Year | Place | Session | President | General Secretary |
1897 | Hamburg | 1st | A. Herzfeld, Germany | |
1898 | Vienna | 2nd | A. Herzfeld, Germany | |
1900 | Paris | 3rd | A. Herzfeld, Germany | |
1903 | Berlin | 4th | A. Herzfeld, Germany | F.G. Wiechmann, USA |
1906 | Berne | 5th | A. Herzfeld, Germany | F.G. Wiechmann, USA |
1909 | London | 6th | A. Herzfeld, Germany | F.G. Wiechmann, USA |
1912 | New York | 7th | A. Herzfeld, Germany | F.G. Wiechmann, USA |
1932 | Amsterdam | 8th | F. Bates, USA | L. Eynon, UK |
1936 | London | 9th | F. Bates, USA | L. Eynon, UK |
1949 | Brussels | 10th | F. Bates, USA | F. Tödt, Germany |
1954 | Paris | 11th | F. Bates, USA (to 1953) | G. Payne, UK |
| | | H.C.S. de Whalley, UK (from 1954) | D. Gross, UK |
1958 | Washington | 12th | H.C.S. de Whalley, UK | D. Gross, UK |
1962 | Hamburg | 13th | H.C.S. de Whalley, UK | D. Gross, UK |
1966 | Copenhagen | 14th | J. Dubourg, France | R. Saunier, France |
1970 | London | 15th | J. Dubourg, France (to 1969) | R. Saunier, France |
| | | A. Carruthers, UK (from 1970) | |
1974 | Ankara | 16th | A. Carruthers, UK | D. Hibbert, UK |
1978 | Montreal | 17th | A. Carruthers, UK | D. Hibbert, UK |
1982 | Dublin | 18th | E. Reinefeld, Germany | A. Emmerich, Germany |
1986 | Cannes | 19th | E. Reinefeld, Germany | A. Emmerich, Germany |
1990 | Colorado Springs | 20th | M.R. Player, Austtralia | E. Whaymann, Australia |
1994 | Havana | 21st | M.R. Player, Australia | R.J. McCowage, Australia |
1998 | Berlin | 22nd | M.R. Player, Australia | R.J. McCowage, Australia |
2002 | Pune | 23rd | G. Vaccari, Italy | G. Mantovani, Italy |
2004 | Atlanta | 24th | G. Vaccari, Italy | H. Puke, Germany |
2006 | Aguas de São Pedro | 25th | G. Vaccari, Italy | H. Puke, Germany |
2008 | Delray Beach | 26th | G. Parkin, UK | H. Puke, Germany |
2010 | Berlin | 27th | G. Parkin, UK | H. Puke, Germany |
2012 | Cambridge | 28th | G. Parkin, Germany | H. Puke, Germany |
2014 | Ribeirão Preto | 29th | G. Parkin, UK | H. Puke, Germany |
2016 | Warsaw | 30th | G. Parkin, UK | H. Puke, Germany |
2018 | Skukuza | 31th | G. Parkin, UK | H. Puke, Germany |
2021 | Virtual | 32nd | M. Leijdekkers, Netherlands | H. Puke, Germany |
2023 | Vienna | 33rd | M. Leijdekkers, Netherlands | H. Puke, Germany |