Stephan Sieber was appointed CEO of Unit4 in 2016. He joined Unit4 in 2014 with responsibility for driving strategy and corporate development. He became responsible for global sales operations in 2015. Stephan previously worked for SAP where he held multiple leadership positions over more than 10 years including Managing Director of SAP Switzerland and Chief Operating Officer of the region DACH (Germany, Switzerland and Austria). He was also a member of the management team of SAP Germany.