Werner Wenning is on the board of Siemens AG and Henkel Management AG.

In the past Mr. Wenning was Chairman-Supervisory Board at E.ON SE, Chairman-Supervisory Board of Bayer AG Managing Director at Bayer Hispania SL and Manager-Finance & Accounting at Bayer SA (Peru) (both are subsidiaries of Bayer AG), Vice President at Bundesverband der Deutschen Industrie e.V. and Vice President at Verband der Chemischen Industrie eV.