About Us

A law firm built on the principle that legal support begins not at dispute, but at the decision-making stage — serving domestic and foreign clients from Istanbul, İzmir, and Washington D.C.

YEARS OF HERITAGE
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Global Offices
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Total Case Value
$ 0 B
Bar Admissions
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Who We Are

İlhan, Üstünoğlu & Şahin is a law firm that serves domestic and foreign clients in areas directly related to commercial and economic activities — from Istanbul, İzmir, and Washington D.C.

Our approach does not limit legal support to dispute resolution alone. We operate on a preventive legal philosophy — foreseeing legal risks at the decision-making stage and ensuring legal certainty from the very beginning of commercial and personal relationships.

The firm operates across a broad field encompassing corporate and commercial law, tax law, enforcement and bankruptcy, employment law, and civil law. We identify legal risks clients may face at an early stage, with the goal of preventing future disputes before they arise.

Where disputes are unavoidable, we approach litigation and enforcement processes with technical expertise and strategic vision — aiming for the effective protection of client interests at every stage of proceedings.

01

Integrity & Professionalism

Acting in accordance with the Code of Advocacy and the Turkish Bar Associations' Professional Rules — placing professional responsibility, honesty, and trust at the center of all work.

02

Strategic & Practical Thinking

Combining doctrinal depth with commercial pragmatism to deliver solutions that are both legally sound and practically effective.

03

International Perspective

Multi-jurisdictional bar admissions, cross-border transaction experience, and offices spanning Türkiye and the United States.

04

Preventive Legal Approach

Legal advisory is not limited to resolving problems — it means accompanying clients from the very start to build legal security around all their activities.

05

Collaborative Teamwork

A multidisciplinary team combining lawyers, academics, and specialists — collaborating across jurisdictions to serve complex client needs.

Why İlhan & Üstünoğlu & Şahin

A Different Kind of Legal Partner

We don’t wait for disputes to arise. We build the legal infrastructure that prevents them — and when they do arise, we resolve them with precision and strategic clarity.

Preventive by Design

We accompany clients from the moment of decision — not after the damage is done. Legal risk assessment at the planning stage is not a cost; it is an investment in certainty.

Academic Rigour in Practice

Our partners hold academic positions at leading Turkish and international law schools. This shapes the depth and quality of every legal opinion we produce.

Three Jurisdictions, One Team

Istanbul, İzmir, and Washington D.C. — bar admissions spanning Turkey, New York, and the District of Columbia. International matters handled by the same team, not referred to strangers.

50 Years of Continuity

Founded in 1974, our firm spans three generations. Clients benefit from institutional memory, established relationships, and a reputation built over decades — not months.

Our Heritage

Five Decades of Legal Excellence

1974

Founded in Konya

Muzaffer İlhan graduates from Istanbul University Faculty of Law and establishes the İlhan Law Office, rapidly becoming a trusted legal institution serving leading companies across Central Anatolia in commercial, corporate, and banking law.

2006

International Expansion — Istanbul

Dr. Hüseyin Afşın İlhan joins the profession with an LLM from Miami University School of Law and begins building the firm's international arbitration practice. The firm extends its reach to Istanbul, serving multinationals and global investors.

2013

Academic Foundation Formalized

Dr. İlhan receives his Doctor of Law degree with honors from Yeditepe University — thesis on "Validity of Arbitration Agreements." The integration of academic rigor into practice becomes a defining characteristic of the firm.

2022

Washington D.C. Presence

The firm opens its Washington D.C. office, supporting ICSID investment arbitration and cross-border transactions between Türkiye and the Americas. Bar admissions now span Istanbul, İzmir, Konya, New York, and the District of Columbia.

Today

İlhan & Üstünoğlu & Şahin

A full-service international law firm with offices in Istanbul (Maslak & İdealtepe), İzmir, and Washington D.C. — combining over 50 years of heritage with a modern, globally-connected practice handling the most complex commercial and investment matters.

Representative Matters

Track Record

Our attorneys have handled some of the most complex and high-value legal matters across international arbitration, M&A, capital markets, and maritime law.

$254M+

UNCITRAL arbitration — Turkish company vs. African sovereign state. Landmark investment arbitration.

$500M

ICSID arbitration strategy and financing being structured for Washington D.C. filing.

$250M

Active IPO process on Istanbul Stock Exchange — full capital markets advisory.

$100M

Cross-border maritime arbitration management and P&I limitation fund.

$60M

London arbitration — Turkish construction company vs. UK counterpart. Full recovery.

$45M

M&A transaction — U.S. investor acquiring a Turkish company. Full deal management.

$20M

M&A — Spanish investor acquiring a Turkish company. Full transaction management.

$8M

Financial arbitration before the Vienna International Arbitration Centre (VIAC).

$2.5M

Successful claim against a bank and brokerage firm — full recovery achieved for client.