Mr Ümit Hergüner > Hergüner Bilgen Özeke > Istanbul, Turkey > Lawyer Profile

Hergüner Bilgen Özeke
LEVENT 34394

Work Department

Corporate and M&A, Infrastructure & Project Finance, and Energy


Mr. Hergüner is a founding member and the Senior Partner of the firm. Mr. Hergüner oversees the activities of multiple practice groups M&A, Infrastructure & Project Finance, and Energy practice groups.

Mr. Hergüner provides strategic advice to international clients entering the Turkish market, domestic clients investing abroad, and commercial clients engaged in complex cross-border transactions and international disputes, as well as advising all sides on large-scale infrastructure projects. He was first recognized as an innovator for cross-border transactions during his work on the intra-governmental agreement based legal regime for the Baku-Tbilisi-Ceyhan pipeline project, and has since continued to advise some of the most famous names in international infrastructure project development.


Prior to founding the firm in 1989, Mr. Hergüner was Special Counsel on Foreign Law at Reid & Priest Attorneys at Law in New York from 1985 to 1988 .


English, French, German


Mr. Hergüner is a member of the Istanbul Bar Association, the International Bar Association (IBA), and the Turkish Industrialists’ and Businessmen’s Association (TÜSİAD). He is part of the American Bar Association (ABA) where he serves as a Representative to the IBA Working Group on UN Guidelines on Human Rights and Business and is Vice Chair of the Law Office Management Committee and ABA International Associate. He is a board member of the Corporate Governance Association of Turkey (TKYD) where he also served as president from 2005 to 2007, and he is a Board Member of the International Law Institute (ILI), Washington, DC and an Advisory Council Member and former President of  International Law Institute (ILI) Istanbul Chapter. He also serves as an Advisory Member of the International Relations & European Union Center Advisory Board of the Union of Turkish Bar Associations, Türkiye Barolar Birliği (TBB).


Mr. Hergüner received his Bachelor of Laws from Istanbul University School of Law in 1979, where he also conducted Graduate Legal Studies (DEA) until 1982, as well as receiving a Master of Laws from American University Washington College of Law in 1984, and a Master of Laws from the University of Virginia Law School in1985.

Lawyer Rankings

Turkey > Commercial, corporate and M&A

(Hall of Fame)

Ümit HergünerHergüner Bilgen Özeke

Hergüner Bilgen Özeke, which is notably strong in cross-border M&A, works closely with foreign law firms in large and complex deals. It also advises clients on a standalone basis and generates work from entities in industries such as technology, telecoms, banking and real estate. In addition, it has been increasingly active in corporate transactions involving the e-commerce sector. Ümit Hergüner‘s M&A experience is complemented by his knowledge about governance issues and post-closing organisational matters. Hergüner jointly leads the group with Kayra ÜçerMert Oğuzülgen, energy sector expert Deniz Tuncel and Ufuk Yalçın.

Turkey > Restructuring and insolvency

Hergüner Bilgen Özeke has a strong capability in corporate restructurings, debt restructurings, insolvency and bankruptcy work, and liquidations of assets. Litigation is another driver of activity. The team includes Tolga DanışmanKayra Üçer, Ufuk Yalçın and Piraye Kuranel BaşolÜmit HergünerYeşim Aiı Şamlı and Deniz Tuncel are also recommended.

Turkey > Project finance/projects

Hergüner Bilgen Özeke advises on project finance and development in relation to PPPs, BOTs and build-lease-transfers (BLTs). Its work covers a wide variety of sectors, including healthcare, infrastructure, nuclear energy, oil and gas, mining and electricity. The practice covers projects in Turkey and further afield overseas, particularly the Balkans and West Africa; Aslı Budak is experienced in projects in Ivory Coast, Albania and South Africa. Ümit HergünerSenem DenktaşPiraye Kuranel Başol and Yeşim Api Şamlı are other key figures in the group. Clients include international and domestic contractors, sponsors, financiers and governmental bodies.

Turkey > Energy

Hergüner Bilgen Özeke advises on financing, M&A, greenfield development and cross-border transactions. It handles work in the oil and gas, nuclear, mining, natural gas and electricity sectors. Clients include the Baku-Tbilisi-Ceyhan Pipeline Company and South Stream Transport. Recent highlights include assisting Sunfarming with the financing of a solar plan project. Ümit Hergüner and Deniz Tuncel are the practice heads.

Turkey > Dispute resolution

Hergüner Bilgen Özeke‘s team is strong in multijurisdictional litigation and arbitration, and has a strong connection with Europe and the US. It is experienced in various types of general commercial disputes, as well as those involving employment, real estate, labour law, IP, bankruptcy and restructuring issues. It also advises on consumer claims, antitrust, real estate and tax litigation matters, among others. Elsewhere, the firm is active in the international arbitration sphere. The group is jointly led by Ümit HergünerAyşe Hergüner BilgenTolga DanışmanUfuk YalçınBige Yücelİsmet Bozoğlu and Nazım O. Kurt.