Andreas Shiamishis

Mr. Shiamishis is Chief Executive Officer and Executive Board Member. He joined HELLENiQ ENERGY in 2005.  

Ανδρέας Σιάμισιης
Chief Executive Officer, Executive Board Member


Holds an Economics degree specializing in Econometrics, from the University of Essex and is a Fellow (FCA) member of the Institute of Chartered Accountants in England and Wales (ICAEW).

He began his career in 1989 with KPMG in London, specializing in banking and large multinational Groups before joining the international food and drink group DIAGEO in 1993, to assume senior Greek and European positions in Finance and Business development. During 1998-1999, he also worked for the development of the food sector business (Pillsbury) in Middle East and North Africa. Between 2000 and 2002, he worked as Chief Financial Officer and Chief Restructuring Officer in an ASE-listed high-tech company (part of LEVENTIS Group) and in 2003, he joined PETROLA HELLAS as Chief Financial Officer.  

After the legal merger and operational integration of PETROLA HELLAS with HELLENIC PETROLEUM, he was appointed as CFO of the new Group in 2005 and became a member of the Group’s Executive Committee. In 2012, he assumed the responsibility for international subsidiaries. and he was Deputy CEO during the period 2014-2015 and 2017- 2019, when he became CEO.  

He is a founding member of the American Hellenic Chamber of Commerce (AMCHAM) board of Corporate Governance and is also a member in a number of professional bodies including the Economic Chamber of Greece and ICAEW specialized faculties. In 2020, he was elected in the BoD of the Hellenic Federation of Enterprises (SEV) and from June 2021 he is the President of the Business Council for Sustainable Development (SEV VIAN).