Board of Directors

Stergioulis Grigoris - Chairman & CEO

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.

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.

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.

Charalambos Kasimis - Member of the Board

Charalambos Kasimis is a Professor of Rural Sociology at the Department of Agricultural Economics and Rural Development of the Agricultural University of Athens. In March 2015, he was appointed as Secretary General of Agricultural Policy and Management of European Funds of the Ministry of Rural Development and Food, in charge of CAP, Rural Development and Fisheries Development Programmes of Greece as well as International Relations.

He has served as the Head of the Department of Agricultural Economics and Rural Development (2013-2014) and as the Director of the Postgraduate Studies MSc. Programme “Integrated Rural Development and Management of Rural Space” (2010-2014). Between September 2014 and March 2015 he was appointed as Deputy Rector of the Agricultural University of Athens. In the period 1986-2003 he served as a member of staff at the Department of Economics of the University of Patras and between 1995 and 2000 as the Director of the Institute of Urban and Rural Sociology at the National Centre for Social Research. For a number of years, he served as a member of the Executive Committee of the European Society for Rural Sociology and between 2013 and 2015 as President.

His academic interests focus on issues of rural transformation and development in Greece, the Balkans and the Mediterranean region and more particularly on family farming, employment and rural community change. Migration and, more precisely, the implications of international migration on rural regions have become one of his main research topics in the past years. Recently, he has been dealing with the study of the implications of the economic crisis upon the rural areas and the ‘return to the land’ movement in Greece.

Since 2016 Charalambos Kasimis is a member of the Governing Board of International Center for Advanced Mediterranean Agronomic Studies (CIHEAM).

Ioannis Brachos - Member of the Board

Ioannis Brachos was born in 1962, in Athens. He studied Economics at the Economics Department of the University of Athens and at the University of London (Queen Mary College).

He holds a PhD in Eeconomics and has worked as an academic in the Economics Department of the University of Athens and in the private sector.

He is a Ministry of Foreign Affairs Expert Minister Counsellor on Economic and European affairs. During his career he has handled, among other things, issues related to the formulation of the European Union’s Cooperation Agreements with third countries and the economic dimension of climate change. As head of the economic unit of the Permanent Representation of Greece to the EU (starting in 2015), he dealt with financial, taxation and customs matters, as well as state aid, EU budget and Brexit financial issues.

He is married and has two children.

Dimitrios N. Mathios - Member of the Board

- Borned in Piraeus, Greece
- Date of birth 18/4/1954
- Married with 2 children
- Architect Engineer / University of Torino Italy.
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Mathios Refractories S.A.
 Managing Director in Mathios Refractories S.A. which is specialized in production and trade of refractory and building materials with exports in over 120 countries worldwide. The company is listed in the Athens Stock Exchange, and has facilities in Greece, Bulgaria and Germany.

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Institutional Representation

  • President of Federation of Attica and Piraeus Industries.
  • Vice President in Piraeus Chamber of Commerce and Industries.
  • X-Vice President of Mediterranean Union of Commerce and Industries.
  • Vice President of the Greek - Slovenian Chamber of Commerce.
  • Vice President of the Association of Interprofessionnals Employers Businessmen (BECC).
  • Member of the Board Enterprise Greece.
  • Member of the Board of Hellenic Production.
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Speaking Languages: Greek, English and Italian.

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