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The firm

Hergüner Bilgen Özeke (Hergüner) is one of the largest full-service independent law firms in Turkey, and it continues to grow. Hergüner provides expert legal counsel, serving as a trusted commercial advisor to major domestic and multinational corporations, international and multilateral financial institutions, and private individuals. The firm is also currently expanding its Central and Far East Asia practice to represent clients from the Caspian Sea to the Pacific Rim.

Areas of practice

Corporate/M&A: Hergüner has a long standing reputation as a leader in the Turkey’s most complex and important domestic and cross-border transactions. This depth of experience enables the Hergüner team to help its clients make savvy investment decisions. Recent deals include: BeIn Sports’ acquisition of Digitürk (the largest in Turkish media market history); Verbund’s sale of EnerjiSA to E.ON, (a mega deal for Turkey); Delivery Hero’s acquisition of Yemeksepeti, (the largest e-commerce deal in Turkey); and Naspers’ purchase of Markafoni, (also a sizeable Turkish e-commerce deal).

Banking, finance and capital markets: Hergüner is involved in the most prominent billion dollar banking and finance transactions in Turkey, including Islamic financing. The firm advised Türk Telekom on the largest Turkish landmark foreign corporate bond issuance ever. They arranged for HEPP financing for Kalehan through a first-of-its-kind consortium of the most prominent Turkish banks, and assisted affluent lenders in financing EnerjiSA’s projects totaling €5.5bn. The firm also represents both sponsors and lenders for Otoyol, with a loan amount of up to $5bn.

Energy and infrastructure: Hergüner is an innovator in financing and contracting for the energy market’s leading projects. The Turkish Stream project is of prime importance to the firm. Hergüner also advised on the two largest non-recourse BOT project finance infrastructure deals to close this decade, as well as representing the principals in the largest Turkish infrastructure projects ever, including the Gebze Izmir road project, involving one of Europe’s longest suspension bridges, and the Istanbul straight road tunnel crossing project connecting Europe to Asia.

Hergüner constantly seeks out new PPP projects, and handles some of the largest healthcare projects in Turkey. The firm offers unparalleled expertise in the extractive industries, and power plant development, and advises on LNG, renewable energy and nuclear projects. Clients include: Turkish Stream, HESS Energy, Praxair, Üründül Enerji Group, and RES.

Dispute resolution: Hergüner provides strategic dispute management, litigation and arbitration, for commercial, contractual, employment, white-collar, bankruptcy, corporate governance and family matters. The firm defends companies in the construction, infrastructure, FMCG, retail, and energy sectors, and provides enforcement of foreign arbitral awards, set aside proceedings, and ICC arbitrations. It represents one of the world’s top five resin producers, and BTC Pipeline Company, Greif, Proctor & Gamble, Pigeon, Eaton, and Mitsubishi Heavy Industries.

Competition: Hergüner offers antitrust risk management by providing multidimensional merger filings and investigations to advise clients on complex competition matters. The firm’s experience on every side of the antitrust table allows it to offer clients a comprehensive grasp of counter-party and Competition Authority movements to safely navigate the ever-changing and foggy realm of antitrust law. Clients include: Essilor, UPS, ArcelorMittal and Hitachi.

Real estate: Hergüner is a premier firm for real estate, representing the world’s leading international retailers, real estate funds, and developers; based locally, or in the US, Europe and the UAE; and developing large-scale shopping centres, offices, residential complexes, urban regeneration projects, city-size tourism facilities, commercial leases, and port facilities. Clients include: Pramerica, Wafra, Prime Development Union Invest, Aerium, VastNed, Merrill Lynch, Extensa, ECE and ADIA.

IP, technology and telecommunications: Hergüner specialises in licensing, operators interconnecting, roaming and other services, and has advised NBC Universal and Bloomberg in the due diligence for a major strategic investment in a Turkish digital platform operator. Clients Include: NEC, Nikon, Panasonic, Sharp, Sony, Barco NV, and DP World.

ContactsÜmit Hergüner (senior partner)
Ayse Hergüner Bilgen (co-managing partner)
Kemal Mamak (co-managing partner)


MemberWorld Law Group
International Attorneys Club
International Bar Association
American Bar Association
US European Network

Number of lawyers 94

Above material supplied by Hergüner Bilgen Özeke.

Legal Developments by:
Hergüner Bilgen Özeke


    Dispute resolution and settlement procedures are becoming increasingly important in this time of global financial crisis, particularly in the commercial field. Consequent to the need for specialized legal counsel to prevent further disputes by structuring investments and partnerships appropriately, post-transactional litigation advice and insight into Turkish procedural law applicable to dispute resolution have become more relevant to foreign investors in Turkey. This article provides a general overview of the Turkish judiciary's structure, as well as a summary of the fundamental principles of Turkish civil procedure.
    - Hergüner Bilgen Özeke

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