA

WC 2018, Prague, Czech Republic
Prof. Kwan Ng, Malaysia

2022
Prof. Ehsan Samei, USA