National Science Foundation | Ford Foundation | Rockefeller Foundation | John Simon Guggenheim Memorial Foundation | Electronic Frontier Foundation | Bill & Melinda Gates Foundation | New York Foundation for the Arts | Mozilla Foundation | Guggenheim Foundation | Alexander von Humboldt Foundation | Andrew W. Mellon Foundation | Wikimedia Foundation | Apache Software Foundation | foundation | Make-A-Wish Foundation | John D. and Catherine T. MacArthur Foundation | Clinton Foundation | Open Software Foundation | Konex Foundation | Foundation series | Cystic Fibrosis Foundation | Carnegie Foundation | Solomon R. Guggenheim Foundation | McKnight Foundation | Japan Foundation | Ingram Merrill Foundation | Helms Foundation College Basketball Player of the Year | Free Software Foundation | Calouste Gulbenkian Foundation | British Heart Foundation |
He is or has been chairman of cultural causes like Maison de la Radio Flagey s.a. and Flagey asbl, and board member of Quartier des Arts asbl, the International Queen Elisabeth Music Competition, of Europalia International vzw, the Vlaamse Academische Stichting vzw, and of the Francqui Foundation (Public Benefit Foundation).