Contributors Aksu Çalışkan Beygo Attorney Partnership (‘ASC Law’)

    Contact Information
    • Address: Esentepe Mh. Harman1 Sk. No:5 Harmancı Giz Plaza Kat: 3-8-15-16-17 34394 Şişli, İstanbul
    • Email: [email protected]
    • Phone: +90 (212) 284 98 82
    • Website:

    AT a Glance

    AKSU ÇALIŞKAN BEYGO ATTORNEY PARTNERSHIP (‘ASC Law’) is a leading full-service Turkish law firm uniquely organized into Consultancy, Dispute Resolution and Debt Collection & Enforcement Departments. Bringing together nearly 90 highly-qualified attorneys, with more than 200 employees in total, ASC Law has been serving domestic and international clients since its founding in 2001. ASC has extensive experience in the structuring of complex, high-value transactions, as well as handling some of Turkey’s most highly-contested disputes. As such, ASC represents a variety of major corporations, banks and financial institutions located in Turkey and abroad from such diverse sectors as, among others, finance, energy (including renewables such as hydro, wind, biomass and solar), telecommunications, real estate, construction, transportation and retail. Many of the matters ASC Law handles, whether transactional or litigation, involve cross-practice efforts – e.g., where attorneys from the firm’s three departments work together – so as to take full advantage of the firm’s deeply-experienced, multi-disciplinary, professionals.


    No Turkish law firm’s upper management has the breath, depth or effectiveness of ASC Law’s. Each of our three Founding Partners – Murat AKSU, Zeki ÇALIŞKAN and Okan BEYGO – has practiced law for at least 30 years, with our Managing Partner, Doğan COŞGUN, having practiced for more than 25 years. Moreover, prior to joining ASC Law, all four gentlemen had successful careers working in-house at local and international banks, and/or other major Turkish companies, giving them, in addition to wide-ranging experience and networks, invaluable insights into the needs of the firm’s clientele. Since joining ASC Law, our top leadership has shared in the effort to develop a multi-disciplinary firm, which has allowed specialization much more quickly than most Turkish law firms. ASC Law is now – and has been for quite some time – an extremely versatile firm, with several practice areas fairly described as among the most sophisticated in Turkey.

    Main Practice Areas

    • Administrative Law
    • Banking, Finance & Capital Markets
    • Bankruptcy & Insolvency
    • Building & Construction
    • Criminal Law
    • Commercial, Corporate & Business Law
    • Competition & Consumer Law
    • Constitutional Law
    • Contract Law
    • Dispute Resolution, Litigation & Arbitration
    • Employment
    • Energy
    • Family Law
    • Immigration Law
    • Intellectual Property & Technology
    • International Law
    • Insurance
    • M&A, Joint Ventures
    • Project Finance
    • Public Law
    • Tourism & Hospitality

    Key Contacts


    International Projects & Business Development
    Debt Structuring, Acquisition Finance, Project Finance and Infrastructure Investments, Energy and Natural Resources, Privatization
    Banking and Finance, Capital Markets, Derivative Transactions, Mergers and Acquisitions, Corporate Law
    Banking, Finance & Capital Markets, Commercial & Corporate, Debt Restructuring, M&A, Project Finance