Kees Weeda is Chairman of the Board of Trustees of Witte de With Center for Contemporary Art. He is also active as chairman of the board of the Zina Foundation (Amsterdam) and the Follow-a-Muse Foundation (Amsterdam), and he is Chairman of the Board of Trustees of Storm - Tweetakt/Kaap Foundation (Utrecht) and the Schwalbe Foundation (Amsterdam). In Rotterdam he is also a member of the Board of Trustees of Centrale Discotheek Foundation, the LantarenVenster Foundation, the Conny Janssen Danst Foundation, the AVL Mundo Foundation, the Ronde van Katendrecht Foundation, the Pierre Bayle Prijs voor Kunstkritiek Foundation, the Rotterdam Design Prize Foundation, and Rotterdam Connection Foundations/ John Buijsman Producties.