Firm Profile > Erdem & Erdem Law Office > Istanbul, Turkey

Erdem & Erdem Law Office
Ferko Signature, Büyükdere Caddesi
No. 175, Kat. 3
34394 Esentepe - Sisli, Istanbul

Dispute resolution Tier 1

Led by managing partner Piraye Erdem and Suleyman Sevinc Erdem & Erdem Law Office represents clients in commercial and administrative litigation, and arbitration. The firm handles M&A-related disputes, employment law issues, and domestic and international contractual disputes. Founding partner Ercüment Erdem is also a key contact.

Practice head(s):

Piraye Erdem; Süleyman Sevinç

Other key lawyers:

Ercüment Erdem

Key clients


UBER Turkey Yazılım ve Teknoloji Hizmetleri Ltd. Şti. (UBER TURKEY)

Yıldırım Holding

Türkiye Şişe ve Cam Fabrikaları A.Ş. (Şişecam) and subsidiaries

İş Bankası



SamrukKazyna JSC


LG Electronics

Enerjisa Elektrik Enerjisi Toptan Satis A.S

Yıldırım Enerji Holding

Banking, finance and capital markets Tier 2

Erdem & Erdem Law Office advises corporate borrowers, banks, and financial institutions on a range of transactions, including syndicated lending, restructuring, acquisition and corporate finance, and project finance. The team also advises private equity investors. In the capital markets space, the firm has experience of debt and equity instruments, IPOs and secondary offerings, and private placements. The team is led by experienced practitioner Ercüment ErdemOzgur Kocabasoglu is another name to note for corporate finance transactions.

Practice head(s):

Ercüment Erdem

Other key lawyers:

Ozgur Kocabasoglu


‘Erdem & Erdem is a very solid, reliable and good-value firm. They pay attention to detail and have full commitment to the client. They are resilient in negotiations and are creative in providing solid arguments expected of the matter at hand.’

‘I think the team members are extremely responsive and have a solution-focused approach. ’

Key clients


Garanti Bankası

İş Bankası

Teknik Aluminyum

Yılport Holding

Trakya Cam

Türkiye Şişe

Yılport Konteyner Terminali MIP


Garanti Bankası

İş Bankası

Teknik Aluminyum

Yılport Holding


Türkiye Şişe


Compliance Tier 2

Erdem & Erdem Law Office advises domestic companies on compliance with regulations in a number of fields, including competition and antitrust, white-collar crime and fraud, tax, and data protection. In particular, the team has expertise in structuring and implementing executive training programmes and drafting internal compliance policies. The practice is led by corporate governance and regulatory specialists Ercüment Erdem and Mert Karamustafaoglu.

Practice head(s):

Ercument Erdem; Mert Karamustafaoğlu

Key clients

Meram Elektrik Dağıtım

Meram Elektrik Satış

İbrahim Polat Holding

Çolakoğlu Metalurji

Feka Otomotiv Mamulleri

Tohum Türkiye Otizm

Ege Seramik

Ege Vitrifiye


Polat Maden

Polat İnşaat

Livewell Giyilebilir

Göçtur Turizm

Tricon Energy

İndeks Bilgisayar

Türkiye Görme Özürlüler Kitaplığı Derneği

Competition Tier 3

Erdem & Erdem Law Office acts for major Turkish businesses in a variety of industries, including industrials, automotives, and financial services. The team represents clients in merger control proceedings and investigations, with a particular focus throughout 2020 on the retail sector and pricing investigations launched in the aftermath of the Covid-19 pandemic. Ercüment Erdem heads up the team alongside Mert Karamustafaoglu, an expert in Turkish and EU competition issues.

Practice head(s):

Ercüment Erdem; Mert Karamustafaoğlu


‘They are innovative and they have good communication skills.’

‘Erdem & Erdem has decades of experience regarding the industries that are strategically important for us, namely port management, mining and energy. Their exceptional partners including Mr. Mert Karamustafaoglu, the practice lead for competition law, have a deep understanding of our sectoral challenges.’

‘Mr. Mert Karamustafaoglu is extremely knowledgeable and does a fantastic job of delivering tailor-made solutions for our competition law related issues as well as merger clearance filings for our projects. Thanks to his experience both as a former expert in the Competition Authority and a lawyer in private practice, he is capable of addressing a broad range of matters very effectively.’

Key clients

Türkiye Şişe ve Cam Fabrikaları

İş Bank (Türkiye İş Bankası)

Çelik Motor


Ekol Logistics

Carrefoursa Carrefour Sabancı Ticaret Merkezi

Gemlik Gübre Sanayii

Trakya Cam Sanayii

Paşabahçe Cam Sanayi


Yıldız Entegre Ağaç

IC İçtaş İnşaat Sanayi


Bankalararası Kart Merkezi

Anadolu Etap Penkon Gıda ve Tarım Ürünleri Sanayi

Anadolu Isuzu Otomotiv San

CMA CGM Deniz Acenteliği

TEB Arval Araç Filo Kiralama

Adel Kalemcilik Ticaret ve Sanayi

İndeks Bilgisayar Sistemleri Mühendislik Sanayi ve Ticaret

Yalçın Tekstil Boya ve Apre Sanayi ve Ticaret Anonim

Dorak Turizm ve Gayrimenkul Yatırımları

Le-Co Deri Turizm

Co DMC Turizm ve Ticaret

Atmosfer Balonculuk Ticaret Turizm

Gökyüzü Balonculuk Hizmetleri

Kapadokya Balonculuk Turizm Ticaret

Sultan Balonculuk Havacılık

Şeref Turizm

Akben Turizm Seyahat

Stüdyo Turizm

Deluks Turizm

DLX Seyahat Acentalığı

GNM Turizm Tic

Discovery Havacılık Turizm ve Ticaret

Samanyolu Havacılık Balonculuk Eğt. Tur. İnş. San. ve Tic.

Uluer Havacılık Turizm ve Ticaret

Pamukkale Birlik Online Turizm ve Ticaret

Elis Balonculuk Havacılık ve Eğitim Turizm Ticaret

Denizli Havacılık Turizm Ticaret

Energy Tier 3

Erdem & Erdem Law Office advises energy companies, including oil & gas, renewable energy, and nuclear power producers and suppliers, alongside private equity investors and trade associations, on a range of issues, including transactions, regulatory issues and state relations, and disputes. The firm has a particular strength in negotiating contracts for project developments. The team is led by senior partner Ercüment Erdem alongside Özgür Kocabaşoğlu.

Practice head(s):

Ercüment Erdem; Özgür Kocabaşoğlu

Key clients

Yıldırım Enerji Holding

Yıldırım Holding

Yılport Holding

Türkiye Şişe

Trakya Cam Sanayii

Aktor Arbiogaz JV

IC Holding

Akfen Holding

Sanko Enerji


Project finance/projects Tier 3

Erdem & Erdem Law Office advises lenders and sponsors on project financing transactions, with a particular strength in BOT models for power generation projects, airports and port operations. The team handles syndicated credit facilities, term loans and Islamic financing mandates for investment-grade and non-investment-grade borrowers and lenders. Clients include international banks and financial institutions, domestic sponsors and equity investors. Ercüment Erdem and Özgür Kocabaşoğlu jointly lead the team.

Practice head(s):

Ercüment Erdem; Özgür Kocabaşoğlu

Key clients

Yılport Holding

Yıldırım Holding

Türkiye Şişe ve Cam Fabrikaları

Soda Sanayii

Şişecam Elyaf Sanayii

Gemlik Gübre

Deutsche Bank

Türkiye İş Bankası

QNB Finansbank


Yapı ve Kredi Bankası

Commercial, corporate and M&A Tier 4

Erdem & Erdem Law Office has a strong focus on cross-border work, operating foreign desks for GCC-facing transactions and deals throughout Asia-Pacific, including China. The team regularly works with private equity investors on investments, joint ventures, and acquisitions, particularly in the energy, projects, and infrastructure sectors. Ercüment Erdem and Özgür Kocabaşoğlu lead the team.

Practice head(s):

Ercüment Erdem; Özgür Kocabaşoğlu


‘Solution-oriented team with good attitude’

‘Our deal was related to the port sector. Apart from their experience and broad knowledge on M&A practice, the team also had solid experience in our sector. This was the main reason of our preference. The team is capable of and eager to resolve and find solutions for complex structures, hardworking, easily accessible and provide legal assistance shortly in urgent matters.’

‘Along with a solid experience in law, we seek our legal counsellors to have a business and solution oriented approach. During the deal, if necessary, we may request them to advise us legal alternatives and consequences thereof rather than directly advising the application of the mere rule. Both of the lawyers we worked with had that quality and we appreciated that.’

Key clients

IC Holding

Limak Holding

Yıldırım Holding

Yılport Holding


Polat Holding

BMC Otomotiv

Norm Holding

Baran Arın







TT Endüstriyel

Dorak Holding

Norm Holding

Çelik Motor


GAP İnşaat

Türkiye Spastik Çocuklar Vakfı

Tohum Otizm Vakfı

Feka Automotive





Sapio Life Turkey

Feka Otomotiv

Imtiaz Holding

Husch Blackwell

Stantec Mühendislik ve Müşavirlik

Point S Development




JA Solar

Taska Prosthetics

The firm: Erdem&Erdem is an international law firm dedicated to providing practical business solutions to a diverse range of clients particularly in cross-border business transactions, M&As, corporate restructuring and governance, international contracts, corporate finance, project finance, energy/renewable energy, privatizations and PPPs, private equity investments, capital markets, competition and antitrust, litigation (execution and bankruptcy) and international arbitration.

Erdem&Erdem has a team of 50 fee-earners with specializations in line with the firm’s growing reputation and diversified practice areas.

Areas of practice
International transactions, M&As and private equity: The firm advises public and private companies, private equity firms, financial sponsors, investment banks, governmental entities in a variety of complex, cross-border and strategic transactions including structuring and organizing fund sponsors and investment funds, executing acquisitions, financing and exit transactions.

Competition and antitrust: The firm has a strong record of successful representation of the largest regulated and networked companies in Turkey, Europe, Asia, and the CIS and advisory in competition regulations.

Banking and finance: The firm advises corporate borrowers, private equity funds, financial advisers, commercial banks, investment banks in construction and acquisition finance and refinance, project finance, banking and capital market transactions, including issuances of high-yield debt security, secured and unsecured debt offerings and private placements.

Privatization: The firm represents foreign and local clients in privatization projects in Turkey, Western Europe and Southeast Asia. Its clients encompass refinery, port, airport, energy, healthcare, real estate, consumer goods, natural resources, and infrastructure and construction industries, also banks and financial institutions.

International contracts, agency and distributorship: The firm has decades of diverse experience in the field of international contracts. Team members are known for their in-depth know-how and extensive experience in drafting and negotiating all types of commercial contracts, such as agency, franchise, supply and distribution and commission arrangements, foreign representative and consultancy agreements.

Energy and renewables: The energy sector experience includes natural gas, coal and oil-fired power plants, co-generation facilities, agricultural and municipal solid waste projects, hydroelectric projects, and wind, solar and other renewable energy facilities.

Real estate and construction: The firm represents investors, developers, owners, lenders, prime contractors, REITs, PPPs, subcontractors, architects, port management authorities, airlines and energy utility companies involved in the construction and development of manufacturing, distribution and operational facilities in real estate finance, joint venture, leasing, acquisition and disposition of real estate assets.

Capital markets and corporate governance: the firm provides innovative solutions to a wide variety of capital raisings and compliance and governance issues the clients face in Turkey and abroad.

International arbitration: The firm’s arbitration practice is among its most prominent field of work. The team handles commercial and treaty dispute cases under the rules of every major arbitration system and in a wide variety of industries, including energy, mining, manufacturing, transportation, telecommunications, construction, finance, manufacturing and sports arising in Western Europe, Asia, Africa, Middle East and the CIS.

Litigation and bankruptcy: The hallmark of the litigation team is the experience of the lawyers who have been involved in litigation in almost every major practice, including M&As and post-closing disputes, insurance, transportation, breach of contract, partnership and joint venture disputes, real estate contracts, unfair competition, franchise and distributor disputes, government contracts, shareholders disputes.

Maritime law: The firm regularly represents clients in trials and appeals of admiralty and maritime matters. Their team handles and provides efficient resolution to maritime insurance and liability claims and other transportation matters in international or coastal trade. Erdem&Erdem has been involved in both prosecuting and defending transportation claims involving marine carriers.

Aviation: The firm regularly counsels airlines, airport authorities and other aviation industry clients in civil aviation regulation and enforcement, aircraft finance, engine and aircraft leasing, competition law and antitrust, mergers and alliances, aircraft acquisition and disposition, airport terminal construction and expansion projects, as well as aviation company reorganization, and restructuring issues.

Hospitality and leisure: The team is often engaged by foreign and local clients to provide support in all aspects of the development, acquisition, sale, financing, franchising, leasing and operation of hospitality and leisure assets that include hotels, resorts, theme parks, entertainment and sport complexes and convention centers that are abroad and in Turkey.

Intellectual property: The firm advises clients in telecommunications, Internet, advertising, and media who develop and license intellectual property, enter into transactions involving intellectual property, acquire portfolios of intellectual property, and make strategic decisions that are based on such considerations.

Tax law: Taking into account the fact that every commercial transaction comes with tax implications, we provide our clients with tax advisory and tax litigation services.

Department Name Email Telephone
M&A and private equity Prof Dr Halil Ercüment Erdem
M&A and private equity Özgür Kocabasoglu
M&A and private equity Tuna Çolgar
Competition and antitrust Prof Dr Halil Ercüment Erdem
Competition and antitrust Mert Karamustafaoglu
Banking, project finance and PPPs Prof Dr Halil Ercüment Erdem
Banking, project finance and PPPs Özgür Kocabasoglu
Privatisation Prof Dr Halil Ercüment Erdem
Privatisation Özgür Kocabasoglu
Privatisation Süleyman Sevinç
International contracts, agency and distributorships Prof Dr Halil Ercüment Erdem
International contracts, agency and distributorships Tuna Çolgar
Energy and renewables Tuna Çolgar
Energy and renewables Mert Karamustafaoğlu
Real estate and construction Tuna Çolgar
Real estate and construction Süleyman Sevinç
Capital markets and corporate governance Prof Dr Halil Ercüment Erdem
Capital markets and corporate governance Özgür Kocabasoglu
International arbitration Prof Dr Halil Ercüment Erdem
International arbitration Piraye Erdem
International arbitration Süleyman Sevinç
Litigation and bankruptcy Piraye Erdem
Litigation and bankruptcy Süleyman Sevinç
Litigation and bankruptcy Alper Uzun
Maritime Süleyman Sevinç
Aviation Özgür Kocabasoglu
Hospitality and leisure Tuna Çolgar
Intellectual property Özgür Kocabasoglu
Compliance Mert Karamustafaoğlu
Personal Data Protection Mert Karamustafaoğlu
Tax Law Canan Doksat
Labor Law and mediation Alper Uzun
Photo Name Position Profile
Mr Tuna Colgar  photo Mr Tuna Colgar Tuna Çolgar is a Partner in Corporate Affairs Department of Erdem &…
Prof Dr Halil Ercument Erdem  photo Prof Dr Halil Ercument Erdem Ercument Erdem is the Founder and Senior Partner of Erdem & Erdem…
Mrs Piraye Erdem  photo Mrs Piraye Erdem Piraye Erdem is the Founder and Managing Partner of Erdem & Erdem.…
Mr Mert Karamustafaoglu  photo Mr Mert Karamustafaoglu Mert Karamustafaoglu is Partner and Competition and Compliance Leader in Erdem&Erdem. He…
Mr Ozgur Kocabasoglu  photo Mr Ozgur Kocabasoglu Özgür Kocabaşoğlu is a Partner and the Head of Corporate of Erdem…
Mr Suleyman Sevinc  photo Mr Suleyman Sevinc Suleyman Sevinc is Partner and Head of Dispute Resolution Department of Erdem…
Number of lawyers : 31
at this office : 28
Contacts : Prof Dr H Ercüment Erdem
Contacts : Piraye Erdem
Other office : Izmir

Erdem & Erdem Represented Akinon on $20 Million Investment

Akinon, which is supporting the omni-channel operations and digital transformation processes of Turkey's and the world's leading retail brands with its cloud-based solutions, attracted $20 million investment in the investment tour led by Actera Group and Revo Capital. Erdem & Erdem is proud to support Akinon in the series B investment round and to represent the company in all legal processes of this transaction.

Canan Doksat has been promoted as Managing Associate at Erdem & Erdem

We are very proud of announcing that Canan Doksat has been promoted as Managing Associate, as of July 1, 2021.

Alper Uzun has been promoted as Partner of Erdem & Erdem

We are very proud of announcing that Alper Uzun has been promoted as Partner, as of July 1, 2021.

Anadolu Cam, Denizli Cam, Paşabahçe, Soda Sanayii and Trakya Cam were Merged Under Şişecam

Five companies of the Şişecam Group, four of which are publicly held, namely Anadolu Cam, Denizli Cam, Paşabahçe, Soda Sanayii and Trakya Cam have merged under Şişecam and the transaction was completed as of September 30, 2020.  Erdem & Erdem is proud to represent Şişecam in this merger transaction which is the biggest merger in Turkish capital markets.