Suheil H. Sabbagh, Chairperson

Suheil H. Sabbagh holds a B.Sc. in Computer Science from Webber University, USA and is currently the President of Human Resources of a leading international and regional group in the construction section of Consolidated Contractors International Company (CCC), of which he is a major shareholder.

On a personal level, he is involved in many humanitarian projects both in Greece and abroad and is a patron of many charity organizations. Mr. Sabbagh is married and has three children.

Timothy Ananiadis, Vice Chairperson

Timothy Ananiadis was born and raised in Greece and at the age of 17 went to Canada to study Business Administration at Ryerson University in Toronto, subsequently moving to the USA where he started his career in the hospitality industry.

He has 30 years of international experience in the hospitality industry, mainly with Hyatt Hotels Corporation and Hyatt international where he started his career at the Hyatt Regency Atlanta and subsequently held the position of Director of Food and Beverage in several hotels (including Hyatt Regency New Orleans, Hilton Head, Nashville, Buffalo, NY, and Columbus, OH). In 1988 he moved to Chicago as the Corporate Director of Food and Beverage for Hyatt hotels with main responsibilities menu engineering, product development, recruitment, development and implementation of service standards and training, concept development and hotel pre-opening support.

As General Manager he held positions in USA at the Hyatt Regency Pittsburgh, Hyatt Regency Coral Gables and Hyatt Regency Miami. In 1999 joined Hyatt International as the General Manager of the Hyatt Regency Thessaloniki and later moved to India as the General Manager of the Grand Hyatt Mumbai.

In 2003 he joined Starwood Hotels and Resorts returning to Greece as the General Manager and Managing Director of the Hotel Grande Bretagne, one of the most historic and prestigious hotels in the world and Area Manager for Greece, Turkey and Cyprus.

Tim lives in Athens with his wife Jennifer and their two young sons, Teo and Louka while his older son Tim lives in Dallas, Texas. He is a member of several non profit and hospitality industry boards as well as internal Starwood functional boards. His business philosophy of an ideal hotel is to provide a comfortable, friendly and efficient environment for guests and associates while maximizing revenues through constant innovation and profits through proactive management.

Nicholas G. Karambelas, Vice Chairperson, U.S. Trustee

Nicholas G. Karambelas is a founding partner of Sfikas & Karambelas, LLP ( which practices law in Washington, D.C., Baltimore, Maryland, New York City, New York and has affiliated offices in Athens, Greece and Nicosia, Cyprus. He practices in the areas of business entity organization, international law and business transactions, e-commerce, securities, franchising and real estate. Mr. Karambelas has served as Special Counsel to a committee of the U.S. House of Representatives. He participated in drafting legislation for the U.S. Congress and the Council of the District of Columbia. He has written numerous articles on business entity law, Greek and Cypriot company law, securities and federal elections law as well as international law and politics. He has authored a three volume treatise entitled "Limited Liability Companies: Law, Practice and Forms" which has been published in its second edition by Thomson West Company and which is updated twice a year. He is writing electronic treatises on contract interpretation, statutory interpretation and international business transactions which will be available in 2011. Mr. Karambelas is admitted to practice law in New York, the District of Columbia , Maryland, the federal courts and the Supreme Court of United States.

Mr. Karambelas is a graduate of the American Community Schools, Inc. in Athens, Greece (Class of 1971). He holds a Bachelor of Arts (B.A.) from Union College, a Juris Doctor from Fordham University School of Law (J.D.) and a Master of International Affairs (M.I.A.) from Columbia University School of Public and International Affairs. He serves on the Publications Committee of the D.C. Bar. He served as Secretary of the D.C. Bar and a member of the Board of Governors for 2004-2005. He is an instructor in the D.C. Bar Continuing Legal Education (CLE) Program and teaches numerous CLE courses including business organization, international business transactions, Greek and Cypriot company law. Mr. Karambelas is a member of the Bar Association of the City of New York and serves on the Federal Legislation Committee. He is an arbitrator for the Superior Court of the District of Columbia.

Mr. Karambelas chairs the American Hellenic Lawyers' Society of Greater Washington, D.C. and is a member of the Hellenic Lawyers Association of New York. He serves as a director of and volunteer legal counsel to the American Hellenic Institute Foundation, Inc. in Washington, D.C.

Iraklis Prokopakis, Treasurer

Iraklis Prokopakis is the Senior Vice President, Treasurer, Chief Operating Officer and a member of the board of directors of Danaos Corporation. Mr. Prokopakis joined Danaos in 1998 and has over 37 years of experience in the shipping industry.

Prior to entering the shipping industry, Mr. Prokopakis was a captain in the Hellenic Navy. He holds a Bachelor of Science in Mechanical Engineering from Portsmouth University in the United Kingdom, a Master’s degree in Naval Architecture and a Ship Risk Management Diploma from the Massachusetts Institute of Technology in the United States, and a post-graduate diploma in business studies from the London School of Economics. Mr. Prokopakis also has a Certificate in Operational Audit of Banks from the Management Center Europe in Brussels and a Safety Risk Management Certificate from Det Norske Veritas. He is a member of the Board of the Hellenic Chamber of Shipping and the Owners' Committee of the Korean Register of Shipping.

Pascal Apostolides, Secretary

Pascal Apostolides holds a B.Sc. degree in Chemistry, a B.A. in Economic Geography and a post graduate degree in Pharmaceutical Chemistry from the University of Manitoba, Winnipeg, Canada. He also received a M.Sc. in Environmental Chemistry from the University of Stratchclyde, Glasgow, Scotland.

His long career in the pharma industry dates back in 1986 as Sales Representative in the Diagnostic Division Department of Abbott in Thessaloniki. In only two years' time he is appointed Project Manager in Athens and in 1990 he is promoted to the position of European Product Manager based in Germany. In 1996, he assumes the position of Marketing Director of Abbott Diagnostics Division in Germany, becoming the first non-German ever to hold the specific position. From 1997 up to January 2001, Pascal Apostolides joins Abbott International Division at Abbott Park in Chicago, as Commercial Director Europe.

In 2001 until the end of 2012 he held the position of General Manager of Abbott Laboratories (Hellas) and as of January 2013 after Abbott’s separation in two individual companies Pascal Apostolides becomes the General Manager of AbbVie, an independent global biopharmaceutical which retains in its portfolio innovative medicines for serious and chronic diseases.

He is alternate President of the Hellenic Association of Pharmaceutical Companies (SFEE) and Vice President of the BoD of SFEE. Member of the Executive Committee of the Pharmaceutical Research and Manufacturers of America (PhRMA) as well as President of the Pharma Committee of the Hellenic-American Chamber of Commerce (AmCham) and also Member of the BoD of AmCham.

Irene Hayes Christodoulou, U.S. Trustee


  • Bachelor’s of Science, Major Speech/Minor English - Northwestern University, Evanston, Illinois
  • Mortarboard Chapter graduate with honors
  • Seminars on Organizational Changes and Marketing Management
  • MS in Management/Minor Financial Accounting and Marketing Management – LaVerne University / graduated with top honors


  • Banking:

    - Assistant Credit Manager

    - Economics Surveys: effects of M1, M2 and M3 on developing economy

    - Accountant: payroll, A/R

    - Due diligence portfolio investments and management clients capital advisory for new clients (Alexandria Bancorp). Investment portfolios worldwide.

  • Public Relations, Advertising and Sales:

    - Business and finance magazine and consulting headhunter group

  • Professor in Business Administration/Assistant Dean and Counselor:

    - For both Bachelors and Masters Degrees at LaVerne University, Indianapolis University and taught case work studies for the OECD on behalf of the School of Business, University of Greece.

    - Taught undergraduate and graduate studies at LaVerne and University of Indianapolis such as: Marketing Management, Financial Accounting, Business Communications, Organizational Behavior and Case Studies in Business Management.

  • Financial Manager:

    - For the Papellinas Group of companies in their joint ventures with Elf Sanofi, France.

    - Matching Greek and American Accounting Standards to streamline financial data for joint venture and advising on strategies for improvement to both company and subsidiary’s directors.

  • Retail:

    - Co-owned “My Wedding SA” representative of Vera Wang and Monique L’Huillier Brands in Greece and Cyprus. Buyer for merchandise in New York, Los Angeles, and London, England. After three years had to leave due to new obligations in Toronto, Canada.

  • Currently:

    - On the Board of Directors of two companies in Toronto:

    1. Phase 3 Properties Ltd, and

    2. Minic Investments

    - Real estate holdings in Canada, Caribbean and Europe. Investments in a public capital group in Toronto with portfolios in North America, Europe and Caribbean, Equity, Insurance, private wealth and corporate investments.

Steve Dube, U.S. Embassy

Steve Dubé is pleased to join the ACS School Board for the 2019-2020 academic school year. A diplomat posted with the U.S. Embassy, Steve has two sons, Henry and Oliver, enrolled at ACS. His wife Jennifer is also a diplomat at the U.S. Embassy and together they have enjoyed postings in Italy, Korea, and China.

Steve was born and raised in Miami, Florida, and prior to joining the Foreign Service he worked in the music business managing a small record label in Chicago. He is a graduate of Northwestern University.

Nicholas T. Gialamas, U.S. Trustee

Nick Gialamas is the Area President of HUB International, a global insurance brokerage firm headquartered in Chicago, IL. Before joining HUB, Gialamas served as Chief Executive Officer of Forest Financial Group, Inc., an employee benefits consulting firm he founded in 1998. During his tenure, Gialamas led the company through a period of transformation and sustainable growth. Forest Financial Group, Inc. was acquired by HUB International in December of 2015.

Nick is also the founder and current Chief Executive Officer of Forest Capital Management, LLC a Chicago based registered investment advisory firm (RIA) focused on retirement investment services for institutional clients. Forest Capital Management, LLC has been operating since 2014.

Nick earned his Bachelor of Science degree in Business and Marketing from Northern Illinois University (NIU). He is loyal to his alma mater and stays personally involved with the University, including guest speaking engagements at the College of Business. The NIU College of Business Department of Marketing has recognized Nick's contributions by presenting him with the Alumni of the Year Award.

Nick serves on the NIU Executive Club Board of Advisors, the NIU College of Business Board of Advisors, ACS Athens Board of Trustees, as well as the Board of Advisors for the Retirement Savings Foundation in Washington D.C..

Ada Gianneskis, Member

Ada Gianneskis grew up between Toronto, Canada and Athens, Greece. She is married and a mother of two.

Ms. Gianneskis  is a marketing and communications executive with 17 years of experience and is currently the Communications Director of House Market SA (IKEA franchise for Greece, Cyprus and Bulgaria), leading all commercial and corporate communications & marketing, interior design and customer relations.

She has great marketing experience, having been both Advertising Manager and Marketing Manager of IKEA, and Brand Manager at Samsung and other electronic goods brands.

Ms. Gianneskis holds an MBA from Southern New Hampshire University, with specialization in sports marketing.

Additionally, she is a certified facilitator for inter-IKEA (senior coach) and has facilitated a significant number of training workshops (for IKEA locally and internationally, but also the Fourlis Group, AUEB etc.). Teaching and facilitating is something she is very passionate about.

During off time, she loves sports, cooking and travelling.

Vasilis G. Gregoriou, Member

Dr. Vasilis Gregoriou is the Director and Chairman of the Board at the National Hellenic Research Foundation (NHRF), ( one of the largest Research Centers in Greece with 450 researchers and an annual budget of approximately 20 million Euros. He concurrently occupies the position of Director of Research (Full Professor) at NHRF. Dr. Gregoriou is an internationally known scientist with research and managerial positions in both Greece (NHRF, FORTH-ICEHT) and the US (Advent Technologies, Northeastern, MIT, Polaroid, Princeton) over his 30 year research career so far. He is the coauthor of 3 books, 6 chapters in books, 81 refereed research papers, 137 research presentations and the co-inventor of 12 patents. He has also cofounded in 2017 the Athens Comprehensive Cancer Center (ACCC) with the help of the Helmholtz Association, the largest scientific organisation in Germany, and the German Cancer Research Center (DKFZ) in Heidelberg, Germany.

As a technology entepreuneur, Dr. Gregoriou has cofounded Advent Technologies in 2006. Advent Technologies is a world leader in the development of advanced materials and devices for energy, defense, security and aerospace applications. Advent technologies is headquartered in Cambridge, Massachusetts, USA with manufacturing facilities in Patras, Greece and R&D alliances with Northeastern University, University of Patras, and FORTH-ICET.

Dr. Gregoriou academic teaching experience spans in both undergraduate level in the US (University of Massachusetts) as well as at the graduate level in both the USA (University of Connecticut) and Greece (University of Patras). He has also served as the President of the Society for Applied Spectroscopy (SAS) in 2001. He holds a PhD in Physical Chemistry from Duke University (1993), Durham, NC, USA and was a National Institutes of Health (NIH) Research fellow holding the prestigious NRSA award at Princeton University, Princeton, NJ, USA in 1994. He has also attended the MBA program at Northeastern University in Boston, MA, USA.

Dr. Gregoriou is the Greek National Representative in the Horizon 2020 Committees for the European Research Council (ERC), the Mari Sklodowska-Curie actions (MCSA) and the Future and Emerging Technologies (FET). The Horizon 2020 is the biggest EU Research and Innovation program ever with nearly €80 billion of funding available over 7 years (2014 to 2020).

He is married to Maria Maragoudakis-Gregoriou and their 15 year old triplets all attend ACS Athens.