SANAA (Sejima and Nishizawa and Associates) is a multiple award-winning architectural firm based in Tokyo, Japan. It was founded in 1995 by architects Kazuyo Sejima (1956) and Ryue Nishizawa (1966), who were awarded the Pritzker Prize in 2010. Examples of their work include the Toledo Museum of Art's Glass Pavilion in Toledo, Ohio; the New Museum of Contemporary Art in New York; the Rolex Learning Center at EPFL in Lausanne; the Serpentine Pavilion in London; the Christian Dior Building in Omotesandō, Tokyo; the 21st Century Museum of Contemporary Art in Kanazawa; and the Louvre-Lens Museum in France.
Source: Wikipedia