The treatment and distribution of water, the collection, treatment and recycling of wastewater, and the collection and recycling of waste are essential factors in making towns and cities attractive. SUEZ offers its high level of expertise and innovative technologies to local authorities, proposing a wide range of customizable partnerships to match their requirements and local regulations.
Our types of partnerships

A full range of partnerships to meet all requirements

Regardless of the challenge facing your town or city - creation of new water resources, production of renewable energy from waste, etc. - we have a large range of contractual models to suit all needs.

We can provide occasional consulting and engineering services, deploy digital solutions to optimise the performance of your water and waste departments, or form long-term partnerships including investments.

Contractual innovation, combined with technological, societal and digital innovation, is our trademark.

Our references

Partnerships to suit all needs

Towns and territories of all sizes throughout the world have materialised their vision of the future thanks to our types of partnership and expertise.

Consulting and engineering

We are entrusted with consulting and engineering missions to design and create the towns and cities of the future, to build sustainable infrastructures and to reconcile the economic and environmental performance of their facilities.

We provide a large panel of experts in hydraulics, hydrogeology, environment, oceanography, biodiversity, waste, civil engineering, urban planning, transport, energy, telecommunications, governance, economy, etc.
Mandalay, the second largest city in Myanmar, selected us to help achieve its ambition to become a green city. We mobilised a team of experts in different areas (transport, waste, water, energy) and focused on upstream analysis to help the local authorities to design their plan to improve urban services, water networks and transport.

Read Mandalay's success story on the global website (
In Cambodia, an original methodology for water demand forecasting has been used to design a master plan to supply drinking water throughout Phnom Penh. We designed a drinking water production plant with a fully automated control system to improve treatment quality and optimise energy consumption.
In Russia, the city of Moscow is implementing a vast urban transformation project. It involves the development of a multi-modal transport network for the Greater Moscow area by 2021, including the subway with more than 60 stations and 140 km of new lines. We are contributing to the design of the master plan with the intelligent management of the 50 million m3 of spoil that will be generated, including spoil traceability and optimisation of recovery modes by deploying digital solutions.

Read the press release on the global website (
In Nigeria, we are helping the Niger Delta Support Programme, supported by the Nigerian government and the European Union, in the field of water and sanitation. This technical assistance contract supports the provision of water and sanitation services to the communities and villages of the Niger Delta by developing small hydraulic facilities, training user associations in the local management of water and improving water governance by improving the institutional, legislative and regulatory frameworks.

Read the press release on the global website (

Deployment of digital solutions

Our digital solutions, Advanced Solutions, are shaping the cities of tomorrow today: a more resilient city thanks to optimised management of its various flows. These solutions notably included connected objects to collect data (smart meters, sensors, probes) to feed the digital models and applications in real time in order to progress towards reasoned use of resources and resilience to extreme climatic events.
To help Chongqing, China, to achieve its goal of becoming a “sponge city”, we deployed AQUADVANCED® Urban Drainage, a solution to monitor, anticipate and optimise the sanitation system based on real time processing of weather data and network measurements. The software helps the city to manage its rainwater and improve its flood resilience.

Read the "sponge city" success story on the Greater China's website (
We worked closely with PUB, Singapore’s national water agency, to deploy the AQUADVANCED® Urban Drainage solution. The software is installed in PUB facilities, such as the Marina dam, a key element of the city-state’s water independence. It ensures real time monitoring and offers decision support to optimise operations concerning the dam. It monitors town water quality and anticipates flow rates and levels in the reservoirs and canals. It uses weather forecasts and data collected from the sensors installed near the canals and reservoirs; all data is compiled into a single indicator table.

Read the press release on the global website (
In France, we have installed 22,000 ON’connect™ smart water meters in Mulhouse to gather more accurate, real time information on the city’s entire water network. Our technology facilitates everyday life for local inhabitants, who are rapidly informed of any suspected leaks at their homes. It enables automatic collection of data on water consumption, monitoring of volume distribution and improved invoicing processes, since subscribers are billed for their actual rather than estimated consumption.

Read the news on the global website (

Design, construction and operation of treatment plants

For decades, towns and cities have been entrusting us with the construction of their drinking water production, desalination, wastewater treatment and waste recycling and recovery plants. They particularly appreciate our technical expertise, our methods and our Degremont® treatment processes.

As well as designing and constructing the plants, we can operate and maintain them. This integrated service model (Design, Build, Operate) means local authorities have a single contact for design through to operation. 
In New Delhi, India, we have built the country’s largest drinking water production plant (supplying almost 4 million inhabitants) and will be operating it until 2027. This contract is a perfect illustration of our “Design, Build and Operate” model, in which our response to the master plan defined by the customer is combined with a desire to support local development.

Read the press release on the global website (
Perth, Australia’s 4th largest city, has signed a public-private partnership agreement with SUEZ to counter its water shortage. The contract is based on the sharing of risks and opportunities between the operator and the customer. We have designed and commissioned the 1st large-scale desalination plant in the southern hemisphere; at the time, it was also Australia’s largest sea water desalination plant using membrane filtration. 45 billion litres of fresh water are distributed to 2 million people every year.

Read the Perth Seawater Desalination Plant's success story
In Doha, Quatar, we have designed and implemented scalable facilities and innovative treatments to achieve up to 100% recycling of wastewater. The challenge was to meet water requirements and to support the international development of a country under water stress.

Read Doha's success story on the global website (
In West Basin, near Los Angeles, California, we have been operating the USA’s largest wastewater recycling plant for more than 20 years under a public-private partnership agreement. Our collaboration with the West Basin Municipal Water District will enable the facility’s recycled water production to be increased gradually, to reach 265,000 m3 per day, as downstream demand continues to grow.

Read the press release on the global website (

Complex projects including financing

Towns and cities also seek our expertise in financing all or part of the construction works for new plants or optimisation of existing facilities. We can organise 100% financing or a partial investment, on a case-by-case basis, possibly involving other stakeholders: commercial lenders, international finance institutions, money lenders, etc.
In Poland, the city of Poznan entrusted us with the construction of a plant to produce electricity from waste. The city opted for a “build, operate and transfer” contract to limit the project’s impact on its budget. We structured the overall financial system for the thermal power station with the European Marguerite fund.

Read Poznan's success story on the global website (
In Wilton, UK, we designed an offer with various partners based on a financial system in which the project’s priority lenders and investors financed the construction of a waste recovery plant, and we operate and maintain the plant for 25 years. We have been managing the plant, which is self-sufficient in terms of energy, since 2016. It provides 600,000 households with electricity from green energy produced from household waste and approximately 50% of the vapour generated is used by the companies in the town’s industrial zone.

Read Wilton's success story on the UK website (

Full management of public utilities: water and waste

For almost 150 years, towns and cities have been trusting us with the long-term management of all or part of their public utilities, including management of customer relations with their citizens. Our expertise covers the entire value chain of utility management in the fields of drinking water, sanitation, and waste collection and recovery: operation and maintenance of facilities, heritage works, continuous improvement of services, invoicing and customer relations, investment financing, etc.
Santiago de Chile has become a world reference in terms of sanitation. Its La Farfana water treatment plant, the world’s first biofactory, won the “Momentum for Change” prize, awarded by the United Nations for the most innovative projects in the field of climate solutions. It aims for 0 waste, 0 environmental impact, 0 fossil fuel consumption. The biofactory concept is being applied to the other water treatment plants of Greater Santiago, Mapocho and El Trebal. These results are the fruit of our long term partnership with the city.

Read Santiago de Chile's success story on the global website (
In New-Jersey (USA), the city of Bayonne has signed an original partnership contract with SUEZ for the operation of its water and sanitation systems over a 40-year period. This model is based on the concession of water and sanitation services to a company whose capital is held by the KKR’s infrastructure fund and by our group. The joint enterprise makes investments to improve the city’s water treatment system. This concession model is also innovative in that it separates asset management from operational activities.
In India, we have developed a new contractual model for water services based on the supply of services to whole cities, such as Coimbatore, Davanagere, Udupi and Puttur. For example, in Davanagere, the contract concerns the improvement of service quality as well as operational performance through transfer of expertise. It sets objectives in terms of improving network efficiency, water quality and customer service.

Read the press release on the global website (

In France, Greater Dijon is an ecological reference in Europe for its transport, energy and water policies. We manage the agglomeration’s drinking water and wastewater, as well as waste collection and sorting. Dijon Métropole, has signed a contract with our group and a number of partner companies* to create and manage a connected coordination station for public facilities in the city’s 24 communities. A unique smart city initiative based on Open Data, representing 65% energy savings by the end of the contract.

*Bouygues Energies & Services (Bouygues Construction subsidiary), Citelum (EDF subsidiary) and Capgemini

Read the news about Dijon
We have partnered the city of Dole, France, to create the first two SemOp (single operation public-private) companies in the field of water and sanitation. This is an innovative, new generation model, a milestone in the public/private sphere, with unique governance involving the elected representatives in every decision. The city directs the two 2 SemOp companies and our group contributes its expertise.

Read the press release on the global website (
In Algeirs, Algeria, 27 of the Group’s international experts have been working daily, supported by technical assistance teams, to assist and train the local teams of SEAAL, Alger’s water and sanitation company. This contract, consisting in a transfer of expertise, has enabled SEAAL to develop full expertise as a public utility operator in the field of water and sanitation, supplying drinking water to the Algerian capital 24/7, and creating a true customer relations culture.

Read Algier's success story
In Meknès, Morocco, we have been entrusted with a 20-year concession contract for the management of 200,000 tonnes of household and similar waste collected annually. We have invested to renovate the household waste storage site in Meknès and create an innovative elimination and recovery centre that meets the sustainable development targets set by the Moroccan authorities. The new site favours greenhouse gas reduction, preventing the emission of an annual 100,000 tonnes CO2 equivalent.