Marcel Sieke is a core member of Boston Consulting Group's Operations practice focusing on supply chain management. He is an expert on supply chain strategy, artificial intelligence (AI), digital supply chain, advanced planning, and after-market supply chains.

Since joining BCG in 2017, Marcel has led major supply chain transformations across industries, with a focus on consumer goods, health care, chemicals, aviation, and other companies from the industrial goods sector. Prior to joining the firm, Marcel was a Partner at Barkawi Management Consultants in Munich for eight years.


  • PhD, supply chain management and operations research, University of Cologne and École Polytechnique Fédérale de Lausanne (EPFL)
  • MSc, management information systems, University of Münster and University of Illinois at Urbana-Champaign
  • BSc, management information systems, University of Münster