Lawyers Okan Beygo

    Okan Beygo is a Founding Partner of ASC Law. Okan Beygo– along with the firm’s other two Founding Partners, Murat Aksu and Zeki Çalışkan, and Managing Partner Doğan Coşgun – is a key member of the most experienced, and successful, senior law firm leadership teams in Turkey. Okan Beygo has practiced law for 35 years and is one of Turkey’s most well-connected lawyers, with extensive networks in Turkey and abroad, as well as being one of ASC Law’s primary rainmakers.

    Okan Beygo heads the firm’s Consultancy Team, under which the Banking and Finance, Commercial, Corporate, Debt Restructuring, M&A and Capital Markets, and Project Finance practices are found. As such, Okan Beygo has played a key role in the firm’s most significant engagements, including the recent Turkcell Shareholding Restructuring, in which ASC Law represented both Ziraat Bank, Turkey’s largest bank, with regard to restructured and original financing of more than US$2 billion, and Turkey’s Sovereign Wealth Fund, the central party to the restructuring itself. CEE Legal Matters recognized this transaction as Turkey’s 2020 “Deal of the Year”.

    Okan Beygo’s work prior to joining ASC Law, at the global White & Case law firm and inhouse at Citibank, the Turkish Garanti Bank and Doğuş Holding conglomerate, have given him in-depth expertise and know-how in, among others, banking and finance law.

    Okan Beygo has been recognized by Who’s Who Legal in 2021 as a “Global Leader” in Banking and Finance, Capital Markets and Project Finance.

    Practice Areas & Work Department

    Capital Markets

    Debt Structuring

    Derivative Transactions

    Project Finance and Infrastructure Investments

    Mergers and Acquisitions





    Aksu Çalışkan Beygo Attorney Partnership, Founding Partner (2005-Present)

    Dogus Holding A.Ş. and Garanti Bank A.Ş. (1998-2004)

    Citibank A.Ş. (1997-1998)

    White & Case LLP International (1995-1997)

    Marmara University Faculty of Law, Research Assistant, (1988-1993)


    LL.M., University of Geneva, International Law, 1993

    LL.M., Marmara University Faculty of Law, International Public Law, 1988

    LL.B., Marmara University Faculty of Law, 1986