エルサレム総主教庁
In non-governmental positions, Theros served as the President, US Qatar Business Council, Washington, 2000-2017; General Partner, Theros &amp; Theros LLP, Washington; Representative of the Greek Orthodox Patriarch of Jerusalem to the United States; Member of the Board of Advisors, Center for Contemporary Arab Studies, Georgetown University in Washington; Former Member of the Board of Directors, Qatar Foundation International; Member of the Council on Foreign Relations; Member of the Arab American Bankers Association of America; Member of the Washington Institute of Foreign Affairs; and Owner's representative, West Bank-Gaza-Jordan Fund. Member of the Order of St. Andrew.