Geoffrey Sauer has been appointed chief executive officer and president of Messe Düsseldorf North America (MDNA), effective Aug. 17. He will lead the Chicago-based subsidiary’s operations and growth across North America. Sauer brings more than 20 years of leadership experience in the international tradeshow, media, and technology sectors. He spent much of his career with … Continue reading Geoffrey Sauer Named CEO of Messe Düsseldorf North America