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

In the past he 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.

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