Lawyers Doğan Coşgun

    Doğan Coşgun, who has practiced law for 25 years, joined ASC Law in 2017 to head its Dispute Resolution Department. Doğan – along with Founding Partners Murat Aksu, Zeki Çalışkan and Okan Beygo – is a key member of the most experienced, and successful, senior law firm leadership teams in Turkey.

    Since joining the firm, Doğan has spearheaded efforts resulting in a sharp increase in the number, and complexity, of the disputes matters the firm handles, including complex arbitration engagements. These developments have resulted in a several fold increase in the total amount of damages at issue in the matters ASC Law handles. Doğan’s Dispute Resolution Department now has approximately 5,000 active matters, and its approximately 50 lawyers make some 100 court appearances each week.

    Before joining ASC Law, Doğan practiced inhouse at several leading Turkish companies, most recently as Chief Legal Officer of Türk Telecom. During these 20-plus years, Doğan has worked on, or managed lawyers working on, nearly every type of business dispute imaginable, experience at the core of his success at ASC Law.

    Practice Areas & Work Department

    Dispute Resolution

    Corporate Law

    Real Estate and Lease Law

    Information and Communication Technologies


    Administrative Law

    Expropriation Law





    Aksu Çalışkan Beygo Attorney Partnership, Managing Partner (2017-Present)

    Turk Telekom, Chief Legal Officer (2014–2017)

    Avea, Chief Legal Officer (2011–2014)

    Turkuvaz Medya Grubu, Chief Legal Officer (2008–2011)

    Yıldız Holding (2000–2008)


    LL.M., Marmara University Faculty of Law, Private Law, 2003

    LL.B., Istanbul University Faculty of Law, 1996