€111 Million East Naples Wastewater Project Positions Webuild and Acciona to Enhance Coastal Water Quality and Regional Development

(IN BRIEF) Webuild Group, through its subsidiary Fisia Italimpianti and in partnership with Acciona, has been awarded a €111 million contract to upgrade a wastewater treatment plant in East Naples, aiming to significantly improve water quality in the Gulf of Naples. The project will introduce advanced biological treatment technologies to serve approximately 860,000 residents across 14 municipalities, while also supporting the environmental restoration of the coastline and enabling its return to recreational use. Beyond infrastructure improvements, the initiative is expected to boost tourism, strengthen the local economy, and create employment opportunities. It further reinforces Webuild’s strong presence in Southern Italy and highlights its integrated approach to delivering complex water infrastructure projects, backed by global expertise and a long-standing track record in the sector.

(PRESS RELEASE) MILAN, 26-Mar-2026 — /EuropaWire/ — Webuild Group has secured a major infrastructure contract aimed at enhancing water quality in the Gulf of Naples, reinforcing its ongoing commitment to urban development in Southern Italy. The €111 million project involves the modernization of a wastewater treatment facility in East Naples and has been awarded to Fisia Italimpianti, a subsidiary of Webuild, in partnership with Spain-based Acciona. The initiative is expected to significantly improve wastewater management and strengthen the reliability of the regional water system.

The contract was issued by Invitalia on behalf of the extraordinary commissioner responsible for the project, marking a key milestone in efforts to upgrade Naples’ environmental infrastructure. Through this latest award, Webuild expands its footprint in Southern Italy, bringing the total number of projects it is currently managing in the region to 21, with a combined value exceeding €16 billion. These activities support more than 10,000 jobs and involve thousands of suppliers across the supply chain.

The East Naples treatment plant, originally constructed in the San Giovanni a Teduccio district during the late 1990s, will undergo a comprehensive upgrade using advanced biological treatment technologies. Once completed, the facility will serve approximately 860,000 residents across 14 municipalities, covering both urban and metropolitan areas. The improvements are also expected to contribute to the environmental restoration of the eastern Naples coastline, a key area targeted for broader urban regeneration.

By improving water quality in the Gulf of Naples, the project aims to make sections of the coastline suitable for bathing once again, supporting tourism, boosting local economic activity, and generating employment opportunities. The initiative is therefore positioned not only as an infrastructure upgrade but also as a catalyst for social and economic revitalization.

Matteo Buzzetti, General Manager of Fisia Italimpianti, emphasized the importance of the project, highlighting the company’s extensive experience in water treatment and its ability to deliver high-performance, environmentally sustainable solutions. He noted that the upgraded plant will play a vital role in improving water quality while supporting the redevelopment of an area with significant environmental and economic potential.

The project further strengthens Webuild’s longstanding presence in Naples, where it continues to play a central role in the development of the city’s transport and infrastructure systems. Recent achievements include contracts related to Naples Metro Line 10, as well as the construction and ongoing work on multiple metro stations. The Group has also contributed to major regional projects such as the Naples–Afragola high-speed railway station and continues to be involved in key sections of the Naples–Bari and Salerno–Reggio Calabria high-speed rail lines. These initiatives form part of the broader Trans-European Transport Network Scandinavian–Mediterranean Corridor, which aims to enhance connectivity across Italy and Europe.

The East Naples project also reflects Webuild’s integrated approach to infrastructure delivery, combining global expertise with the specialized capabilities of its subsidiaries. Fisia Italimpianti, with nearly a century of experience in water treatment and desalination, has established itself as a global leader in designing and constructing complex water infrastructure. Its treatment facilities serve over nine million people worldwide, while its desalination plants provide drinking water to more than 20 million individuals, particularly in regions such as the Middle East.

This multidisciplinary approach enables Webuild to manage large-scale, technically demanding projects from initial design through to completion. A recent example includes its involvement in the Riachuelo System in Buenos Aires, one of the largest river restoration initiatives globally.

Recognized by Engineering News-Record as the world’s leading contractor in the water sector by revenue, Webuild continues to build on a legacy that includes hundreds of dams, hydropower facilities, and water infrastructure projects. The East Naples initiative aligns with this track record, allowing the Group to apply international expertise domestically while contributing to Italy’s sustainability goals, particularly in water resource management and urban environmental quality.

Webuild is a global leader in the construction of large, complex infrastructure, with a focus on sustainable mobility, hydropower, water treatment and supply, and green buildings. It has long been recognised as the world’s top contractor in the water infrastructure sector. Active in approximately 50 countries, the Group employs some 95,000 people directly and indirectly of over 125 nationalities. With 120 years of history and over 3,700 completed projects, Webuild boasts a track record that includes 13,686 kilometres of railways, 895 kilometres of metros, 82,708 kilometres of roads and highways, 1,023 kilometres of bridges and viaducts, 3,466 kilometres of tunnels, and 320 dams and hydropower plants. Among its most iconic delivered projects are the Grand Ethiopian Renaissance Dam, the expansion of the Panama Canal, the Long Beach International Gateway in the United States, the Second Bosphorus Bridge in Turkey, the Riachuelo environmental restoration system in Argentina, and new metro lines in cities such as Copenhagen, Paris, Rome, Milan, Naples, Doha, Thessaloniki, and Riyadh. Among those under construction are strategic public works in Italy, such as the New Genoa Breakwater, the Brenner Base Tunnel, the Pedemontana Lombarda Highway, Rome Metro’s Line C, sections of high-speed and/or high-capacity railways between Genoa and Milan, Verona and Padua, Naples and Bari, and Palermo, Catania and Messina. Abroad, there is the Snowy 2.0 hydropower scheme in Australia and key sections of the Grand Paris Express in France. As of December 31, 2025, the Group reported total revenues of €13.6 billion and a total order backlog of €58.4 billion, with over 95% of the construction backlog aligned with the United Nations Sustainable Development Goals. Webuild is headquartered in Italy and subject to the direction and coordination of Salini Costruttori S.p.A. Listed on the Milan Stock Exchange (WBD; WBD.MI; WBD:IM), its stock is included in the MIB ESG index of Italy’s leading blue-chip companies for ESG practices.

€111 Million East Naples Wastewater Project Positions Webuild and Acciona to Enhance Coastal Water Quality and Regional Development

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