Maurer & Wirtz: hired a new managing director. On Jan. 1, Johannes Verhoog became the head of the family-owned company that was founded in 1845. His predecessor, Bert Lehnen, stepped down after more than 40 years with the company. He will remain available as a consultant for brand and corporate strategies. Mr. Verhoog will lead Maurer & Wirtz jointly with managing partner Dr. Hermann Wirtz.