The industrial wastewater treatment sector plays a critical role in managing contaminated water produced by various industries, ensuring that it meets local environmental standards. Companies operating in this sphere focus on treatments that purify water and facilitate water recycling, thereby conserving valuable resources. As regulations tighten globally and sustainability practices become paramount, the industry is shifting toward innovative technologies, such as membrane bioreactors and advanced oxidation processes. This evolution not only addresses environmental concerns but also unlocks economic benefits, as businesses look for ways to streamline operations while minimizing environmental footprints.

The companies listed are a mix of established and newer players known for their specialized approaches to wastewater treatment. Ranging in size from small teams to workforces over 10,000, these firms are based in locations across the globe including the USA, Germany, and France. Founded from 1933 to 2013, their expertise covers crucial areas like wastewater management, water recycling, and emerging technologies, allowing them to tackle industry-specific challenges effectively.

Read on to learn more about the top industrial wastewater treatment companies.

Top 23 Industrial Waste Water Treatment Companies

1. ChemTreat

• Website: chemtreat.com
• Ownership type: Corporate
• Headquarters: Glen Allen, Virginia, United States (USA)
• Employee distribution: United States (USA) 68%, Mexico 14%, Brazil 8%, Other 11%
• Latest funding: $435.0M, May 2007
• Founded year: 1968
• Headcount: 1001-5000
• LinkedIn: chemtreat-inc-

ChemTreat, Inc., based in Glen Allen, Virginia, has been a significant player in the water treatment industry since its founding in 1968. With a workforce of over 1,400 employees, the company provides tailored industrial water treatment solutions across multiple sectors, including chemical processing, food and beverage, and power generation. ChemTreat offers a comprehensive suite of services, notably in boiler and cooling water treatment, wastewater management, and intelligent water management systems. Their focus on innovative solutions is evident in their research and development efforts, which aim to enhance operational efficiency and environmental compliance for their clients. ChemTreat's commitment to customer service is reflected in their long-term relationships with clients, ensuring that they meet the unique water treatment challenges faced by various industries.

2. EnviroChemie GmbH

• Website: envirochemie.com
• Ownership type: Private
• Headquarters: Rossdorf, Hesse, Germany
• Employee distribution: Germany 87%, Switzerland 5%, Russia 4%, Other 4%
• Founded year: 1976
• Headcount: 1001-5000
• LinkedIn: envirochemie

EnviroChemie GmbH, based in Rossdorf, Hesse, Germany, is a private company founded in 1976. It specializes in industrial water management solutions, providing a range of services that include wastewater treatment, water recycling, and digital monitoring through its WaterExpert platform. The company serves various industries, notably food and beverage, pharmaceuticals, and chemical sectors, helping clients meet stringent environmental regulations and optimize water usage. With a workforce of approximately 187 employees, EnviroChemie operates primarily in Germany, with a presence in Switzerland, Russia, and Austria. Their commitment to sustainability is evident in their energy-efficient solutions, which significantly reduce CO2 emissions. EnviroChemie is also part of the EnviroWater Group, a network of experts focused on sustainable water use in industrial applications.

3. 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, founded in 1933 and based in Issy-Les-Moulineaux, France, is a private equity-owned water management company. With over 10,000 employees, Saur specializes in providing drinking water, wastewater treatment, and engineering solutions. The company serves municipalities and industries, focusing on efficient water resource management and sustainability. Saur operates thousands of wastewater treatment plants across various countries, demonstrating their extensive involvement in the industry. They are committed to innovation, offering advanced solutions for industrial water management, including effluent treatment and recycling. Recently, Saur secured significant funding, amounting to approximately €598 million, to support their operations and growth initiatives. This financial backing underscores their active role in the water sector and their capacity to address the evolving challenges of water management.

4. Aquatec Maxcon

• Website: aquatecmaxcon.com.au
• Ownership type: Private
• Headquarters: Wulkuraka, Queensland, Australia
• Employee distribution: Australia 97%, United Kingdom (UK) 3%
• Founded year: 1970
• Headcount: 201-500
• LinkedIn: aquatec-maxcon-pty-ltd

Aquatec Maxcon Pty Ltd, based in Wulkuraka, Queensland, Australia, specializes in water and wastewater technology and equipment. Established in 1970, the company has developed a robust portfolio of services that includes engineering, project management, and installation for both municipal and industrial clients. Their offerings cover a wide array of advanced water treatment technologies, wastewater treatment solutions, and waste-to-energy initiatives. With a workforce of approximately 108 employees, Aquatec Maxcon has successfully completed numerous projects across Australia and internationally, showcasing their expertise in the field. The company is recognized for its innovative approaches, such as the implementation of the Nereda® Aerobic Granular Biomass technology, which significantly enhances sewage treatment efficiency. Their commitment to research and development, alongside a focus on environmentally sustainable solutions, underscores their role as a key player in the water management industry.

5. IDE Technologies

• Website: ide-tech.com
• Ownership type: Corporate
• Headquarters: Kadima Zoran, Center, Israel
• Employee distribution: Israel 43%, Chile 24%, India 21%, Other 11%
• Latest funding: January 2019
• Founded year: 1965
• Headcount: 201-500
• LinkedIn: ide-technologies-ltd.

IDE Technologies, founded in 1965 and based in Kadima Zoran, Israel, is a water treatment company that specializes in advanced desalination and water treatment solutions for both industrial and municipal clients. With a workforce of approximately 577 employees, IDE has established a global presence, operating in countries such as Chile, India, and the United States. The company offers a comprehensive range of services, including seawater desalination, wastewater treatment, and operations and maintenance. IDE Technologies partners with municipalities and industries to enhance water security and sustainability, focusing on innovative solutions that address the growing challenges of water scarcity and environmental regulations. Their expertise spans various sectors, including power generation, petrochemicals, and microelectronics, making them a significant player in the water treatment industry.

6. WOG Technologies

• Website: woggroup.com
• Ownership type: Private
• Headquarters: Singapore
• Employee distribution: India 85%, Indonesia 6%, Saudi Arabia 3%, Other 6%
• Founded year: 2010
• Headcount: 201-500
• LinkedIn: wog-technologies-private-limited

WOG Technologies, based in Singapore, is a private company founded in 2010 that specializes in water treatment, particularly in the area of wastewater management. The company offers a wide array of services, including effluent treatment, drinking water purification, and the generation of renewable energy from waste. WOG Technologies serves a variety of clients, including industrial sectors and municipal authorities, who depend on their expertise for sustainable water management solutions. With a workforce primarily located in India, WOG Technologies has expanded its operations to several countries, including Indonesia, Saudi Arabia, and the United Arab Emirates. The company is recognized for its innovative approaches to wastewater treatment, utilizing advanced technologies such as anaerobic treatment systems and membrane bioreactors. Their commitment to environmental stewardship and compliance with stringent regulations makes them a significant player in the water treatment industry.

7. Ecosphere Technologies, Inc

• Website: ecospheretech.com
• Ownership type: Private
• Headquarters: Stuart, Florida, United States (USA)
• Employee distribution: United States (USA) 100%
• Latest funding: Other (Grant), April 2013
• Founded year: 1998
• Headcount: 51-200
• LinkedIn: ecosphere-technologies-inc

Ecosphere Technologies, Inc., based in Stuart, Florida, operates primarily through its Brisben Water division, which specializes in advanced water treatment solutions. Founded in 1998, the company has developed a portfolio of patented technologies aimed at addressing significant water management challenges across multiple industries. Their flagship Ozonix® technology provides a chemical-free method for treating and recycling water, making it particularly appealing in sectors like oil and gas, agriculture, and municipal services. Ecosphere's commitment to sustainability is evident in their focus on reducing operational costs while enhancing compliance with environmental regulations. They have also engaged in research and development to further innovate in water treatment processes, demonstrating a proactive approach to evolving industry needs.

8. Gradiant

• Website: gradiant.com
• Ownership type: Venture Capital
• Headquarters: Woburn, Massachusetts, United States (USA)
• Employee distribution: India 33%, Singapore 25%, United Arab Emirates 11%, Other 31%
• Latest funding: Series D, $225.0M, May 2023
• Founded year: 2013
• Headcount: 501-1000
• LinkedIn: gradiant-corporation

Gradiant, founded in 2013 and headquartered in Woburn, Massachusetts, is a water treatment company that focuses on advanced solutions for industrial water and wastewater management. With a workforce of around 601 employees, the company serves vital industries, including semiconductors and pharmaceuticals. Gradiant's mission is to ensure clean, fresh water for future generations by addressing global water scarcity through innovative technologies. Their offerings include a range of chemical formulations and treatment technologies designed to minimize freshwater withdrawal, optimize wastewater disposal, and recover valuable resources from wastewater streams. Recently, Gradiant secured $225 million in Series D funding, reflecting strong market confidence in their approach to sustainable water management. The company operates globally, with a significant presence in India, Singapore, and the UAE, showcasing their commitment to tackling water challenges across various regions.

9. Waterleau

• Website: waterleau.com
• Ownership type: Corporate
• Headquarters: Haacht, Flanders, Belgium
• Employee distribution: Morocco 41%, Belgium 34%, South Africa 6%, Other 19%
• Latest funding: July 2019
• Founded year: 2000
• Headcount: 201-500
• LinkedIn: waterleau

Waterleau, founded in 2000 and based in Haacht, Belgium, is a water technology company that specializes in wastewater management and water treatment solutions. With a workforce of approximately 409 employees, the company serves a variety of clients, including industries and municipalities, helping them optimize water usage and comply with environmental standards. Waterleau offers a range of services, including wastewater treatment, drinking water production, and energy recovery from wastewater. Their innovative technologies and consulting services are designed to enhance water resource management. The company operates in several countries, including Morocco, South Africa, and Portugal, reflecting its international reach and commitment to sustainable water practices. Waterleau's focus on advanced solutions, such as PFAS removal and energy recovery, positions them as a relevant player in the industrial wastewater treatment sector.

10. Netsol Water

• Website: netsolwater.com
• Ownership type: Private
• Headquarters: Greater Noida, Uttar Pradesh, India
• Employee distribution: India 100%
• Founded year: 2012
• Headcount: 51-200
• LinkedIn: netsol-water-solutions

Netsol Water, established in 2012 and based in Greater Noida, Uttar Pradesh, India, is a private company dedicated to providing comprehensive water treatment solutions. The firm specializes in wastewater management, offering a variety of products such as sewage treatment plants and effluent treatment plants designed for industrial and commercial applications. With a strong emphasis on sustainability, Netsol Water aims to help clients effectively manage their water resources while minimizing environmental impact. The company has successfully completed over 500 projects, showcasing its capability and commitment to quality. Netsol Water also engages in research and development to innovate and improve its offerings, ensuring they meet the evolving needs of the industry. Their focus on customer satisfaction and operational efficiency positions them as a notable player in the wastewater treatment sector.

11. Aqua-Aerobic Systems, Inc.

• Website: aqua-aerobic.com
• Ownership type: Corporate
• Headquarters: Loves Park, Illinois, United States (USA)
• Employee distribution: United States (USA) 98%, Other 2%
• Latest funding: January 2016
• Founded year: 1969
• Headcount: 51-200
• LinkedIn: aqua-aerobic-systems-inc-

Aqua-Aerobic Systems, Inc., based in Loves Park, Illinois, specializes in water and wastewater treatment solutions. Since its inception in 1969, the company has developed a wide array of products, including aeration systems, biological treatment technologies, filtration systems, and advanced PFAS removal solutions. Aqua-Aerobic serves a variety of clients, including municipal and industrial entities, ensuring compliance with treatment processes that are both efficient and effective. The company prides itself on its engineering expertise and robust customer support, which are integral to its operations. Aqua-Aerobic is also involved in innovation through its Research & Technology Center, where it conducts technical seminars and workshops to advance industry practices. Their commitment to customer service is evident in their “Customer for Life” philosophy, which emphasizes ongoing support before, during, and after product installation.

12. Envirogen Technologies, Inc.

• Website: envirogen.com
• Ownership type: Private Equity
• Headquarters: Houston, Texas, United States (USA)
• Employee distribution: United States (USA) 97%, United Kingdom (UK) 3%
• Latest funding: August 2016
• Founded year: 2009
• Headcount: 51-200
• LinkedIn: envirogen-technologies-inc.

Envirogen Technologies, Inc., based in Houston, Texas, is a private equity-owned company founded in 2009. With a workforce of approximately 89 employees, the company focuses on environmental technology and process solutions for water treatment. Envirogen provides a comprehensive suite of services and products aimed at addressing the water and wastewater treatment needs of various industries, including mining, power generation, and food and beverage. Their expertise spans over three decades, during which they have developed effective solutions to meet regulatory standards and enhance operational efficiency. The company offers a range of technologies, including fluidized bed reactors, ion exchange systems, and advanced filtration methods, tailored to tackle complex wastewater challenges. Envirogen's commitment to delivering reliable and efficient water treatment solutions makes them a significant player in the industry.

13. Bluewater Bio

• Website: bluewaterbio.com
• Ownership type: Venture Capital
• Headquarters: London, England, United Kingdom (UK)
• Employee distribution: United Kingdom (UK) 65%, Bahrain 27%, Saudi Arabia 4%, Other 4%
• Latest funding: December 2020
• Founded year: 2007
• Headcount: 51-200
• LinkedIn: bluewater-bio

Bluewater Bio, founded in 2007 and based in London, is a water treatment company that specializes in innovative solutions for wastewater treatment, desalination, and water reuse. The company serves both industrial and municipal clients, providing advanced technologies that enhance water management and promote sustainability. With a workforce of around 48 employees, Bluewater Bio operates primarily in the UK, Bahrain, Saudi Arabia, and the UAE. Their notable technologies include HYBACS®, a hybrid activated sludge process, and FilterClear®, which have been recognized for their effectiveness in treating wastewater and reducing pollution. The company has successfully cleaned over 1.6 billion tonnes of wastewater, contributing to the availability of recycled water for various applications. Bluewater Bio's commitment to tackling the global water crisis is evident in their projects and partnerships across water-scarce regions, making them a significant player in the industry.

14. BioKube

• Website: biokube.com
• Ownership type: Corporate
• Headquarters: Denmark
• Employee distribution: Denmark 54%, Paraguay 15%, Bolivia 15%, Other 15%
• Latest funding: May 2022
• Founded year: 2003
• Headcount: 11-50
• LinkedIn: biokube-a-s

BioKube, founded in 2003 and based in Denmark, is a wastewater treatment company that specializes in innovative solutions for treating and reusing wastewater. With a workforce of 27 employees, the company serves a range of clients, including municipalities, hotels, and industrial sectors. BioKube's offerings include packaged sewage treatment plants and advanced technologies for converting sludge into energy, ensuring compliance with environmental standards while promoting sustainability. Their systems are designed for various applications, from small households to large cities, and are recognized for their energy efficiency and effectiveness in treating wastewater. BioKube operates in over 60 countries, demonstrating a significant global presence. The company is committed to the principles of the circular economy and actively contributes to fulfilling the United Nations Sustainable Development Goals (SDGs).

15. Aquabio Ltd.

• Website: aquabio.co.uk
• Ownership type: Private
• Headquarters: United States (USA)
• Employee distribution: United Kingdom (UK) 100%
• Founded year: 1997
• Headcount: 11-50
• LinkedIn: aquabio-ltd.

Aquabio Ltd. is a private company based in the United Kingdom, specializing in wastewater treatment solutions tailored for industrial applications. Established in 1997, Aquabio has developed a reputation for providing innovative technologies that address the complexities of industrial wastewater management. Their expertise spans various sectors, including food and beverage, chemical processing, and meat and poultry processing. The company offers a range of advanced treatment technologies, such as aerobic and anaerobic membrane bioreactors (MBRs) and reverse osmosis systems, designed to optimize water recovery and ensure compliance with environmental regulations. Aquabio's services extend from initial concept development to complete installation and ongoing support, demonstrating their commitment to delivering effective and sustainable wastewater treatment solutions. With a dedicated team and a focus on environmental sustainability, Aquabio continues to play a significant role in the industrial wastewater treatment industry.

16. Condorchem Enviro Solutions

• Website: condorchem.com
• Ownership type: Private
• Headquarters: L'Hospitalet De Llobregat, Catalonia, Spain
• Employee distribution: Spain 79%, France 21%
• Founded year: 1992
• Headcount: 11-50
• LinkedIn: condorchem-envitech

Condorchem Enviro Solutions is an environmental engineering firm based in L'Hospitalet De Llobregat, Catalonia, Spain. Established in 1992, the company specializes in providing comprehensive solutions for industrial wastewater treatment and air emissions control. With a dedicated team of approximately 28 employees, Condorchem focuses on optimizing resource use and ensuring compliance with environmental regulations for its industrial clients. Their offerings include advanced technologies such as vacuum evaporators, biological treatment systems, and reverse osmosis equipment, among others. The company is committed to sustainability, promoting practices like zero liquid discharge and resource recovery from waste. Condorchem has also expanded its reach internationally, with projects in various countries, showcasing its capability to address global environmental challenges. Their emphasis on research and development, along with a strong portfolio of successful projects, positions them as a notable player in the industrial wastewater treatment industry.

17. Hydroguard Systems

• Website: hydroguardsystems.com
• Ownership type: Private
• Headquarters: Valenzuela, Metro Manila, Philippines
• Founded year: 2008
• Headcount: 51-200
• LinkedIn: hydroguardsystems

Hydroguard Systems Corporation, founded in 2008 and based in Valenzuela, Metro Manila, Philippines, is a private company focused on water and wastewater treatment services. The firm provides a comprehensive suite of solutions, including domestic and municipal water treatment, industrial process water treatment, and environmental consulting. Hydroguard Systems has established itself in the industry by designing, constructing, and maintaining water and wastewater systems for various clients, particularly in the hospitality and industrial sectors. With a portfolio that includes 64 completed sewage treatment plant design and build projects and 40 awarded operation and maintenance contracts, the company demonstrates a commitment to effective water resource management. Their mission emphasizes delivering superior services at affordable costs, while their vision aims for maximum quality in water and wastewater treatment services. Hydroguard Systems is recognized for its integrity and dependability in the industry.

18. Hydro Industries Limited

• Website: hydro-industries.co.uk
• Ownership type: Private
• Headquarters: London, England, United Kingdom (UK)
• Employee distribution: United Kingdom (UK) 71%, Saudi Arabia 19%, Ecuador 10%
• Founded year: 2010
• Headcount: 51-200
• LinkedIn: hydroindustries

Hydro Industries Limited is a water technology company based in London, UK, established in 2010. The firm specializes in industrial wastewater treatment, biosolids management, and safe drinking water solutions. With a workforce of around 32 employees, Hydro Industries operates on a global scale, serving clients across various sectors. Their services are designed to help businesses meet environmental standards while recovering valuable resources from wastewater. The company prides itself on its innovative and sustainable practices, utilizing bespoke systems tailored to the specific needs of clients. Hydro Industries has made significant strides in treating industrial wastewater, managing to recover over a billion liters of usable water from domestic waste in Saudi Arabia. They also focus on the circular economy, aiming to transform waste into valuable resources. Their commitment to humanitarian efforts is evident in their work to provide safe drinking water in remote areas, aligning with global goals for water and sanitation. Hydro Industries Limited continues to push the boundaries of water technology, making a notable impact in the industry.

19. Eco Protection Engineers - India

• Website: ecoprotection.in
• Ownership type: Private
• Headquarters: Chennai, Tamil Nadu, India
• Employee distribution: India 100%
• Founded year: 1999
• Headcount: 201-500
• LinkedIn: eco-protection-engineers---india

Eco Protection Engineers - India, established in 1999, is an engineering and construction company based in Chennai, Tamil Nadu. The firm specializes in water and wastewater management, providing a range of services that include the design and construction of potable water treatment plants, wastewater treatment and recycling plants, and solid waste management solutions. With a workforce of over 500 employees, Eco Protection Engineers has successfully completed more than 500 projects across India and in several other countries. Their clientele includes public health departments and various industries, showcasing their capability to handle both municipal and industrial projects. The company is committed to implementing state-of-the-art technology in their projects, such as Zero Liquid Discharge systems and advanced sewage treatment plants, which are crucial for sustainable water management. Their involvement in significant projects, including those funded by international organizations, further underscores their relevance in the water treatment sector.

20. Siltbuster Ltd

• Website: siltbuster.com
• Ownership type: Private
• Headquarters: Monmouth, Wales, United Kingdom (UK)
• Employee distribution: United Kingdom (UK) 100%
• Founded year: 2003
• Headcount: 51-200
• LinkedIn: siltbuster-ltd

Siltbuster Ltd, founded in 2003 and based in Monmouth, Wales, is a private company specializing in water treatment solutions. With a workforce of around 80 employees, Siltbuster operates primarily in the UK, providing tailored environmental solutions for sectors such as infrastructure, industrial, municipal, and mining. The company offers a comprehensive suite of technologies for water processing and management, ensuring compliance with environmental standards. Their business model includes both the rental and sale of equipment, allowing clients to choose the most suitable option for their needs. Siltbuster is recognized for its commitment to sustainability and customer service, and it operates the largest rental fleet of water treatment equipment in the UK. Their expertise is backed by in-house laboratories, ensuring that their solutions are effective, safe, and environmentally beneficial.

21. Aquatreat

• Website: aquatreat.eu
• Ownership type: Private
• Headquarters: Aarschot, Flanders, Belgium
• Employee distribution: Belgium 49%, Thailand 9%, Saudi Arabia 9%, Other 34%
• Founded year: 1983
• Headcount: 11-50
• LinkedIn: aquatreat

Aquatreat, founded in 1976 and based in Aarschot, Belgium, specializes in ecological solutions for industrial water treatment. The company offers a range of products and services, including cooling water treatment, boiler water treatment, and reverse osmosis solutions. With a workforce of approximately 37 employees, Aquatreat serves industrial clients who require effective water management strategies. Their commitment to sustainability is reflected in their operations, which have achieved zero waste water discharge since 2001. The company utilizes rainwater for production and employs innovative technologies, such as a glass pyramid for natural evaporation and condensation of waste water. Aquatreat is also known for its research and development efforts, continuously working on new solutions to address water treatment challenges while minimizing environmental impact. Their focus on ecological products and energy efficiency further underscores their relevance in the industrial waste water treatment sector.

22. Shubham Aqua Vitro Pvt. Ltd.

• Website: shubhamindia.com
• Ownership type: Private
• Headquarters: Ahmedabad, Gujarat, India
• Employee distribution: India 100%
• Founded year: 2010
• Headcount: 11-50
• LinkedIn: shubham-inc

Shubham Aqua Vitro Pvt. Ltd., established in 2010 and based in Ahmedabad, Gujarat, is a private company dedicated to water and wastewater management. With a workforce of 11 to 50 employees, the company has carved a niche in providing comprehensive treatment solutions across various sectors, including industrial, government, and commercial. Their product offerings include advanced systems such as Reverse Osmosis Plants, Effluent Treatment Plants, and Sewage Treatment Plants, all designed with a focus on sustainability and efficiency. Shubham Aqua Vitro emphasizes the importance of operational maintenance, ensuring that their systems perform optimally for their clients. The company collaborates with international partners, enhancing its technological capabilities and service offerings. Their commitment to addressing water scarcity and pollution challenges positions them as a relevant player in the water treatment industry.

23. Trojan Technologies

• Website: trojantechnologies.com
• Ownership type: Corporate
• Headquarters: London, Ontario, Canada
• Employee distribution: Canada 80%, United States (USA) 7%, Other 14%
• Latest funding: $185.0M, September 2004
• Founded year: 1977
• Headcount: 501-1000
• LinkedIn: trojan-technologies

Trojan Technologies, founded in 1977 and based in London, Ontario, Canada, is a corporate entity specializing in innovative water treatment solutions. The company focuses on ultraviolet (UV) treatment and advanced oxidation systems, which are essential for ensuring safe and clean water across various applications. Trojan Technologies serves a wide range of sectors, including municipal water facilities and industrial markets, providing critical products and services that meet stringent water quality standards. Their systems are designed to tackle contamination issues effectively, making them a key player in the water treatment industry. With a workforce of approximately 717 employees, the company has a strong presence in Canada and the United States, and it has installed over 11,000 municipal TrojanUV water systems globally, treating a collective flow rate of over 70 billion gallons daily. This extensive experience underscores their expertise and commitment to water quality.

Industrial Waste Water Treatment Insights: Key Companies

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