Siegfried Luther is on the board of Evonik Industries AG. In the past he held the position of Managing Director at Bertelsmann Verwaltungsgesellschaft mbH, CFO & Vice Chairman-Executive Board at Bertelsmann SE & Co. KGaA and Chairman at RTL Group SA (a subsidiary of Bertelsmann SE & Co. KGaA), Member-Management Board at Reinhard Mohn Verwaltungsgesellschaft mbH and Principal at Bayer AG.

He received a doctorate from the University of Münster.