
Zepos & Yannopoulos provides comprehensive transactional, advisory, and contentious services, frequently handling M&A and joint venture transactions, regulatory matters, and project finance. Anastasia Makri leads the practice, bringing expertise in M&A, and is active in renewable energy, oil, and gas projects. Sofia Chatzigiannidou focuses on regulatory compliance, licensing, and disputes before the Greek administrative courts. Smaragda Spyrou advises on photovoltaic and natural gas projects, PPAs, and large-scale EU and international matters. Other key practitioners include Dimitra Rachouti, who specialises in regulatory issues, and Nikos Koukos, who supports across diverse mandates.
Legal 500 Editorial commentary
Testimonials
Collated independently by Legal 500 research team.
- ‘Smaragda Spyrou is experienced in complex transactions, and she stands out for her responsiveness, expectations management skills, and ability to meet deadlines.'
- ‘Smaragda Spyrou is a very valuable partner with in-depth legal and market knowledge.'
- ‘Anastasia Makri has a very business-oriented approach, with an eye for detail.'
- ‘The energy practice at Zepos & Yannopoulos demonstrates excellent expertise and a deep understanding of the sector. The team combines robust legal knowledge with a clear commercial perspective, offering pragmatic solutions that address both legal and business challenges.'
- 'Their advice is consistently precise, responsive, and tailored to the complexities of energy projects, including regulatory, transactional, and cross-border aspects.’
- ‘Overall, the Energy practice is highly reliable, commercially astute, and a trusted partner for clients seeking comprehensive support in energy-related matters.'
Key clients
- Foresight Group
- Helleniq Renewables
- DEPA Commercial Société Anonyme
- Greenvolt
- Iberdrola
- Infravia Capital Partners
- BayWa
- Aquila Capital Management
- Mirova
- European Energy
Work highlights
Advised Foresight and Mirova on the acquisition of a 267 MW PV cluster from Juwi, including full transactional, regulatory and EPC/O&M contract support.
Advised Ecoener on its entry into the Greek market via the acquisition of two wind projects, as part of a wider €300 million investment commitment.
Advised European Energy on all contractual arrangements for its first wind project in Greece, including grid and radar-related agreements.
Lawyers
Leading partners
The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.

Next Generation Partners
Junior partners with significant recognition from clients and peers in the market and key roles on multiple matters.
Practice head
Anastasia Makri
Other key lawyers
Sofia Chatzigiannidou; Smaragda Spyrou; Dimitra Rachouti; Nikos Koukos
Comparative Guides
Comparative Guide
Energy- Oil & Gas
Greece
Anastasia Makri, Sofia Chatzigiannidou, Dimitra Rachouti & Danai Mini
Comparative Guide
Acquisition Finance
Greece
Paris Tzoumas, Vivian Efthymiou & Daphne Cozonis
Comparative Guide
Project Finance
Greece
Paris Tzoumas & Magda Tsatsi
Comparative Guide
Tax Disputes
Greece
Alex Karopoulos, Dr. Dimitris Gialouris & Theodoros Papadakis

