Norbert Winkeljohann is a German businessperson who has been at the head of 5 different companies and currently holds the position of Chairman for Sievert AG, Chairman-Supervisory Board of Bayer AG and Co-Chairman-Supervisory Board at heristo AG. Dr. Winkeljohann is also on the board of Deutsche Bank AG and Georgsmarienhütte Holding GmbH.

In the past Dr. Winkeljohann was Member-Network Leadership Team at PricewaterhouseCoopers International Ltd. Chairman-Management Board at PricewaterhouseCoopers GmbH Wirtschaftsprüfungsgesellschaft, Chairman-Management Board at Pwc Europe SE Wirtschaftspruefungsgesellschaft and Member-Management Board at PricewaterhouseCoopers AG Wirtschaftsprüfungsgesellschaft (which are all subsidiaries of PricewaterhouseCoopers International Ltd.) and Executive Partner at Societâts Treuhand GmbH.

Dr. Winkeljohann received an undergraduate degree from the University of Münster and a doctorate from the University of Hagen.