Papatriantafyllou & Thanasenari cover photo

Papatriantafyllou & Thanasenari is a boutique law firm in Athens, Greece, focusing on litigation and complex business disputes. We represent corporate and private clients in commercial, corporate, civil, and white-collar crime cases. We also provide selected advisory services in areas such as investments, corporate matters, real estate, and technology. With a strong international focus, we deliver tailored legal solutions.

About Papatriantafyllou & Thanasenari

Founded in 2020

4 people in their team


Practice areas
Business
Bankruptcy & Debt
Corporate & Commercial
Lawsuits & Disputes
Criminal Defense
Real Estate
Intellectual Property
Media, Technology and Telecoms
Private Client

Languages spoken
Greek
English

Practice areas

Business

We represent corporate and private clients in complex business and corporate matters, including commercial contracts, corporate governance, new business formation, and cross-border transactions. Our firm also advises on investments, real estate, technology, and regulatory compliance, providing tailored solutions with a strong international orientation. With a focus on high-stakes litigation and strategic advisory, we deliver efficient and business-minded legal support.

Board of Investment (BOI)
International
Legal Document
New Business Formation
Health Care

Bankruptcy & Debt

We assist businesses and individuals in navigating financial distress, insolvency, and restructuring processes. Our services cover both advisory and litigation matters, from early financial challenges to full bankruptcy and restructuring proceedings. We represent debtors and creditors in and out of court, utilizing all available mechanisms under the Greek legal framework. With practical experience in out-of-court settlements and negotiations with banks and authorities, we strive to achieve swift, sustainable solutions that protect our clients’ rights and interests.

Bankruptcy
Credit Repair
Creditor
Debt & Collection

Corporate & Commercial

We handle complex corporate and commercial disputes, representing entrepreneurs, companies, and shareholders in high-stakes conflicts. Our practice covers shareholder and partnership disputes, breach of contracts, franchise and distribution conflicts, unfair competition, and damages claims. With deep expertise in litigation and negotiations, we provide strategic guidance at every stage—whether through settlement, ADR, or court proceedings. At the same time, we provide ongoing advisory services in company formation, corporate governance, compliance, and restructuring, helping businesses prevent risks and ensure sustainable growth.

Administrative
Antitrust
Business Registration
Contract
Corporate Governance
Due Diligence
Government Contract
Franchising
International Trade Law
Merger & Acquisition
Licensing

Lawsuits & Disputes

Our firm is highly experienced in litigation, representing clients in complex commercial, corporate, civil, and white-collar crime disputes. We provide nationwide representation before courts and regulatory authorities, with meticulous preparation and a strategic approach. From internal corporate conflicts and commercial contracts to M&A disputes, cross-border litigation, and criminal proceedings, we deliver effective advocacy and practical solutions aimed at protecting our clients’ rights, reputation, and business continuity.

Antitrust Litigation
Appeal
Commercial Litigation
General Litigation
Restructuring & Insolvency
ADR Mediation & Arbitration

Criminal Defense

Our firm has extensive experience in criminal defense, with particular expertise in white-collar crime. We represent companies, executives, and individuals in economic criminal cases such as fraud, embezzlement, breach of trust, tax evasion, money laundering, and antitrust violations. Our lawyers act at every stage—from internal investigations and pre-trial proceedings to full trials and appeals before the Supreme Court—providing strategic, discreet, and effective defense that safeguards our clients’ rights and reputation.

Criminal Litigation
White Collar Crime

Real Estate

Our firm provides comprehensive legal support in real estate, combining strong litigation expertise with practical advisory services. We represent clients in disputes concerning property acquisition, sales, leasing, and financing, safeguarding their interests in complex conflicts. At the same time, we advise on the full life cycle of real estate assets—from acquisition and construction to financing, leasing, and disposal—ensuring risk management and successful completion of transactions.

Intellectual Property

Our firm provides specialized expertise in intellectual property law, combining litigation strength with strategic advisory services. We represent clients in copyright, trademark, and industrial property matters, from registration and portfolio management to complex disputes and enforcement proceedings. With international academic and professional experience, our lawyers handle infringement claims, unfair competition, and IP-related litigation before all courts, including the Supreme Court. Our approach is business-oriented, ensuring that legal protection of IP assets also serves broader commercial objectives.

Copyright
Patent
Trademark

Media, Technology and Telecoms

Our firm provides cutting-edge legal services in technology, media, and telecommunications, with strong expertise in data protection, cybersecurity, and artificial intelligence. We advise businesses and public entities on compliance with EU and national legislation, corporate governance of data, and risk management for emerging technologies. With hands-on experience in litigation and regulatory proceedings, we represent clients in disputes involving IP, data privacy, fintech, and e-commerce. Our lawyers combine international academic credentials with practical courtroom experience, ensuring both preventive compliance and effective advocacy.

Cyber Law, Data Privacy and Data Protection
Fintech
E-commerce & Internet Law

Private Client

We provide specialized legal support to individuals in matters of family, inheritance, and real estate law. Our practice covers divorce proceedings, custody and visitation rights, child support, property disputes between spouses, and paternity recognition or contestation, always handled with sensitivity and discretion. We also represent clients in inheritance disputes among relatives and in will contests, seeking solutions that minimize confrontation while protecting their rights. In addition, we advise and represent individuals in real estate matters, including property transfers, ownership and co-ownership disputes, leases, and property encroachment issues. With thorough legal knowledge and practical experience, we deliver tailored solutions that safeguard the personal, family, and financial interests of our clients.

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