Hauser & Wirth | 55,646 followers on LinkedIn. Hauser & Wirth was founded in 1992 in Zurich by Iwan Wirth, Manuela Wirth and Ursula Hauser, who were joined in 2000 by Partner and President Marc Payot. A family business with a global outlook, Hauser & Wirth has expanded over the past 29 years to include outposts in Hong Kong, London, New York, Los Angeles, Somerset, Gstaad, St. Moritz, Southampton (NY), Menorca, and Monaco.