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EYDAP's Overview

Total employees582
HeadquartersGalatsi, Athens
Founded1926

EYDAP S.A. (Athens Water Supply and Sewerage Company - Εταιρεία Ύδρευσης και Αποχέτευσης Πρωτεύουσας Α.Ε.) is the largest company in Greece dedicated to water services. It is responsible for providing water supply and sewerage services to millions of inhabitants in the greater Attica region, which includes the capital city, Athens. EYDAP's comprehensive operations involve the management of raw water from dams, reservoirs, and aqueducts (like Mornos, Evinos, Yliki, and Marathon), its treatment in modern Water Treatment Plants (such as those in Galatsi, Polydendri, Menidi/Aharnes, Aspropyrgos), the distribution of potable water through an extensive network of over 14,000 km, and the collection and treatment of wastewater at facilities including the major Psyttaleia Wastewater Treatment Plant. The company is committed to ensuring high water quality, protecting public health, managing water resources sustainably, and investing in modern infrastructure and digital transformation.

Where is EYDAP's Headquarters?

HQ Function

The headquarters accommodates EYDAP's central administration, including executive management, strategic planning, financial operations, engineering and technical services oversight, human resources, legal affairs, and customer relations management for its extensive water and wastewater services across Attica.

Notable Features:

A modern office complex designed to support a large utility's operations. It likely includes advanced facilities such as SCADA (Supervisory Control and Data Acquisition) control centers for real-time monitoring and management of the vast water supply and sewerage networks.

Work Culture:

The work culture at EYDAP combines a strong public service ethos with an increasing focus on corporate efficiency and innovation. It emphasizes technical expertise, operational reliability, adherence to strict quality and environmental regulations, and customer-centric service. It often fosters long-term careers, valuing experience and dedication to essential public utility services.

HQ Significance:

As the command center for the water supply and sanitation of Greece's most populous and economically vital region, EYDAP's headquarters plays a crucial role in public health, environmental protection, urban development, and the daily well-being of millions of residents and businesses in Athens.

Values Reflected in HQ: The headquarters' design and operations aim to reflect EYDAP's core values: reliability in service, responsibility towards public health and the environment, efficiency, customer focus, innovation, and sustainability in water resource management.

Location:

As a utility provider primarily focused on the Attica region of Greece, EYDAP does not maintain operational offices or a physical business presence globally in the traditional sense. Its international activities are centered around collaboration with international water organizations (like IWA, EUREAU), participation in EU-funded research and development projects, benchmarking and knowledge sharing with other leading water utilities worldwide, and sourcing advanced technologies and equipment from international suppliers. EYDAP's 'global presence' is thus defined by its engagement with international standards, best practices, and partnerships within the global water sector community, rather than through physical operational outposts in other countries.

Street Address:

Oropou 156

City:

Galatsi, Athens

State/Province:

Attica

Country:

Greece

EYDAP's Global Presence

Various Municipalities, Attica/Greece

Address: Multiple Peripheral Customer Service Centers, e.g., Peristeri Customer Service Center, Laodikeias 36-38, Peristeri

To offer accessible and decentralized customer service across the wide geographical area of Attica, ensuring customer needs are met efficiently at a local level.

Psyttaleia Island, Piraeus, Attica/Greece

Address: Psyttaleia Wastewater Treatment Plant

Crucial for environmental protection by treating the wastewater of the Athens metropolitan area before its discharge into the Saronic Gulf. It is a hub for advanced wastewater treatment technology and operations.

Aharnes, Attica/Greece

Address: Aharnes Water Treatment Plant Complex (Menidi)

Ensuring the supply of high-quality potable water to a significant portion of Athens and the broader Attica region. A key node in the water supply infrastructure.

Buying Intent Signals for EYDAP

Highperformr Signals uncover buying intent and give you clear insights to target the right accounts at the right time — helping your sales, marketing, and GTM teams close more deals, faster.

Notable news
Hiring actively
Corporate Finance
Corporate Finance
Corporate Finance
Corporate Finance
Corporate Finance
*Example signal, not calculated in real time

Executive Team of EYDAP

As of April 2025, EYDAP' leadership includes:

Charalampos (Harry) Sachinidis - Chief Executive Officer
Persa P. Chatziioannou - General Manager of Finance (CFO)
Athanasios N. Tsonis - General Manager of Water Supply
Georgios I. Karagiannis - General Manager of Sewerage
Spyridon N. Voudouris - General Manager of Human Resources & Support Functions
Georgios G. Stamatopoulos - General Manager of Transformation & Digital Technology
Anastasios D. Tossios - Executive Member of the BoD (often involved in strategic operational oversight)

Investors of EYDAP

EYDAP has been backed by several prominent investors over the years, including:

Hellenic Corporation of Assets and Participations (HCAP S.A.) - Greek State Superfund (50% + 1 share)
Hellenic Republic Asset Development Fund (HRADF/TAIPED) (~11.33%)
EFKA (National Social Security Entity) (significant institutional holding)
Other institutional and private investors via the Athens Stock Exchange (ATHEX: EYDAP)

Executive New Hires/Exits in the Last 12 Months

Hire0
Exits0

EYDAP's top leadership has demonstrated stability. The current Board of Directors, which includes key executive members, had their terms renewed or were re-appointed following the Annual General Meeting of Shareholders in June 2023. There have been no widely publicized major or unexpected new hires or departures within the core executive team (General Managers and CEO) in the past 12 months outside of these standard governance and board term cycles, indicating continuity in strategic direction and operational management.

Technology (Tech Stack) used by EYDAP

Discover the tools EYDAP uses. Highperformr reveals the technologies powering your target accounts — helping your sales, marketing, and GTM teams prioritize smarter and close faster.

EYDAP Email Formats and Examples

EYDAP's email format for individuals commonly uses the first initial of the first name combined with a significant part or the entirety of the last name, followed by @eydap.gr. Generic departmental emails also exist (e.g., ir@eydap.gr for Investor Relations).

[first_initial][lastname_or_lastname_prefix]@eydap.gr

Format

mhatz@eydap.gr

Example

70%

Success rate

News and media

eydap.grApril 16, 2024

EYDAP at the Delphi Economic Forum IX

EYDAP participated in the 9th Delphi Economic Forum, presenting its strategic plan focused on investments in resilient infrastructure, digital transformation, sustainable practices, and addressing climate change challenges to ensure water security for Attica. The CEO highlighted key projects and the company's commitment to innovation....more

eydap.grMarch 28, 2024

EYDAP Announces Financial Results for Fiscal Year 2023

EYDAP released its annual financial results for 2023, reporting an increase in turnover to €380.1 million (from €358.7 million in 2022) and profits after tax of €66.6 million (up from €32.1 million). The results were attributed to tariff adjustments, cost optimization, and continued investments in network modernization and major projects....more

eydap.grFebruary 7, 2024

EYDAP Enhances Digital Services with New MyEYDAP Portal Features

EYDAP announced significant upgrades to its 'myEYDAP' customer portal, introducing new functionalities for easier bill management, consumption monitoring, and online service requests. This initiative is part of EYDAP's broader digital transformation strategy to improve customer experience and operational efficiency....more

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