Johannes Teyssen is a German businessperson who has been at the helm of 10 different companies. Presently, Dr. Teyssen holds the position of Chairman-Management Board at E.ON SE and Chairman-Supervisory Board at innogy SE (a subsidiary of E.ON SE). Dr. Teyssen is also on the board of Nord Stream AG and Member-Presidential Board at Bundesverband der Deutschen Industrie e.V.
In his past career Dr. Teyssen held the position of Chairman-Supervisory Board of Eon Energy Trading AG, Member-Management Board at Hastra AG, Chairman for E.ON US Investments Corp., Chairman-Supervisory Board at E.ON Hanse AG, Chairman-Supervisory Board at E.ON Energy Trading SE, Chairman-Management Board at E.ON Energie AG, Chairman-Management Board at Avacon AG, Member-Supervisory Board at E.ON Ruhrgas AG, Head-Legal Affairs at PreussenElektra AG and President for Union of Electricity Industry.
He received a graduate degree from the University of Freiburg and an undergraduate degree and a graduate degree from the University of Gottingen.