- H. Beardmore (Canada) 1975–1977
- D. Pellerin (France) 1978–1980
- R.K. Gandhi (India) 1981–1983
- M. Bettex (Switzerland) 1984–1986
- J.R. Pineyro (Argentina) 1987–1989
- K. Ashcraft (U.S.A.) 1990–1992
- W.A. Maier (Germany) 1993–1995
- S. Cywes (South Africa) 1996–1998
- J. Grosfeld (USA) 1999–2001
- T. Miyano (Japan) 2002–2004
- A. Coran (USA) 2005–2007
- P. Puri (Ireland) 2008–2010
- R. Azizkhan (USA) 2011-2013
- Devendra Gupta (India) 2014-2016
- David Sigalet (Qatar) 2016-2019
- Sameh Shehata (Egypt) 2019-2022