DESFA was established in April 2007 after the completion of the legal separation of the transmission and trading activities of the Public Gas Corporation (DEPA SA), in accordance with Law 3428/2005 for the liberalization of the natural gas market.
DESFA is responsible and the main operator of the National Natural Gas Transmission System (NNGS) in Greece with the aim to best serve its users with safety, reliability, efficiency and adequacy. In this context, DESFA offers major market players regulated, from RAE, services of the NNGS, as well as non-regulating services, through the important know-how it has developed. 
The recent strategic partnership (2018) with the Senfluga consortium, consisting of the companies Snam, Enagas and Fluxys, enabled the provision of excellent and high-quality services beyond the Greek borders. Contributing decisively to the security of supply and the diversification of supply sources of the wider region, DESFA also facilitates the development of competition in the Greek energy market, while systematically striving for the reduction of greenhouse gas emissions.
Possessing extensive experience as a gas infrastructure operator and being manned with highly skilled personnel, DESFA is a reliable partner in the framework of the ongoing international energy projects in Southeastern Europe.

DESFA’s Network:
•	Total Network Length: 1.454 km
•	6 Operation & Maintenance Centers
•	47 Metering & Regulating stations
•	2 Border Metering Stations
•	2 Dispatching Centers
•	1 LNG Terminal Station
•	1 Compression Station
•	Remote Control and Communication System

Energy

Infrastructure

DESFA SA – Hellenic Gas Transmission System Operator

Maria Rita Galli

Nikos Katsis

Ismail Zoumbre

Charalampos Silamianos, MSc

Ioannis Gyftakis

Sotirios Bravos

Marc Vercruysse

Theodoros Protogeros

Christina Tsamousopoulou

Theodoros Alexandridis

Nikolaos A. Tsochatzidis

Marianna Psaropoulou

Margarita Sirkou

Dr. Nick Kioupis

Dimos Kollias

Dimitrios Kontos

Damianos Andronikidis

Ieronymos Giakoumatos

Maria Kouli

Matina Papadopoulou

The Risk and Compliance Team at DESFA SA is responsible for identifying, assessing, and mitigating risks that could impact the company’s operations, ensuring compliance with legal and regulatory requirements. This multidisciplinary team oversees integrity management, data protection, legal affairs, information security, and enterprise risk management, thereby safeguarding DESFA’s assets and reputation while maintaining operational excellence and security.

Risk and Compliance Team

Engineering

Operations Team

Finance and Accounting Team

Risk and Compliance Team

About

Team members

Other teams at DESFA SA – Hellenic Gas Transmission System Operator

Engineering

Operations Team

Finance and Accounting Team