He is General Manager of REMONDIS Aqua International GmbH in Luenen, Germany and is responsible for M&A, business development and competitive proposals for international water related activities (PPP, BOT, O&M).Dr. Dirk Wittenberg, a German national, was born on 17th of July 1960. He obtained the academic qualification to doctorate degree level in civil engineering (Dr.-Ing.) in 1992 at the University of Hanover, Germany. After working for different companies in Berlin and Essen he joined REMONDIS Aqua in 2007.