Marisa del Re founded and directed the "Marisa del Re Gallery" in New York City from 1969 to 2001, representing exclusive international artists: Arman, Karel Appel, Robert Indiana, Conrad Marca-Relli, Valerio Adami, Bettina Werner, Arnaldo Tomato, Jean Michel Folon, Sacha Sosno, Robert Cottingham, Kenzo Okada, Richard Pousette-Dart, DuaneHanson, George Tooker, Rodney Ripps, Robert Motherwell, KH Hodicke and others.
Her important contribution to the artistic and cultural life of New York is reflected in the organization of countless successful exhibitions, both in her gallery and in the most important American museums: Paul Klee, Wassily Kandinsky, Alexander Calder, Andy Wahrol, Giorgio De Chirico, Jean Arp, Lucio Fontana, Joseph Beuys, Tom Wesselman, George Segal, Jasper Jones, Roy Lichtestain, Robert Rauschenberg, James Rosenquist and others.
From 1978 to 1997, at the invitation of S.A.R. Prince Ranieri of Monaco, creates, directs and organizes the "Sculpture Biennial of Montecarlo" which sees the participation of all the greatest sculptors of the international scene, with monumental sculptures, set up in the most representative public spaces of the city. Her experience and expertise led her to be recognized as one of the most important figures in the international art market.
Today, with "Marisa del Re Arte" it is an essential reference point for the evaluation, exhibition, and sale of recognized masterpieces of pictorial and sculptural art.