Board of Directors

Stergioulis Grigoris - Chairman

Grigoris Stergioulis was appointed Chairman of Enterprise Greece in June 2018. He is a chemical engineer and holds a Master’s degree in Advanced Integrated Design from the Houldsworth School of Applied Sciences, University of Leeds in the UK, from where he graduated with distinction. He has  extensive professional experience in the oil industry and has worked in various companies both in Greece and abroad.

Since 1984 he has held various managerial positions in different areas of the Hellenic Petroleum Group. He was a member of the management team responsible for the upgrade of the Aspropyrgos refinery during the period 1984-1987, where he was assigned several design and process activities, mainly in process control and production optimization. During the period 2008-2014, he was the Project Coordinator for the upgrade of the Elefsina refinery.

In May 2015, Mr. Stergioulis was appointed as Managing Director of Hellenic Petroleum SA, a position he held for three years.

He has published several technical articles on topics such as Process Control, Optimization and Advanced Control Systems. He is the author of a book entitled: “The Oil Market in Southeast Europe", published by the Institute of Energy of South-East Europe and the Greek General Confederation of Labor. He has participated as a speaker in many conferences.

Since February 2017, Mr. Stergioulis sits as a Councilor of the General Council of the Bank of Greece, while in June 2018, he was appointed to the Board of Directors of  LARCO.

He speaks English and French.

Mandalas A. Ioannis - Vice Chairman

John Mandalas was born 1962 at Chios Island and is the managing Director of the listed in Athens stock company MEDITERRA SA_mastihashop. Since 2001, is involved in the mastiha business development when the board of the Chios Mastiha Growers Association asked him to take over the reengineering of the mastiha's Cooperative. Having studies in business administration and teaching at University of Piraeus and Aegean worked in several enterprises as financial and commercial director in Athens.

Athanasiou Α. Elias - Chief Executive Officer

Elias Athanasiou was appointed CEO of Enterprise Greece in May 2017. He has more than 20 years of experience working in the private sector in various industries, including insurance, finance and gaming & leisure. During his professional career he has worked for major multinational corporations, being part of the senior management team at the headquarters overlooking global businesses and international expansion. He has been involved in complex international transactions, mergers & acquisitions, fund raising through local and international capital markets (equity, straight & convertible bonds), working closely with various Stock Exchanges around the Globe and major international corporate and investment banks. Moreover, he has worked on green field business development projects and exports to more than 40 international markets, spanning throughout all continents. He holds a B.Sc. in Marketing from ULV California Sum Cum Laude, a M.Sc. in Finance from the University of Strathclyde and the international professional investment accreditation, CFA.

Antoniou G. Margarita - Member of the Board

Margarita Antoniou: Born in Athens in 1957. Educated as a Chemical Engineer at the National Polytechnic School of Athens.

Five years experience in the private sector (processing industries and projects on environmental issues). Since 1985 public servant in the ex Ministry of National Economy (now Ministry of Economy, Infrastructure, Maritime and Tourist).

Seven years experience on control and evaluation of private investments, two years on ministerial strategic planning, ten years on European support framework and programmes (Central Managing Authority and Managing Authority of the Operational Program ‘Train, Airport, Urban Transportation’ ), 11 years in the Directorate of International Economic Organization and Bilateral Cooperation on trade and investment (Member of the Advisory Group of non Member Countries of the OECD Investment Committee, 2 years experience as a member of the Group Financier of the EU-Africa Infrastructure Trust Fund, reports on trade and investment issues for specific countries, ad hoc studies on specific issues concerning international cooperation etc).

Member for 7 years as an expert of the ad hoc committee in the Technical Chamber of Greece for the CSF and for development issues.

Member of a volunteer team of the Training Engineer Centre with activities in development issues implementing more than 20 events the last 3 years.

Kalpadakis E. George - Member of the Board

He is a Visiting Scholar at the Centre of Development Studies of the University of Cambridge and between 2011 and 2014 he taught at the departments of Law and Political Science of Democritus University of Thrace. Since February 2015 he has been appointed head of cabinet to the Deputy Prime Minister of Greece to whom he had previously been a special adviser.

With interdisciplinary undergraduate studies in science and technology at University College London (B.Sc. Honours) and a postgraduate degree in international relations (M.Sc.) from the London School of Economics and Political Science (Faculty of Economics), in 2009 he was awarded a PhD degree from the University of Athens' School of Economics and Political Sciences.

He has worked in research institutes among which the Hellenic Center for European Studies as a Research Fellow. He was academic secretary of Oikos, the organisation for sustainable economics and management at the LSE and was a member of the editorial group of the LSE journal "Millennium."

Zisimatos G. George - Member of the Board

George Zissimatos was born in 1962 and studied Economics and Business Administration at Deree College in Athens.

Since 1983 alongside his studies he worked in the family business firm where he remained until today Managing Director of "ZISSIMATOS SA" based in Piraeus.

He is also actively involved in the promotion of Greek enterprises in Eastern Africa.

Since 1993, he actively deals with public and common issues and was a central figure of the Piraeus Traders Association (est.1900).

From 2010 till 2014 he was the President of the Piraeus Traders Association and until 2015 he also remained an active member of the administration of various positions at the Federation of Trade Associations of Neighboring Prefectures of Attica and the Aegean Islands.

From 2012 till today he is member of the board of the National Confederation of Trade & Enterprise (ESEE)
He served as parliamentary candidate in the national elections of 2012 and 2015 and MEP candidate in the 2014 European elections.

From 2013 he is elected Secretary of Trade, SMEs & Consumption to "Independent Greeks" political organization.

Since 2015 he serves as a Special Advisor to the Ministry of National Defence responsible for Real Estate & Property Development Issues.

George Zissimatos is married with one child and speaks English and French.

Korkidis S. Vassilis - Member of the Board

Personal Information

Date of Birth: 19/12/1959
Place of Birth: Piraeus
Family Status: Married, 2 children
Address: 2-4 Fokidos, 18545 - Piraeus
Telephone: (+30) 210-4628372, 210-3259200, 6944304123
Fax: (+30) 210-4634314, 210- 3259209

Professional Status

  • President & CEO at KORKIDIS S.V.E S.A.
  • Manager of the trading company “Spyros Korkidis Bros & Co”

Social Activity

  •  President of the Hellenic Confederation of Commerce & Entrepreneurship (ESEE)
  • President of the Piraeus Chamber of Commerce & Industry (PCCI)
  •  Vice-President of the European Association of Craft, Small and Medium-Sized Enterprises (UEAPME)
  •  Member of the Board of Administration of EuroCommerce
  •  Member of the Board of Administration of ENTERPRISE GREECE
  •  President of the Committee for Industry and Shipping of the Association of Mediterranean Chambers of Commerce and Industry (ASCAME)


  • MSc International Commerce & Transport – University of Southampton, UK
  • LLM Maritime Law – University of Southampton, UK
  •  BSc Honors Shipbuilding & Ship Management – University of Southampton, UK
  •  High-school Diploma– “Saint Paul” Greek-French School of Piraeus

Other Activities

He has served as:

  • President of the Piraeus Trade Association
  • Vice-President of the Hellenic Institute for Occupational Health & Safety (EL.IN.Y.A.E.)
  • Vice-President of the Piraeus Association of Commercial Agents & Distributors (SEAP)
  •  Member of the Board of Administration of the Piraeus Port Authority S.A.