With over 25 years of experience in the contemporary art world, John Haas brings extensive expertise in art advisory, gallery development, collection management, international art fairs, and artist relations. Based between Montreux, Miami, and New York, he works as Art Advisor at Laurent Marthaler Contemporary, contributing to the gallery’s international development, collector relations, and sales strategy.
A former gallery owner in Berlin and founder of Haas Art Advisory in New York, John has held senior positions in several respected galleries, combining strategic insight with a strong understanding of the international art market. Fluent in English, Spanish, and German, he is known for his relationship-driven approach, commitment to ethical artist representation, and ability to build lasting connections between artists, collectors, and institutions.