Oktay Erciyaz was promoted to CEO of the Trenkwalder Group AG in May 2017. In 2017, the group had an annual turnover of €800 million with 50,000 employees and 200 offices worldwide. In addition to managing Trenkwalder Group AG, he focuses on sales, growth and business development. Erciyaz, an MBA, has more than 23 years of executive experience in international corporate and business development. He started his career at Preussag AG and held leadership positions for various units of the Bertelsmann Group, including country CEO positions in BeNeLux, Portugal and Turkey, as well as group-level executive vice president positions for corporate development and M&A.