Knoll, Inc is a design firm that produces office systems, seating, files and storage, tables and desks, textiles (KnollTextiles), and accessories for the office, home, and higher education settings. The company manufactures furniture for the home by Ludwig Mies van der Rohe, Harry Bertoia, Florence Knoll (Florence Schust), Frank Gehry, Maya Lin and Eero Saarinen under the companys KnollStudio division. Over 40 Knoll designs can be found in the permanent design collection of The Museum of Modern Art in New York City. The company was founded in New York City in 1938 by Hans Knoll. Production facilities were moved to Pennsylvania in 1950. After the death of Hans in 1955, his wife Florence Knoll took over as head of the company. The company is headquartered in East Greenville, Pennsylvania and has manufacturing sites in North America (East Greenville, Grand Rapids, Muskegon, and Toronto) and Italy (Foligno and Graffignana). In addition, the company is listed on the New York Stock Exchange (NYSE) and trades under the symbol:KNL. In 2011, Knoll received the National Design Award for Corporate and Institutional Achievement from the Cooper Hewitt, Smithsonian Design Museum.