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 Procurement and Contract Management team at DESFA SA is responsible for sourcing and acquiring goods and services essential for operating the National Natural Gas Transmission System. This includes managing supplier relationships, negotiating contracts, and ensuring compliance with procurement regulations. The team works collaboratively to optimize costs while maintaining service quality, thereby supporting DESFA's mission of reliability and efficiency in the Greek energy market.

Procurement and Contract Management

Engineering and Technical Support

Operations and Maintenance

Finance and Accounting

Procurement and Contract Management

About

Team members

Other teams at DESFA SA – Hellenic Gas Transmission System Operator

Engineering and Technical Support

Operations and Maintenance

Finance and Accounting