Fergus has also conducted the National Youth Orchestra Sinfonietta and, earlier this year, his first opera, Handel's Xerxes, for the newly formed Fitzwilliam Chamber Opera company, with two performances in Cambridge and two at the Theatre Royal in Bury St. Edmunds. In August 2008 he was selected as one of only three conductors to work with Pierre Boulez at the Lucerne Festival Academy. He has also led performances at St. John's Smith Square in London, the CBSO Centre and the Royal Northern College of Music, and, for the past two summers, the Consonance Players at the Edinburgh Fringe Festival.