Gábor Hollerung has been hosting conductor courses in Hungary and abroad every year since 1986. He has performed as guest conductor all over Europe, but he is also frequently on stage at the concert halls of Israel and Taiwan and the United States.
He has performed in the Concertgebouw Amsterdam, the Royal College of Music London, the Frankfurter Alte Oper, the Wiener Konzerthaus, the Palau de Musica Valencia, the Sydney Opera House and the Taipei National Concert Hall. In 2002 the Symphonic Orchestra of Jerusalem appointed him First Guest Conductor. In May 2004 he was invited to Rio de Janeiro, in November 2004, on six occasions he conducted the Israel Philharmonic Orchestra, the ensemble of Zubin Mehta, in Tel-Aviv and in January 2005 he worked with the orchestra I Pomeriggi Musicali in Milan. In 2006, he conducted Orchestra di Extremadura, the Sofia Philharmonic Orchestra, the Israel Camerata, the Israel Chamber Orchestra and the Orchestra Sinfonica di Roma. In 2007 he was invited to work with the Quebec Symphony Orchestra and the Kasseli Staatstheater orchestra.