H&R Wasag AG / H&R AG
CFO
Tipp24 Services Ltd.
CFO
Maternus-Kliniken AG
Supervisory Board Member
Paustian airtex GmbH
CEO
Sahara Holdings Limited
Member of the Board of Directors
EY
Accountant
Alphapet Ventures GmbH
CFO
Wilhelmshavener Raffineriegesellschaft Mbh
CFO
Louis Dreyfus & Cie. Mineralöl GmbH
Controller and CFO
Hamburgische Landesbank
Universität zu Köln