Board Member of the Hellenic Association of Maritime Lawyers, Board Member of the Hellenic Association of Maritime Law, legal counsel of the Board of the Hellenic Maritime Environment Protection Association (Helmepa), legal counsel of the Hellenic Shortsea Shipowners Association, member of the Piraeus Marine Club, member of the Yacht Club of Greece, member of the International Propeller Club of the United States International Port of Piraeus Greece, Former Deputy Governor of the Social Pension Fund (IKA) and regular member of the Institute of Democracy “Konstantinos Karamanlis” and the Shipping Committee of the New Democracy Party (ND). Nikos is also member in numerous Associations, General Secretary of the Greek-Azerbaijani Chamber and member in many bilateral Chambers of Commerce, as well as in professional and scientific working committies. He has attended a great number of local and international seminars, conferences and he has published various commentaries and articles in legal periodicals.