For the past 19 years, Stephen has been Head Of Music at Cameron Mackintosh Ltd. Productions include Les Misérables, Miss Saigon, Mary Poppins, My Fair Lady, Avenue Q, Hair, Betty Blue Eyes, Barnum, The Witches of Eastwick,  and Half A Sixpence. Stephen produced the cast albums of Les Misérables (25th anniversary), Oliver! (London), Mary Poppins (Australia), Miss Saigon (London, Holland), Betty Blue Eyes (London) and Half A Sixpence. He orchestrated and produced the soundtrack albums for the Universal Pictures film of Les Misérables, for which he was nominated for a Grammy Award.