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H. (Hanna) Hennig MBA

Member Supervisory Board

Hanna Hennig (1969) has been appointed as a member of Eneco's Supervisory Board with effect from 15 April 2025 based on the enhanced right of recommendation (‘versterkt aanbevelingsrecht’) of the central works council.



  • Member Remuneration, Selection and Appointment Committee

Hanna Hennig has been working for Siemens AG since 2020 in the role of Chief Information Officer (CIO). Before that, she held the position of CIO of OSRAM Licht AG, having previously held various senior management roles at energy company E.ON (2009-2018), at last serving as Managing Director at E.ON Business Services. Going back further, she spent ten years with Spanish company Telefonica/ O2, including as Vice President of Business Process Engineering. Her career started with CapGemini in the mid-1990s.

Hanna Hennig studied Economics at Hannover University and has a certificate in Japanese Studies from the same university. She has the German nationality.

Current main position:



  • Chief Information Officer (CIO) of Siemens AG (Munich, Germany)
Hanna Hennig Member Supervisory Board

Other positions

  • AWS & IDC CIO Advisory Council
  • SheTransformsIT (Bitkom/ BDI Initiative) Executive Sponsor
  • CIO Foundation WHU Deputy Chair
  • VOICE Bundesverband der IT Anwender e.V. Managing Committee
  • SustainableIT.org EMEA Advisory Board