Kajsa William-Olsson has been a member of the Royal Philharmonic Orchestra in Stockholm since 1995. As a founding member of the VITALIS and Hanna quartets, Kajsa William-Olsson has toured all over Sweden, Norway, and Finland, as well as Austria, Germany, England, and France. She performs regularly at the Konzerthus in Stockholm in various chamber music series and has made her US debut at Weill Recital Hall of Carnegie Hall. In addition, Kajsa William-Olsson teaches and performs annually at the MMCK Festival in Japan. She collaborates regularly with her husband, conductor, violinist, and violist Alan Gilbert. Kajsa William-Olsson plays a 1709 Giovanni Grancino cello.