From one of the IEC's founders Lord Kelvin to today: all of the IEC's presidents.
The Rt. Hon. Lord Kelvin United Kingdom
Prof. Dr. Elihu Thomson United States of America
Prof. Dr. E. Budde Germany
Mr. Maurice Leblanc France
Dr. C. O. Mailloux United States of America
Mr. Guido Semenza Italy
Prof. Dr. C. Feldmann Netherlands
Prof. Dr. A. F. Enström Sweden
Mr. James Burke United States of America
Prof. Luigi Lombardi Italy
Mr. Emile Uytborck Belgium
Dr. Max Schiesser Switzerland
Dr. Harold Osborne United States of America
Dr. P. Dunsheath United Kingdom
Dr. I. Herlitz Sweden
Prof. G. de Zoeten Netherlands
Prof. Dr. R. Radulet Romania
Mr. P. Ailleret France
Mr. S. E. Goodall United Kingdom
Dr. G. L. Palandri Italy
Prof. Dr. V. I. Popkov Union of Soviet Socialist Republics
Prof. Dr. N. Takagi Japan
Mr. W. A. McAdams United States of America
Mr. A. Déjou France
Mr. G. R. C. McDowell United Kingdom
Mr. R.E. Brett Australia
Dr. H. Gissel Germany
Mr. B. H. Falk United States of America
Mr. M. R. Fünfschilling Switzerland
Dr. S. Takayanagi Japan
Mr. R. Tani Italy
Mr. J. Régis Canada