The drinking water purification plant construction industry plays a crucial role in securing access to clean water. It involves companies that design, build, and maintain facilities that provide safe drinking water. These firms specialize in various technologies, such as filtration and disinfection, and serve municipalities, industries, and agricultural sectors. As global demand for clean water continues to rise, the industry is seeing advancements in eco-friendly practices, digital monitoring, and innovative purification methods. Notably, issues surrounding climate change are prompting a greater emphasis on sustainable water management solutions, making this sector increasingly vital.


This list highlights 21 prominent drinking water purification plant construction companies with varied sizes, from small firms to large enterprises. Based in locales from Italy to India, these companies were founded between 1933 and 2017. Their specializations range from design and construction to operations, indicating a broad spectrum of capabilities. Noteworthy companies include Saur, with over 10,000 employees and considerable financial backing, and the innovative Ecoimpianti Sud, known for its commitment to environmental standards. The collective expertise presented here merits attention for their roles in addressing water-quality challenges across diverse regions.


Continue reading to discover the top drinking water purification plant construction companies.


Top 21 Drinking Water Purification Companies


1. So.T.Eco. Spa

  • Website: sotecospa.com
  • Ownership type: Private
  • Headquarters: Santa Maria Capua Vetere, Campania, Italy
  • Employee distribution: Italy 100%
  • Founded year: 1976
  • Headcount: 51-200
  • LinkedIn: so-t-eco-spa

So.T.Eco. Spa, established in 1976 and based in Santa Maria Capua Vetere, Campania, Italy, is a water treatment company that focuses on the design, construction, and maintenance of water purification and wastewater treatment plants. With a workforce of 51-200 employees, the company has built a solid reputation over its decades of operation. So.T.Eco. Spa caters to both public entities and private organizations, providing essential services that ensure safe drinking water and adherence to environmental regulations. Their commitment to quality is reflected in their certifications, including ISO 9001 and ISO 14001, which demonstrate their dedication to maintaining high standards in their operations. The company has also developed partnerships with various European firms, enhancing their capabilities in research and innovation. Their portfolio includes numerous completed projects, showcasing their expertise in the field of water treatment and purification.


2. Vialterra Infraestructuras S.A.

  • Website: vialterra.com
  • Ownership type: Private
  • Headquarters: Philippines
  • Employee distribution: Spain 100%
  • Founded year: 2000
  • Headcount: 51-200
  • LinkedIn: vialterra

Vialterra Infraestructuras S.A. is a construction firm based in Spain, established in 2000. With a workforce of approximately 137 employees, the company operates primarily in the civil engineering and environmental services sectors. Vialterra specializes in innovative building solutions and offers a range of services, including water purification, energy efficiency, and infrastructure development. Their expertise in water purification includes advanced technologies for the design, construction, operation, and maintenance of treatment plants, ensuring the delivery of high-quality water. The company serves both public and private sector clients, contributing to various projects across Spain. Vialterra is committed to sustainability and environmental protection, integrating eco-friendly practices into their operations.


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, based in Issy-Les-Moulineaux, France, is a water management company that has been operational since 1933. With a workforce of over 6,200 employees, Saur specializes in providing comprehensive solutions for drinking water and wastewater treatment. The company serves municipalities and industries, ensuring efficient management of water resources. Saur operates in multiple countries, managing thousands of water service contracts and concessions, which include the construction and operation of drinking water treatment plants. Their focus on innovation is evident in their engineering solutions, which aim to meet the evolving needs of water management. Recently, Saur secured significant funding, indicating ongoing investment in their capabilities and infrastructure. Their commitment to sustainability and responsible water use is reflected in their operational practices and strategic goals.


4. Ecoimpianti Sud S.R.L.


Ecoimpianti Sud S.R.L., based in Brindisi, Apulia, Italy, has been a player in the water treatment industry since its establishment in 1987. Founded by Ing. Francesco Maria Silvestrini, the company focuses on the design, construction, and management of water purification systems tailored to meet the needs of various sectors, including municipal, industrial, and agricultural. With a team of over 20 professionals, including engineers, chemists, and biologists, Ecoimpianti Sud provides high-level services aimed at achieving technical, economic, and environmental goals for its clients. The company operates more than 130 purification and potabilization plants across Italy, showcasing its capability and commitment to effective water management. Ecoimpianti Sud also partners with recognized entities like Culligan and Techase to enhance its technological offerings, including innovative sludge dehydration systems. Their adherence to international quality and environmental standards, as evidenced by their ISO certifications, further underscores their dedication to excellence in water treatment.


5. Hydrazul

  • Website: hydrazul.com
  • Ownership type: Private
  • Headquarters: Monterrey, Nuevo Leon, Mexico
  • Founded year: 1988
  • Headcount: 11-50
  • LinkedIn: grupo-domos

Hydrazul, based in Monterrey, Nuevo Leon, Mexico, is a private water treatment company founded in 1988. With a workforce of approximately 46 employees, Hydrazul specializes in the design, construction, and operation of water treatment plants tailored for municipalities and industrial clients. The company offers a wide range of services, including wastewater treatment, water purification, and maintenance of treatment facilities. Hydrazul operates plants with a total capacity of 2,200 liters per second, showcasing their ability to handle significant water treatment demands. Their projects span various sectors, including food and beverage, textiles, and municipal water systems, reflecting their adaptability and expertise in addressing specific client needs. Hydrazul is committed to innovative solutions that promote environmental sustainability and compliance with regulatory standards, making them a key player in the water treatment industry.


6. Pureco Ltd.

  • Website: pureco.hu
  • Ownership type: Private
  • Headquarters: Budapest, Budapest, Hungary
  • Employee distribution: Hungary 83%, Ghana 6%, Czech Republic 6%, Other 6%
  • Founded year: 2006
  • Headcount: 11-50
  • LinkedIn: pureco-ltd-

Pureco Ltd., based in Budapest, Hungary, is a private water management company founded in 2006. With a workforce of 36 employees, the company operates in over 20 countries across four continents, focusing on sustainable solutions for rainwater management, drinking water purification, and wastewater treatment. Pureco serves a variety of clients, including municipalities, agricultural businesses, and industrial sectors, providing tailored products and consulting services. Their innovative technologies, such as the PurAID® drinking water purification system and the Septopure® wastewater treatment solution, have gained international recognition. Pureco is also involved in comprehensive water and environmental management projects, overseeing initiatives from the design phase to implementation. Their commitment to addressing water scarcity and pollution issues positions them as a significant player in the water purification industry.


7. National Infra Industries Limited


National Infra Industries Limited, based in New Delhi, India, has been a significant player in the construction and manufacturing sector since its establishment in 1937. Originally founded by Mr. G.S. Anand, the company has evolved over the decades, expanding its operations to include a variety of infrastructure solutions. Notably, they specialize in water treatment systems, which are crucial for ensuring access to clean drinking water. Their product range includes water purification plants, water filtration plants, sewage treatment plants, and reverse osmosis plants. This focus on water treatment highlights their commitment to addressing public utility needs, particularly in the context of clean water and efficient sewage management. The company operates with a professional team of engineers and utilizes modern machinery to deliver quality solutions to their clients.


8. Gajarda

  • Website: gajarda.com
  • Ownership type: Private
  • Headquarters: Viterbo, Lazio, Italy
  • Employee distribution: Italy 100%
  • Founded year: 2007
  • Headcount: 51-200
  • LinkedIn: gajarda-s.r.l.

Gajarda Srl, based in Viterbo, Lazio, Italy, is a private company founded in 2007. With a workforce of around 32 employees, Gajarda focuses on water treatment and pool construction, providing innovative solutions for both domestic and industrial clients. The company specializes in various aspects of water purification, including the treatment of drinking water, wastewater management, and the design and construction of pools. Gajarda is involved in the installation and maintenance of water treatment systems, ensuring clean water and efficient operations for their customers. Their services extend to the construction of desalination plants and the provision of domestic water purifiers, showcasing their capability in the drinking water sector. Gajarda is committed to technological advancement and environmental sustainability, as evidenced by their certifications in quality and environmental management.


9. Sige srl

  • Website: sigesrl.com
  • Ownership type: Private
  • Headquarters: San Sebastiano Al Vesuvio, Campania, Italy
  • Employee distribution: Italy 100%
  • Founded year: 1977
  • Headcount: 51-200
  • LinkedIn: sige-srl

Sige srl, established in 1977, is a water treatment company based in San Sebastiano Al Vesuvio, Campania, Italy. The firm specializes in the design, construction, and management of water treatment facilities, catering to both municipalities and industrial clients. With a dedicated team of engineers and technicians, Sige srl has developed a robust technological foundation over the years. Their services include integrated solutions for water purification, wastewater treatment, and air treatment, ensuring compliance with environmental standards. The company has successfully executed numerous projects, including drinking water purification plants, showcasing their expertise in the field. Sige srl operates exclusively in Italy, emphasizing their commitment to local water management needs and environmental sustainability.


10. TUNIBER Ingénierie & Construction Traitement des eaux


TUNIBER Ingénierie & Construction Traitement des eaux, founded in 2004, is a private company based in Tunisia that specializes in water treatment solutions. The firm provides engineering and construction services for both drinking water treatment and wastewater purification projects. TUNIBER has established itself as a significant player in the water treatment sector, particularly within the Tunisian market, where it has successfully completed numerous purification stations and pumping stations. The company emphasizes sustainable development and the integration of innovative technologies in its operations, which is essential for addressing the growing demands for clean water. TUNIBER is ISO 9001 certified, reflecting its commitment to maintaining high standards in quality management. Their projects often involve advanced techniques such as reverse osmosis and electro dialysis for desalination, showcasing their capability to adapt to modern water treatment challenges.


11. Ingeaguas SAS

  • Website: ingeaguas.co
  • Ownership type: Private
  • Headquarters: Envigado, Antioquia, Colombia
  • Founded year: 1981
  • Headcount: 51-200
  • LinkedIn: ingeaguasco

Ingeaguas SAS, founded in 1981 and based in Envigado, Antioquia, Colombia, is a private company dedicated to water treatment solutions. With a workforce of 51-200 employees, Ingeaguas specializes in the design, construction, and maintenance of systems for both potable and wastewater treatment. They cater to a wide array of clients, including residential, commercial, and industrial sectors. The company emphasizes compliance with environmental regulations and promotes sustainable water management practices. Their extensive product offerings include portable and collective water treatment plants, advanced oxidation systems, and various supplies for water treatment processes. Ingeaguas has established itself as a significant player in the Colombian market, addressing the growing need for effective water purification solutions.


12. Depuración de Aguas del Mediterráneo, S.L.

  • Website: dam-aguas.es
  • Ownership type: Private
  • Headquarters: Paterna, Valencian Community, Spain
  • Employee distribution: Spain 82%, Italy 11%, Colombia 6%
  • Founded year: 1995
  • Headcount: 501-1000
  • LinkedIn: dam-aguas

Depuración de Aguas del Mediterráneo, S.L. (DAM) is a private company based in Paterna, Spain, specializing in water treatment and waste management. Founded in 1995, DAM has built a solid reputation in the industry, managing over 250 water treatment plants. Their core activities include the operation and maintenance of wastewater treatment facilities, as well as the construction of hydraulic works. The company is dedicated to sustainable water management, ensuring compliance with environmental standards. With a workforce of around 80 employees, DAM is committed to innovation, continuously seeking advanced solutions in water treatment and waste management. Their international presence extends to Italy, Colombia, and Panama, reflecting their ambition to be a key player in the Mediterranean region and beyond.


13. WTEC Plants Srl

  • Website: wtecplants.com
  • Ownership type: Private
  • Headquarters: Trani, Apulia, Italy
  • Employee distribution: Italy 100%
  • Founded year: 2012
  • Headcount: 11-50
  • LinkedIn: wtec-plants-srl

WTEC Plants Srl, based in Trani, Apulia, Italy, is a private company founded in 2012. It specializes in the design and construction of both customized and standard water treatment plants. With a team of 11 to 50 employees, WTEC Plants focuses on providing tailored solutions for various sectors, ensuring that their systems meet specific water purification needs. The company emphasizes not only the design and installation of these plants but also offers ongoing technical assistance to guarantee optimal performance. Their portfolio includes projects for notable clients such as Mitsubishi and ENI, showcasing their capability in handling complex water treatment challenges. WTEC Plants is committed to quality, as evidenced by their certifications, including ISO 9001, ISO 14001, and ISO 45001, which reflect their adherence to international standards in water treatment and environmental management.


14. KORGEN Tech Systems

  • Website: korgentech.com
  • Ownership type: Private
  • Headquarters: Chennai, Tamil Nadu, India
  • Employee distribution: India 100%
  • Founded year: 2013
  • Headcount: 51-200
  • LinkedIn: korgen-tech-systems

KORGEN Tech Systems, based in Chennai, Tamil Nadu, India, is a private environmental engineering firm founded in 2013. The company specializes in water treatment, sewage treatment, and solar energy solutions, catering to a wide range of clients including residential, commercial, and industrial sectors. KORGEN's expertise lies in designing and constructing water purification systems, sewage treatment plants, and solar power installations. With over two decades of combined experience in the industry, their team of specialists is adept at evaluating client needs and delivering high-quality, customized solutions. KORGEN also emphasizes after-sales support, ensuring that their systems remain effective and reliable over time. Their product range includes advanced technologies for water purification, making them a relevant player in the drinking water purification sector.


15. Ticsa Grupo EPM

  • Website: ticsa.com.mx
  • Ownership type: Private
  • Headquarters: Cuauhtemoc, Ciudad De México, Mexico
  • Employee distribution: Mexico 75%, Colombia 24%
  • Founded year: 1983
  • Headcount: 201-500
  • LinkedIn: ticsa-grupo-epm

Ticsa Grupo EPM, founded in 1983 and based in Cuauhtemoc, Ciudad De México, is a private company dedicated to water treatment solutions. With a workforce of approximately 388 employees, Ticsa has established itself as a significant player in the water treatment industry, particularly in Mexico and Colombia. The company specializes in the design, construction, operation, and maintenance of various water treatment systems, including drinking water purification plants. They cater to both industrial and municipal clients, providing a range of services that include engineering, consulting, and compliance with environmental standards. Ticsa has successfully designed and constructed over 160 water treatment plants, demonstrating their capability and experience in the field. Their focus on innovative and sustainable technologies further enhances their relevance in the water treatment sector.


16. Deyma La Mancha

  • Website: deymalamancha.es
  • Ownership type: Private
  • Headquarters: Tomelloso, Castile-La Mancha, Spain
  • Employee distribution: Spain 82%, Chile 18%
  • Founded year: 2013
  • Headcount: 51-200
  • LinkedIn: deyma-la-mancha

Deyma La Mancha S.L., founded in 2013 and based in Tomelloso, Spain, is a private company that specializes in water treatment solutions. Their core activities include the design, manufacture, and installation of hydromechanical equipment, particularly for drinking water purification, wastewater treatment, and desalination. Deyma La Mancha has established a strong presence in the water treatment sector, serving clients that range from construction companies to municipalities. They have been involved in various large-scale projects across multiple countries, including notable installations in Morocco, Egypt, and Tunisia. The company is committed to quality and environmental management, as evidenced by their ISO certifications. With a workforce of around 28 employees, they maintain a significant operational footprint in Spain and have expanded their reach to markets in Chile and beyond.


17. Vitaqua - Water Purification & Wastewater Treatment

  • Website: vitaqua.es
  • Ownership type: Private
  • Headquarters: Barcelona, Catalonia, Spain
  • Employee distribution: Spain 100%
  • Founded year: 1981
  • Headcount: 11-50
  • LinkedIn: vitaqua

Vitaqua - Water Purification & Wastewater Treatment, founded in 1981 and based in Barcelona, Spain, is a private company dedicated to the treatment and purification of water. With a workforce of 11 to 50 employees, Vitaqua has established itself as a manufacturer, constructor, and installer of water treatment systems. The company specializes in designing and implementing solutions for both drinking water and wastewater treatment, catering to various sectors such as pharmaceuticals, food processing, and urban infrastructure. Their proprietary technology and engineering capabilities allow them to create customized systems that comply with stringent environmental regulations. Vitaqua has successfully completed over 1,500 installations, showcasing their commitment to quality and innovation in water treatment. They also engage in exporting compact treatment plants, demonstrating their reach beyond the Spanish market.


18. Rook Pijpleidingbouw B.V.


Rook Pijpleidingbouw B.V., based in Sint Jansklooster, Overijssel, Netherlands, is a family-owned company that has been a key player in the water treatment industry since its founding in 1969. With a workforce of 11 to 50 employees, the company specializes in the design, construction, and maintenance of water purification installations. Rook Pijpleidingbouw serves a variety of clients in the water sector, providing tailored solutions for both drinking and industrial water needs. Their unique approach includes managing the entire production process in-house, from engineering to manufacturing components such as pipes and tanks. This capability allows them to execute projects efficiently and with a high degree of customization. The company has built a reputation for reliability and expertise, having completed numerous projects for drinking water companies and other industrial clients. Their commitment to quality is underscored by various certifications, including ISO 9001 and VCA, which reflect their adherence to industry standards and safety protocols.


19. Giovanni Putignano & figli S.r.l


Giovanni Putignano & figli S.r.l. is an environmental engineering and construction firm based in Noci, Apulia, Italy. Founded in 1976, the company specializes in water treatment solutions, particularly in the design, construction, and operation of sewage and drinking water treatment plants. With a workforce of 11 to 50 employees, they have established a solid reputation in the industry. The company has successfully completed over 280 interventions, both in Italy and abroad, demonstrating their extensive experience in the field. Their mission focuses on environmental protection and sustainable development, ensuring that their projects meet high standards of quality and safety. Giovanni Putignano & figli S.r.l. is committed to providing effective solutions for public and private clients, contributing to the safeguarding of water resources and public health.


20. Prudence Engineering Services Pvt LTD


Prudence Engineering Services Pvt LTD, based in Colombo, Sri Lanka, is an engineering services firm that has been active since 2008. The company specializes in water purification, offering a range of services that include drinking water purification and wastewater treatment. With a workforce of 11 to 50 employees, Prudence Engineering has successfully completed over 450 projects, showcasing their capability in delivering effective engineering solutions. They cater to various clients, including businesses and organizations, ensuring compliance with environmental standards. The company is recognized by the Central Environment Authority as a consultant for wastewater purification systems, which adds to their credibility in the field. Their commitment to providing tailored solutions and their extensive experience in the industry highlight their role as a significant player in water purification and management.


21. Awasa

  • Website: awasa.com.mx
  • Ownership type: Private
  • Headquarters: Mexico
  • Employee distribution: Mexico 100%
  • Founded year: 1984
  • Headcount: 51-200
  • LinkedIn: awasa

Awasa, founded in 1984, is a private company based in Guadalajara, Mexico, specializing in water treatment solutions. The firm focuses on both wastewater and potable water treatment, catering to municipalities and industrial clients. Awasa offers a comprehensive range of products and engineering services designed to meet environmental standards and enhance water quality. Their operations include the construction and installation of treatment plants, as well as providing ongoing technical support to ensure optimal performance. The company has successfully completed various projects, such as the construction of treatment plants in Tabasco, Guanajuato, and Veracruz, showcasing their expertise in the field. Awasa is committed to delivering effective solutions for water purification and treatment, making them a significant player in the industry.



Drinking Water Purification Insights: Key Companies


CompanyHeadquarterSizeFoundedOwnership
So.T.Eco. SpaSanta Maria Capua Vetere, Campania, Italy51-2001976Private
Vialterra Infraestructuras S.A.Philippines51-2002000Private
SaurIssy-Les-Moulineaux, Île-De-France, France10001+1933Private Equity
Ecoimpianti Sud S.R.L.Brindisi, Apulia, Italy11-501987Private
HydrazulMonterrey, Nuevo Leon, Mexico11-501988Private
Pureco Ltd.Budapest, Budapest, Hungary11-502006Private
National Infra Industries LimitedNew Delhi, Delhi, India11-501937Private
GajardaViterbo, Lazio, Italy51-2002007Private
Sige srlSan Sebastiano Al Vesuvio, Campania, Italy51-2001977Private
TUNIBER Ingénierie & Construction Traitement des eauxUnited States (USA)201-5002008Private
Ingeaguas SASEnvigado, Antioquia, Colombia51-2001981Private
Depuración de Aguas del Mediterráneo, S.L.Paterna, Valencian Community, Spain501-10001995Private
WTEC Plants SrlTrani, Apulia, Italy11-502012Private
KORGEN Tech SystemsChennai, Tamil Nadu, India51-2002013Private
Ticsa Grupo EPMCuauhtemoc, Ciudad De México, Mexico201-5001983Private
Deyma La ManchaTomelloso, Castile-La Mancha, Spain51-2002013Private
Vitaqua - Water Purification & Wastewater TreatmentBarcelona, Catalonia, Spain11-501981Private
Rook Pijpleidingbouw B.V.Sint Jansklooster, Overijssel, Netherlands11-501969Family Owned
Giovanni Putignano & figli S.r.lNoci, Apulia, Italy11-501976Private
Prudence Engineering Services Pvt LTDColombo, Western, Sri Lanka11-502008Private
AwasaMexico51-2001984Private


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