Drees & Sommer AG
Diana Wiedmann currently serves as the Chief Human Resources Officer at Drees & Sommer and as the Chair of the Supervisory Board at Nahwärme Gräfensteinberg. Previous roles include Senior Vice President of HR at Rentschler Biopharma SE and HR Director at Vertex Pharmaceuticals, where responsibilities encompassed HR leadership for multiple regions, talent management, and supporting high growth environments. Diana's career also features positions at Aspen Global, Siemens Financial Services, and Siemens, with a diverse background in project management, strategic HR management, and organizational development. Diana's academic credentials include an MBA from the University of Wales, along with various qualifications in HR and business management from recognized institutions.