Turkey-US Business Council member, Member of Executive Board of TÜSİAD International, being the Vice President of the Financial Managers Association (Finance Club), he is an active member of many non-governmental organizations related to business life.

He served as President of the Turkish-American Businessmen Association (TABA Amcham), Vice President of the International Investors Association (YASED), President of the US Working Group at TÜSİAD, Executive Board Member of the Tax Council of the Ministry of Finance, Member of the Board of Directors and General Secretary of Galatasaray Sports Club. Nas is also the Chairman of the Common Purpose Association.

He is the Chairman of the Board of Target Consultancy and MN Agriculture companies and the owner of the monthly magazine Finance and Economic Interpretations.