The water treatment industry in France focuses on the purification, management, and recycling of water resources. Companies in this sector offer solutions for drinking water supply, wastewater treatment, and technologies aimed at efficiency and eco-friendliness. With a growing emphasis on sustainability and the challenges of climate change, this sector is increasingly integrating advanced technologies, including smart systems and innovative filtration processes. As public awareness of water scarcity rises, these companies are evolving to meet stricter regulations and environmental standards while addressing local and international water needs.

This list highlights 22 influential water treatment companies in France, showcasing a range of sizes from small firms to large enterprises. Founded between 1922 and 2018, these businesses are mainly headquartered in regions such as Île-de-France and Nouvelle-Aquitaine. Their specializations vary from wastewater management to advanced purification techniques, reflecting the industry's adaptability and innovation in addressing global water challenges. The companies also serve municipal and industrial clients, emphasizing sustainability and quality in their service offerings.

Continue reading to explore France’s top companies in water treatment.

Top 22 Water Treatment Companies in France

1. Saur

• Website: saur.com
• Ownership type: Private Equity
• Headquarters: Issy-Les-Moulineaux, Île-De-France, France
• Employee distribution: France 97%, Other 3%
• Latest funding: Other (Debt), $598.0M, October 2024
• Founded year: 1933
• Headcount: 10001+
• LinkedIn: saur

Saur is a water management company based in Issy-Les-Moulineaux, Île-De-France, France, with a history dating back to 1933. The company specializes in providing essential services such as drinking water supply, wastewater treatment, and engineering solutions. Saur serves a wide range of clients, including municipalities and industrial sectors, ensuring effective water resource management and sustainability. With a workforce of over 6,000 employees, the company operates primarily in France, but its influence extends to various countries across Europe and the Middle East. Saur is committed to innovation, as evidenced by its focus on technological advancements in water treatment and management. The company has recently secured significant funding, which underscores its ongoing efforts to enhance its services and expand its reach in the water sector.

2. Aqualter

• Website: aqualter.com
• Ownership type: Private
• Headquarters: Chartres, Centre-Val De Loire, France
• Employee distribution: France 100%
• Founded year: 1970
• Headcount: 201-500
• LinkedIn: aqualter

Aqualter, based in Chartres, France, is a private water management company that has been operational since 1970. It specializes in the production and distribution of drinking water, as well as the treatment of wastewater. Serving local authorities and municipalities, Aqualter provides innovative and sustainable solutions aimed at ensuring water quality and availability. The company has developed a strong reputation for its commitment to transparency and collaboration, working closely with communities to address the pressing challenges of water scarcity and environmental impact. Aqualter operates a range of facilities, including water treatment plants and wastewater treatment stations, and has a notable focus on advanced technologies for managing water resources. With a workforce of approximately 111 employees, Aqualter has positioned itself as a significant challenger to larger water service providers in France, advocating for a more ethical and responsible approach to water management.

3. Forafrance

• Website: forafrance.fr
• Ownership type: Private
• Headquarters: Saint-Quay-Perros, Brittany, France
• Employee distribution: France 96%, Romania 4%
• Founded year: 2005
• Headcount: 11-50
• LinkedIn: forafrance

Forafrance, founded in 2005 and based in Saint-Quay-Perros, Brittany, France, is a private company specializing in water treatment solutions. With a workforce of approximately 48 employees, Forafrance focuses on the production of drinking water, process water, and wastewater treatment. The company serves a variety of clients, including industries and local authorities, providing customized solutions that ensure compliance with environmental regulations. Their services include maintenance and additional technical support, showcasing their commitment to high-quality service delivery. Forafrance operates with a strong emphasis on sustainable practices, utilizing advanced techniques such as chemical, biological, and membrane processes to optimize water treatment. Their expertise extends internationally, with projects in regions like Africa and the Middle East, reflecting their capability to handle diverse water treatment challenges. The company has not reported any funding, indicating a self-sustained operational model.

4. Aquaprox

• Website: aquaprox.com
• Ownership type: Private
• Headquarters: Levallois-Perret, Île-De-France, France
• Founded year: 1989
• Headcount: 201-500
• LinkedIn: aquaprox-sas

Aquaprox, established in 1989 and based in Levallois-Perret, France, is a private company specializing in water treatment solutions for industrial and tertiary applications. The firm provides a comprehensive suite of services that includes audit and consulting, chemical production, engineering, and operational support. With a strong emphasis on optimizing water treatment processes, Aquaprox serves a variety of industrial clients across Europe and has expanded its presence into Africa. The company is committed to environmental sustainability, ensuring that its solutions not only meet client needs but also minimize ecological impact. Aquaprox operates through a network of independent entities, allowing for tailored solutions that address specific water management challenges. Their focus on research and development further enhances their ability to innovate and adapt to the evolving demands of the water treatment sector.

5. Société du canal de provence

• Website: canaldeprovence.com
• Ownership type: Private
• Headquarters: Aix-En-Provence, Provence-Alpes-Côte D'Azur, France
• Employee distribution: France 97%, Other 3%
• Founded year: 1957
• Headcount: 501-1000
• LinkedIn: canal-de-provence

Société du Canal de Provence, founded in 1957 and based in Aix-En-Provence, France, is a private water management and engineering firm. With a workforce of approximately 506 employees, the company is dedicated to providing sustainable water supply, irrigation, and treatment solutions. It serves a variety of clients, including municipalities, agricultural businesses, and industrial sectors, primarily in the Provence region. The company is recognized for its innovative approaches to tackling water scarcity and enhancing resource management. Their engineering services cover a wide range of activities, including water treatment, irrigation, and renewable energy projects. SCP also engages in research and development, collaborating with local start-ups to foster innovation in water-related projects. Their commitment to improving water management practices positions them as a key player in the water treatment industry.

6. ODYSSEE Environnement | Water Treatment

• Website: odyssee-environnement.fr
• Ownership type: Private
• Headquarters: Requeil, Pays De La Loire, France
• Employee distribution: France 85%, Chile 5%, Belgium 5%, Other 5%
• Founded year: 2006
• Headcount: 51-200
• LinkedIn: odyssee-hydroethics

ODYSSEE Environnement, based in Requeil, Pays De La Loire, France, is a private company specializing in water treatment solutions. Established in 2006 by a group of chemists and experts, the firm has grown to employ around 101 individuals, with a significant portion of its operations focused in France. The company provides tailored solutions for industrial and municipal water management, emphasizing the reduction of water consumption and the enhancement of energy efficiency. Their approach is rooted in hydroethics, which guides their mission to balance industrial performance with environmental sustainability. ODYSSEE Environnement has treated over 8,500 sites across France and operates in various international markets, including Chile, Belgium, and Mexico. Their innovative products, such as ODYLIFE, a 100% biosourced anti-scale solution, highlight their commitment to sustainable practices. The company’s performance-based model ensures that their services align with clients' environmental goals, making them a relevant player in the water treatment industry.

7. DELO by domeau - Unlimited pure water

• Website: delo.mu
• Ownership type: Private
• Headquarters: Forbach, Grand Est, France
• Employee distribution: Mauritius 84%, France 16%
• Founded year: 2005
• Headcount: 11-50
• LinkedIn: delo-by-domeau-mauritius-water-filtration

DELO by domeau - Unlimited pure water, based in Forbach, Grand Est, France, is a private water treatment company that has been operational since 2005. The firm specializes in wastewater treatment, water purification, and desalination, catering to a variety of clients, including industries, municipalities, and residential areas. DELO is particularly noted for its innovative technologies and engineering services, which are crucial for effective water management and quality assurance. With a significant presence in the Indian Ocean region, the company has developed solutions tailored to local needs, emphasizing ecological sustainability and efficiency. Their commitment to providing essential water management services positions them as a key player in the industry, particularly in regions facing water scarcity and quality challenges.

8. Chemdoc Water Technologies

• Website: chemdocwater.com
• Ownership type: Private
• Headquarters: France
• Employee distribution: France 100%
• Founded year: 1998
• Headcount: 11-50
• LinkedIn: chemdoc-water

Chemdoc Water Technologies, based in France, is a private company established in 1998. With a workforce of 36 employees, it specializes in advanced water treatment solutions, focusing on purification and recycling technologies. The company serves a range of clients, including industrial and municipal sectors, providing essential services such as ultrafiltration and reverse osmosis. Chemdoc is dedicated to ensuring water quality and compliance with environmental regulations through its innovative products and services. Their expertise extends to the design and manufacturing of high-tech filtration systems, with a strong emphasis on reliability and efficiency. Chemdoc's commitment to zero subcontracting allows them to maintain control over the entire process, from design to implementation, ensuring high standards and customer satisfaction. Their extensive experience and tailored solutions position them as a significant player in the water treatment industry.

9. Sources

• Website: sources.fr
• Ownership type: Venture Capital
• Headquarters: Nanterre, Île-De-France, France
• Employee distribution: France 98%, Morocco 2%
• Latest funding: January 2019
• Founded year: 2000
• Headcount: 51-200
• LinkedIn: groupesources

Sources, founded in 2000 and based in Nanterre, Île-De-France, is a water treatment company that specializes in the design, construction, and operation of water treatment facilities. Over the past two decades, Sources has constructed more than 500 plants, showcasing their extensive experience in the field. The company offers innovative solutions, including co-methanization, which enhances the efficiency of wastewater management. Their clientele primarily consists of municipalities and industries that require effective wastewater management and drinking water production. Sources operates primarily in France, with a small presence in Morocco, and is recognized as the only independent French company covering the entire market of water treatment. They manage around 60 projects annually and have integrated advanced technologies into their operations, such as the Nereda® process for treating wastewater. The company is also financially stable, with no reported debt, and has a strong focus on research and development to continuously improve their offerings.

10. Elmatec

• Website: elmatec.fr
• Ownership type: Private
• Headquarters: Lower Normandy, Normandy, France
• Employee distribution: France 100%
• Founded year: 2003
• Headcount: 11-50
• LinkedIn: elmatec

Elmatec is a private company based in Lower Normandy, France, established in 2003. It specializes in water treatment solutions, particularly in purification and membrane separation processes. The company serves a range of industrial clients, including those in the food processing, pharmaceutical, and healthcare sectors. Elmatec combines engineering services with advanced water treatment technologies, ensuring that their solutions meet stringent industry standards. They have developed a strong reputation for providing customized solutions that address specific client needs. Elmatec has also been ISO 9001 certified since 2017, reflecting their commitment to quality management. Their expertise extends to producing ultrapure water and integrating various treatment technologies to deliver effective solutions. Elmatec operates entirely within France, emphasizing their focus on the local market.

11. NEREUS - BioEnergy & Water

• Website: nereus-water.com
• Ownership type: Private
• Headquarters: Le Pouget, Occitanie, France
• Founded year: 2013
• Headcount: 11-50
• LinkedIn: nereus---bioenergy-%26-water

NEREUS - BioEnergy & Water, founded in 2013 and based in Le Pouget, Occitanie, France, is a private company dedicated to the treatment and recycling of wastewater. With a team of approximately 28 employees, NEREUS designs, assembles, and operates industrial installations that focus on the treatment, reuse, and recycling of wastewater across various sectors, including industries, agro-food, bioenergy, tourism, and municipal services. The company is recognized for its innovative dynamic filtration technology, which significantly reduces energy consumption while ensuring high-quality water output. NEREUS emphasizes sustainability and environmental compliance, helping clients manage their water resources effectively. Their projects demonstrate a commitment to creating an economy of water reuse, addressing the pressing challenges of water scarcity and pollution.

12. Matsya

• Website: matsya.systems
• Ownership type: Private
• Headquarters: Paris, Île-De-France, France
• Employee distribution: France 100%
• Founded year: 2018
• Headcount: 1-10
• LinkedIn: matsya-water

Matsya Systems, founded in 2018 and based in Paris, is a private environmental services company specializing in wastewater treatment and water pollution solutions. With a small team of dedicated professionals, Matsya designs and deploys innovative technologies aimed at decontaminating water. Their products are tailored to meet the needs of both businesses and municipalities, ensuring compliance with environmental regulations. Matsya's commitment to sustainability is reflected in their use of 100% recyclable materials in their appliances. The company actively seeks to reduce ecological footprints by providing affordable, safe, and easy-to-use solutions for wastewater treatment. Their focus on innovation and quality positions them as a relevant player in the water treatment industry, addressing pressing global water challenges.

13. AquaTech Innovation

• Website: aquatech-innovation.com
• Ownership type: Venture Capital
• Headquarters: Clapiers, Occitanie, France
• Employee distribution: France 91%, Canada 9%
• Latest funding: Seed, $2.1M, October 2023
• Founded year: 2018
• Headcount: 11-50
• LinkedIn: aquatech-innovation

AquaTech Innovation, established in 2018 and based in Clapiers, Occitanie, France, is a GreenTech company dedicated to providing advanced water management solutions. With a workforce of 22 employees, the company specializes in wastewater treatment, water recycling, and data management. Their product offerings include AquaCollect, AquaClear, AquaReUse, and AquaData, each designed to meet specific needs in various sectors, including campgrounds and ports. AquaTech Innovation emphasizes sustainability and compliance with environmental regulations, ensuring that their solutions not only address immediate water management challenges but also contribute to long-term ecological health. The company has recently secured seed funding of approximately 2.1 million euros, reflecting strong investor interest in their innovative approach to water treatment.

14. Micr'eau

• Website: micreau.fr
• Ownership type: Private
• Headquarters: Paris, Île-De-France, France
• Employee distribution: France 88%, Chile 12%
• Founded year: 1999
• Headcount: 11-50
• LinkedIn: micr%27eau

Micr'eau, founded in 1999 and based in Paris, is a private company specializing in water treatment and biogas engineering. With a workforce of 17 employees, the firm operates primarily in France and Chile, focusing on innovative solutions for drinking water and wastewater management. Micr'eau is particularly noted for its expertise in arsenic removal, having constructed over 70 treatment plants worldwide. The company also engages in biogas systems, providing services such as gas storage and flaring. Their clientele includes various industries, notably mining and agri-food, showcasing their ability to cater to specific sector needs. Micr'eau's commitment to technological advancement is evident in their participation in international projects and collaborations, enhancing their footprint in the water treatment sector.

15. Cabinet Merlin

• Website: cabinet-merlin.fr
• Ownership type: Family Owned
• Headquarters: Lyon, Auvergne-Rhône-Alpes, France
• Employee distribution: France 95%, Senegal 3%, Other 2%
• Founded year: 1922
• Headcount: 501-1000
• LinkedIn: cabinet-merlin

Cabinet Merlin, based in Lyon, France, is a family-owned engineering firm that has been operational since 1922. The company specializes in environmental consulting and infrastructure development, with a strong emphasis on water treatment. Their portfolio includes a wide range of services such as the design and management of potable water systems, wastewater treatment facilities, and advanced sludge treatment processes. Each year, Cabinet Merlin manages the capture, treatment, and distribution of over 300 million cubic meters of water, alongside the treatment of more than 200 million cubic meters of wastewater. Their innovative approach includes the integration of energy-efficient technologies and the development of smart plants that optimize operational efficiency. With a client base that includes municipalities and organizations focused on sustainable solutions, Cabinet Merlin plays a crucial role in enhancing public health and urban infrastructure.

16. Groupe Orizon

• Website: groupe-orizon.fr
• Ownership type: Private
• Headquarters: Gimont, Occitanie, France
• Employee distribution: France 100%
• Founded year: 2018
• Headcount: 51-200
• LinkedIn: groupeorizon

Groupe Orizon, based in Gimont, Occitanie, France, is a private water treatment company founded in 2018. With a workforce of approximately 28 employees, the company specializes in providing tailored water treatment solutions for the industrial, health, and tertiary sectors. Their services include chemical treatments, maintenance, and disinfection, ensuring the safety and quality of water systems across France. Orizon's approach combines expertise with a commitment to innovation, focusing on environmentally responsible practices. They offer a wide range of products, including inhibitors, biocides, and flocculants, and provide essential services such as preventive maintenance and emergency interventions. Their network of agencies allows for localized support, enhancing their responsiveness to client needs. Orizon's dedication to quality and service positions them as a significant player in the water treatment industry.

17. Assisteaux

• Website: assisteaux.com
• Ownership type: Private
• Headquarters: Valence-En-Poitou, Nouvelle-Aquitaine, France
• Employee distribution: France 100%
• Founded year: 1972
• Headcount: 11-50
• LinkedIn: assisteaux

Assisteaux, founded in 1972 and based in Valence-En-Poitou, Nouvelle-Aquitaine, France, is a private company specializing in water treatment solutions. With a workforce of around 24 employees, Assisteaux has built a strong presence in the industry over the past five decades. The company focuses on the maintenance and installation of water treatment systems tailored for domestic, industrial, and public sector clients. Their expertise spans various aspects of water treatment, including the management of wastewater and the enhancement of water quality for residential use. Assisteaux prides itself on its commitment to customer satisfaction, providing reliable services and products that ensure the effective management of water resources. They have developed a network of skilled technicians who deliver maintenance and emergency services across France, further solidifying their position in the market. Assisteaux also operates an online store dedicated to water treatment products, aiming to expand their reach and service offerings.

18. Hydrea

• Website: hydrea.com
• Ownership type: Private
• Headquarters: Lacroix-Saint-Ouen, Hauts-De-France, France
• Employee distribution: France 100%
• Founded year: 1992
• Headcount: 51-200
• LinkedIn: hydrea

Hydrea, based in Lacroix-Saint-Ouen, Hauts-De-France, is a private company founded in 1992 and operates as part of the SUEZ Group. This company specializes in water and waste management, providing essential services to public utilities and local authorities. Hydrea focuses on innovative solutions that address environmental challenges, particularly in water treatment and resource management. Their services include optimizing water resources, improving network performance, and developing sustainable practices to manage crises related to water stress. With a workforce of approximately 53 employees, Hydrea is dedicated to enhancing service delivery and promoting responsible consumer practices in water usage. The company has not reported any recent funding, indicating a stable operational model within the established SUEZ framework.

19. Fournié et Cie SCOP SA

• Website: fournie.fr
• Ownership type: Private
• Headquarters: Rivehaute, Nouvelle-Aquitaine, France
• Employee distribution: France 100%
• Founded year: 1965
• Headcount: 51-200
• LinkedIn: fourni%c3%a9-et-cie-scop-sa

Fournié et Cie SCOP SA, based in Rivehaute, Nouvelle-Aquitaine, France, is a cooperative water management company founded in 1965. The firm specializes in the pumping and treatment of wastewater and drinking water, serving local communities, industries, and private individuals. With a dedicated team of approximately 70 qualified employees, Fournié et Cie emphasizes quality service and customer satisfaction. The company has developed a strong reputation for its expertise in various areas, including water pumping, wastewater treatment, and maintenance services. Their operations are primarily focused on enhancing water supply and treatment solutions, particularly in the Centre-West region of France. The transition to a cooperative model in 2017, following the retirement of the majority shareholder, reflects a commitment to employee ownership and engagement in the business. This structure may contribute to a strong focus on service quality and community relations.

20. Safege - Consulting

• Website: safege.com
• Ownership type: Private
• Headquarters: Nanterre, Île-De-France, France
• Founded year: 1947
• Headcount: 1001-5000
• LinkedIn: safege

Safege - Consulting, a part of the SUEZ Group, has been operational since 1947 and is based in Nanterre, Île-De-France, France. The company specializes in environmental services, particularly in water and waste management. They offer innovative solutions aimed at sustainable resource management, focusing on critical areas such as drinking water supply and wastewater treatment. Safege collaborates with public authorities and private sector operators to tackle pressing environmental challenges and ensure compliance with sustainability standards. Their expertise extends to optimizing water resources, improving network performance, and developing sustainable practices to manage water stress and promote responsible consumption. Safege's projects include advanced water treatment facilities and initiatives to enhance the efficiency of water distribution networks, showcasing their commitment to addressing the complexities of water management in various regions.

21. TRESCH Traitement des eaux

• Website: tresch-sa.fr
• Ownership type: Private
• Headquarters: Chassieu, Auvergne-Rhône-Alpes, France
• Employee distribution: France 100%
• Founded year: 1981
• Headcount: 11-50
• LinkedIn: tresch

TRESCH Traitement des eaux, based in Chassieu, Auvergne-Rhône-Alpes, France, is a private company specializing in industrial water treatment solutions. Established in 1981, TRESCH has built a solid reputation over the years, focusing on sectors such as food processing and energy. The company provides a wide array of products and services, including water treatment equipment, consulting, and maintenance services. Their expertise extends to the design and installation of customized water treatment units, ensuring that clients receive tailored solutions to meet their specific needs. TRESCH is also committed to training and supporting clients through their MyTRESCH online platform, which facilitates ongoing monitoring and management of water treatment processes. With a workforce of 35 employees, the company operates entirely within France but has a significant export component, indicating its capability to serve international markets. TRESCH's proactive approach to compliance with industry regulations and its focus on sustainable practices further enhance its standing in the water treatment sector.

22. Jousse

• Website: jousse-sa.fr
• Ownership type: Private
• Headquarters: Parigné-Sur-Braye, Pays De La Loire, France
• Employee distribution: France 100%
• Founded year: 1945
• Headcount: 11-50
• LinkedIn: jousse-sas

Jousse SAS, based in Parigné-Sur-Braye, Pays De La Loire, France, is a private company specializing in water treatment solutions. Established in 1945, Jousse has built a reputation for quality in the design, construction, and maintenance of water treatment and pumping stations. The company primarily serves local governments and industrial clients, focusing on essential services for water purification and wastewater management. With a workforce of 36 employees, Jousse operates mainly in the Grand Ouest and Paris regions of France. Their technical capabilities include the treatment of potable water, wastewater treatment, and the installation of pumping systems. Jousse is committed to providing reliable and efficient water treatment solutions, ensuring compliance with environmental standards and meeting the needs of their clients. Their long history and specialized focus position them as a relevant player in the water treatment industry.

Water Treatment Insights: Key Companies in France

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