DESFA S.A. (Hellenic Gas Transmission System Operator S.A.) is responsible for the operation, management, utilization, maintenance, and development of the National Natural Gas System (NNGS) in Greece. The company ensures the safe, reliable, and economically efficient transmission of natural gas, playing a crucial role in Greece's energy sector. DESFA's activities include providing access to the NNGS, managing gas flows, and developing new infrastructure to meet evolving energy demands and enhance regional connectivity. It also operates the Revithoussa LNG Terminal, a key facility for diversifying gas supply sources for Greece and Southeastern Europe.
Serves as the central hub for strategic decision-making, operational oversight, financial management, and administrative functions for Greece's national natural gas transmission network.
Modern office facilities equipped with advanced systems for monitoring and managing the gas grid, potentially including sophisticated control rooms. Designed to support a collaborative and efficient work environment focused on critical infrastructure management.
Characterized by a professional, engineering-driven environment with a strong emphasis on safety, reliability, and operational excellence. The culture fosters expertise in energy infrastructure and a commitment to national energy security and sustainable development.
The headquarters is vital for Greece's energy strategy, coordinating the uninterrupted flow of natural gas essential for power generation, industries, and households. It also plays a key role in managing Greece's position in regional energy connectivity.
While DESFA's primary operations are focused on the Greek national natural gas system, its role has significant international implications. DESFA manages crucial interconnection points with neighboring countries' gas networks (e.g., Bulgaria, Turkey, and through TAP, Italy) and the Revithoussa LNG terminal receives shipments from global LNG suppliers. This makes DESFA a key player in the regional energy security and diversification of gas routes for Southeastern Europe, connecting Greece to broader European and global energy markets.
357-359 Mesogeion Avenue & Psaron Street
Halandri, Athens
Attica
Greece
Address: LNG Terminal Revithoussa, P.O. Box 28, 19100 Megara, Greece
Serves the entire Greek natural gas market and increasingly contributes to the energy supply security of the wider Southeastern Europe region, especially with recent capacity upgrades and its strategic location.
Address: Sidirokastro Border Metering Station & Compressor Station, Sidirokastro, 62300 Serres, Greece
Key interconnection point for gas transmission into Greece from the north, facilitating international gas trade and ensuring stable supply to Northern Greece and beyond.
Address: Nea Mesimvria Compressor Station, Nea Mesimvria, Thessaloniki, Greece
Supports the reliability and efficiency of gas transmission to industrial and residential consumers in the economically significant region of Thessaloniki and Macedonia.
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As of April 2025, DESFA' leadership includes:
DESFA has been backed by several prominent investors over the years, including:
DESFA S.A. has experienced adjustments in its Board of Directors over the past year, reflecting standard governance evolution. Key operational leadership roles were significantly reinforced in early 2023, establishing a stable executive team.
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DESFA S.A. likely utilizes common corporate email formats. While specific internal patterns can vary, a frequent structure for companies of its nature involves a combination of the employee's first initial and last name.
flastname@desfa.gr
Format
mgalli@desfa.gr (example for Maria Galli)
Example
75%
Success rate
desfa.gr • May 29, 2024
DESFA's CEO, Maria Rita Galli, highlighted the company's strategic investments in critical infrastructure projects aimed at bolstering Greece's energy security and positioning the country as a key energy hub in Southeastern Europe during her participation at the 9th Delphi Economic Forum....more
desfa.gr • April 3, 2024
DESFA has put its new Ten-Year Development Program (TYNDP) for the National Natural Gas System (NNGS) for the period 2024-2033 under public consultation. The plan includes investments of €1.28 billion for projects enhancing security of supply, network capacity, and decarbonization efforts....more
desfa.gr • February 29, 2024
DESFA announced the commencement of commercial operation for its new high-pressure gas pipeline. This pipeline connects the National Natural Gas Transmission System (NNGS) at the Amfitriti exit point (Komotini) to the Independent Natural Gas System (INGS) of Alexandroupolis, which includes the FSRU....more
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