Albright-Knox Art Gallery CCS Bard Hessel Museum Glenstone Museum Kemper Museum of Contemporary Art Museum of Modern Art Solomon R. Guggenheim Museum The Morgan Library & Museum Walker Art Center MNWexner Center for the Arts Andy Warhol Foundation for Visual Arts Dieter Roth Foundation Carolee Schneemann Foundation Ed Clark Glenstone Foundation The Estate of Gordon Matta-Clark Jack Whitten Estate Mike Kelley Foundation for the Arts Robert Rauschenberg Foundation Schaulager, Emanuel Hoffmann Foundation Guston Foundation The Josef & Anni Albers Foundation James Rosenquist Estate Keith Haring Juan Muñoz Estate Franz West Estate Flag Art Foundation Félix Gonzalés-Torres Estate Peter Brand Foundation Andrew Kreps Gallery Anton Kern Gallery Barbara Gladstone Gallery Bortolami Gallery Capitain Petzel Gallery Cheim & Read David Zwirner Gallery Dominique Levy Gallery Esther Shipper Gagosian Gallery Hauser & Wirth Jeffrey Deitch Klosterfelde Koenig & Clinton Lehmann Maupin Lisson Gallery Luhring Augustine Marianne Boesky Gallery Matthew Marks Gallery Ortuzar Projects Pace Gallery Paula Cooper Gallery Regen Projects Petzel Gallery Perrotin Skarstedt Gallery Thaddaeus Ropac Gallery Timothy Taylor Gallery Victoria Miro White Cube Christie’s Phillips Sotheby’s AIG AON Art Peritus Axa Chubb Haven Art Group Winston Art Group