Karen Dreyfus has distinguished herself as a recipient of many prizes both in this country and abroad including the Naumburg Viola Competition (1982), the Lionel Tertis Competition (1980), the Washington International Competition (1979), and the Hudson Valley Competition (1978). Karen Dreyfus has performed in recital with Yehudi Menuhin at Carnegie Hall and has also collaborated with such artists as Rudolf Serkin, Alexander Schneider, Leon Fleisher and Chick Corea. Karen Dreyfus joined the faculty of the Juilliard School and the viola faculty of the Manhattan School of Music. In 2013, Karen Dreyfus joined the USC Thornton faculty where she teaches viola and is Director of Chamber Music.