Ismail Gülle is born at Sivas in 1960, and graduated from ITU Faculty of Electrical Engineering in 1982. He completed his expertise program in Istanbul University, Business Management and Economy Institute. He performed the Board Chairman duty in Gülle Entegre Tekstil İşletmeleri A.Ş. which was founded by his father Halis Gülle in 1970; besides Board Chairman duty in Istanbul Textile and Raw Materials Exporters Union; he continued his other duties such as Turkish Exporters Assembly Council of Sectors Membership, Istanbul Chamber of Industry Assembly Vice Chairman, Sivas Industrialists and Businessman Group Association Board Chairman. Gülle has continuing duties in Ergene – 2 Organized Free Zone Board Chairman and Board of Trustees Membership, Economic Development Foundation Board Membership, DEİK Board Vice Chairman, DEİK Executive Committee Vice Chairman, Eximbank Board Membership and he also undertaken TİM Chairman duty on 30 June 2018.