1906
The Rt. Hon. Lord Kelvin
United Kingdom

1908
Prof. Dr. Elihu Thomson
United States of America

1911
Prof. Dr. E. Budde
Germany

1913
Mr. Maurice Leblanc
France

1919
Dr. C. O. Mailloux
United States of America

1923
Mr. Guido Semenza
Italy

1927
Prof. Dr. C. Feldmann
The Netherlands

1930
Prof. Dr. A. F. Enström
Sweden

1935
Mr. James Burke
United States of America

1938
Prof. Luigi Lombardi
Italy

1946
Mr. Emile Uytborck
Belgium

1949
Dr. Max Schiesser
Switzerland

1952
Dr. Harold Osborne
United States of America

1955
Dr. P. Dunsheath
United Kingdom

1958
Dr. I. Herlitz
Sweden

1961
Prof. G. de Zoeten
The Netherlands

1964
Prof. Dr. R. Radulet
Romania

1967
Mr. P. Ailleret
France

1970
Mr. S. E. Goodall
United Kingdom

1973
Dr. G. L. Palandri
Italy

1974
Prof. Dr. V. I. Popkov
U.S.S.R

1977
Prof. Dr. N. Takagi
Japan

1980
Mr. W. A. McAdams
United States of America

1983
Mr. A. Déjou
France

1986
Mr. G. R. C. McDowell
United Kingdom

1989
Mr. R.E. Brett
Australia

1993
Dr. H. Gissel
Germany

1996
Mr. B. H. Falk
United States of America

1999
Mr. M. R. Fünfschilling
Switzerland

2002
Dr. S. Takayanagi
Japan

2005
Mr. R. Tani
Italy

2008
Mr. J. Régis
Canada