Sidney Rosoff (USA, 1980 – 1984) 
Minoo Masani (India, l984 – 1986) 
Prof. Patrick Nowell-Smith (Canada, 1986 – 1988) 
Derek Humphry (USA, 1988 – 1990) 
Jean Davies (England, 1990 – 1992) 
Dr. Helga Kuhse (Australia, 1992 – 1994) 
Dr. Aycke O A Smook (Netherlands, l994 – 1996) 
Dr. Hugh T. Wynne (UK, l996 – 1998) 
Mary Gallnor (Australia, 1998 – 2000) 
Richard MacDonald (USA, 2000 – 2002)
Dr. Michael Irwin (UK, 2002 – 2004)
Jacob Kohnstamm (Netherlands, 2004 – 2006)
Jacqueline Herremans (Belgium, 2006 – 2008)
Juan Mendoza-Vega (Colombia,  2008 – 2010)
Ted Goodwin (USA, 2010 – 2012)
Neil Francis (Australia, 2012)
Faye Girsh (USA, 2012-2014)
Ron Plummer (UK, 2014-2016)

Sean Davison (South Africa, 2016 – 2018)