Presidents
| FAIVOVICH, GREGORIO | Chile | 1986-1971 |
| YOSHISHIGE FUJIKI | Japan | 1971-1974 |
| KARK-AKE OMNELL | Sweden | 1974-1977 |
| CLINE FIXOTT | USA | 1977-1980 |
| JAN van AKEN | The Netherlands | 1980-1983 |
| ABDUL ADATIA | United Kingdom | 1983-1985 |
| CHARLES MORRIS | USA | 1985-1987 |
| BIRGIT GLASS | USA | 1987-1988 |
| LEVENTE PATAKY | Hungary | 1988-1991 |
| DONG SONG YOU | Korea | 1991-1994 |
| ALLAN FARMAN | USA | 1994-1997 |
| HAJIME FUCHIHATA | Japan | 1997-1999 |
| DOUGLAS LOVELOCK | United Kingdom | 1999-2001 |
| EDEMIR COSTA | Brazil | 2001-2003 |
| CHRIS NORTJE | South Africa | 2003-2005 |
| XU-CHEN MA | China |
2005-2007 |
| PAUL VAN DER STELT | The Netherlands | 2007-2009 |
| Keiji Tanimoto | Japan | 2009-2011 |
| TORE A LARHEIM President | Norway | 2011-2013 |
| ANDRES BRINER President elect | Chile | 2013 |
Secretaries General
| TAKURO WADA | Japan | 1968-1971 |
| LARS HOLLENDER | Sweden | 1971-1985 |
| ROBERT LANGLAIS | USA | 1985-1997 |
| GERARD SANDERINK | The Netherlands |
1997-2007 |
| M.E. PARKER | South Africa | 2007-2013 |