General administration is secured by the Secretary-General. Headquarters of the Society is the Central Office in Tucson, Arizona, USA.
President: R. Baumeister, Munich
President Elect: G. Manokaran, Chennai
Secretary-General: M. Witte, Tucson
Treasurer: A. Pissas, Bagnols sur Ceze/Montpellier
Other Members of the Executive Committee: M. Andrade, São Paulo; F. Boccardo, Genoa; H. Brorson, Malmö; S. Leong, San Francisco; N.F. Liu, Shanghai; S. Michelini, Rome; A. Munnoch, Dundee; M. Ohkuma, Saitama; E. Okada, Toyama; C. Papendieck, Buenos Aires; N. Piller, Bedford Park; A. Pissas, Bagnols sur Cèze/ Montpellier; J. Wilting, Goettingen.
Advisory Committee: C. Campisi, Genoa (Chair)
Young Lymphologists: M. Amore (Latin America); C.C. Campisi (Europe); L. Chen (US); K. Doi (Japan).