Eldest son of Rahmi Koc and chairman of the board of industrial group Koc Holding since 2003. On the billionaires list for the first time. He received a B.A. in business administration from George Washington University in 1984. Into wildlife photography, which he took during an African safari. Exhibition his photos in June 2010. Brothers Mehmet Omer and Yildirim Ali Koc, aunts Suna Kirac and Semahat Arsel and his father Mustafa Rahmi Koc are also billionaires. Senior statesman of Turkish industrialists, ran Koc Group until 2003. Now serves as honorary Chairman of Koc Holding. Received numerous awards over the years from the German, Italian and Turkish governments; also recipient of five honorary doctorates. Spent two years traveling the world on his yacht after he retired. Avid sailor still spends months calling on ports around the world on his luxury yacht. Member of both the Istanbul Ocean Racing Club and the New York Yacht Club. His sisters Semahat Arsel and Suna Kirac and his sons Mustafa Vehbi, Mehmet Omer and Yildirim Ali Koc are also billionaires.