Since the beginning of the 1980s, Józef Grabski has co-created or provided advice on the creation of many international collections, both for private individuals and for institutions; among these are the Barbara Piasecka Johnson Collection (Johnson & Johnson, New Jersey, USA), H. Abel Collection in Munich, the Gordon Collection in London, and the Meyer Collection in Zurich.

Drawing on Józef Grabski’s extensive experience in this field, IRSA acts as consultant and helps clients to build up their collections and gives advice on dealing in Polish and foreign art, both Old Masters and contemporary artists.