
Recognised for its 'ability to combine expertise, experience, and innovation', Andersen Legal - Pistiolis - Triantafyllos & Associates Law Firm advises Greek and multinational clients on cross-border M&A, restructurings, and transactions across the energy, banking and insurance sectors. The team is led by Theodore Pistiolis, Dimitra Gkanatsiou and Katerina Simopoulou. Pistiolis advises on the full spectrum of corporate matters. Gkanatsiou focuses on governance, financing, and acquisitions, while Simopoulou leads on banking and capital markets mandates. Themistoklis Giannakopoulos advises major Greek corporates, and Elena Chatzaki handles corporate and contractual disputes.
Legal 500 Editorial commentary
Testimonials
Collated independently by Legal 500 research team.
- ‘The corporate practice at Andersen Legal has consistently proven to be dependable, strategic, and forward-looking. They understand how businesses operate and adjust their advice to match the client’s specific goals. Τheir strength lies in combining technical knowledge with a strong sense of how deals and transactions work in practice. The team is approachable, quick to respond, and able to simplify even the most complicated issues.'
- ‘Theodore Pistiolis is an outstanding business advisor, highly competent and a formidable negotiator, always focused on achieving the best outcomes. In addition, Dimitra Gkanatsiou deserves special mention as a highly skilled and dedicated lawyer.’
- ‘Skillful professionals, efficient operation, highly personalised and friendly collaboration, diverse services provided, supported by people with relevant expertise.'
- ‘All members of the team are dedicated, well trained and very helpful.'
- ‘The team is always there to help with our needs with the best effort provided without any question. They are dedicated and they work closely with their client and solve their needs.'
- ‘What we value most about Andersen Legal is the combination of expertise and business-oriented thinking they bring to the table. They have earned a strong reputation in the Greek market, and in our experience, they know how to handle even the most complex issues with confidence and efficiency. Their client base is very broad — from individuals to large multinational companies — and this is reflected in their ability to adapt quickly to different needs and expectations. For us, their approach is practical, straightforward, and focused on getting things done.’
Key clients
- ALLIANZ TRADE CHEP HELLAS AKTOR GROUP OF COMPANIES (former INTRAKAT CONSTRUCTIONS) NETCOMPANY-INTRASOFT GEFSINOUS AEBE PINDO WIND IKE SEGAFREDDO HERON GROUP EUROBANK ASSET MANAGEMENT PRAKTIKER e-SHARE ESTARTA NVISO P-NET
Work highlights
Advised Gefsinus on the acquisition of a majority stake in a food and beverage company.
Advised Eurobank Asset Management on the regulatory and contractual structuring of its institutional and occupational insurance fund offerings.
Advised BFF Bank S.p.A. – Hellas Branch on the regulatory, compliance, and digital onboarding aspects of launching its new time deposit product in Greece.
Lawyers
Next Generation Partners
Junior partners with significant recognition from clients and peers in the market and key roles on multiple matters.

Practice head
Theodore Pistiolis; Dimitra Gkanatsiou; Katerina Simopoulou
Other key lawyers
Themistoklis Giannakopoulos; Elena Chatzaki; Evgenia Apostolopoulou
Comparative Guides
Comparative Guide
Data Protection & Cybersecurity
Greece
Dr. Themistoklis Giannakopoulos, Nicholas Zelios & Olga Fakiola
Comparative Guide
Employment and Labour Law
Greece
Anastasios Triantafyllos, Paraskevas Zourntos, Giouli Menti & Ellianna Maratou
Comparative Guide
Corporate Immigration
Greece
Anastasios Triantafyllos, Paraskevas Zourntos & Ioanna Legaki
