The desalination industry focuses on transforming seawater into drinkable water, addressing the critical issue of freshwater scarcity worldwide. Companies in this sector range from large-scale corporations to innovative startups, each creating unique technologies and solutions. Players include established firms specializing in integrated water management and emerging players leveraging solar and renewable energy for sustainable desalination. The future points towards increased investment in greener technologies and adaptive solutions that cater not just to urban centers but also to remote communities. As populations grow and climate challenges escalate, the industry's focus on efficiency and sustainability will play a pivotal role in water security.

In this compilation, we highlight 23 notable desalination companies. They vary in size from small teams to large corporate entities, founded between the mid-20th century to recent years. Most are situated in water-scarce regions like the Middle East, Spain, and Israel, where they specialize in innovative water treatment solutions. The bibliography consists of firms deeply entrenched in both municipal and industrial applications, deploying cutting-edge technologies like reverse osmosis and solar desalination methods. Each organization brings unique expertise, striving to provide reliable solutions to pressing water challenges around the globe.

Read on to discover the top desalination companies.

Top 23 Desalination Companies Companies

1. 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, 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. Established in 1965, IDE has built a reputation for its innovative approaches to seawater desalination, wastewater treatment, and operations and maintenance services. The company employs a range of technologies, including reverse osmosis and thermal desalination, to meet the growing demand for fresh water in various sectors. IDE has successfully executed numerous projects globally, such as the Carlsbad and Sorek I desalination plants, showcasing its capability in large-scale water infrastructure development. With a workforce of over 500 employees, IDE operates in multiple countries, including Israel, Chile, India, and the USA, reflecting its international reach and commitment to enhancing water security and sustainability.

2. GS Inima Environment

• Website: inima.com
• Ownership type: Private
• Headquarters: Madrid, Madrid, Spain
• Employee distribution: Spain 48%, Oman 25%, United Arab Emirates 20%, Other 7%
• Founded year: 1955
• Headcount: 1001-5000
• LinkedIn: gsinima

GS Inima Environment, based in Madrid, Spain, is a private company specializing in water treatment and renewable energy solutions. Founded in 1955, the company has developed a robust portfolio in desalination, purification, and wastewater treatment services. They cater to both municipal and industrial clients, providing sustainable solutions to combat water scarcity and environmental challenges. With operations spanning across multiple countries, including significant presences in Oman, the UAE, and Morocco, GS Inima has completed over 200 projects worldwide. Their commitment to innovation is evident in their development of advanced technologies for water treatment, including reverse osmosis desalination. The company has also been recognized for its efforts in sustainability, integrating renewable energy solutions into their projects. GS Inima's extensive experience and ongoing projects, such as the Shuweihat 4 desalination plant in the UAE, highlight their active role in the desalination sector.

3. Poseidon Water LLC

• Website: poseidonwater.com
• Ownership type: Private
• Headquarters: Boston, Massachusetts, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1995
• Headcount: 11-50
• LinkedIn: poseidon-water-llc

Poseidon Water LLC, founded in 1995 and based in Boston, Massachusetts, is a private company that specializes in seawater desalination and water infrastructure projects. The firm is dedicated to providing innovative solutions to local governments and industrial users facing water scarcity challenges. Poseidon Water's operations extend beyond desalination to include water treatment, wastewater treatment, and water recycling, all while emphasizing sustainable practices and environmental responsibility. A significant highlight of their portfolio is the Claude "Bud" Lewis Carlsbad Desalination Plant in California, which has been operational since late 2015 and is recognized as the largest seawater desalination facility in the Western Hemisphere. This plant plays a crucial role in supplying high-quality drinking water to the San Diego region, demonstrating Poseidon Water's capability in managing large-scale projects. The company actively pursues new opportunities in various market regions, including California, Florida, and Texas, and has established a reputation for its project-specific partnerships that optimize risk allocation and enhance project delivery.

4. Biwater

• Website: biwater.com
• Ownership type: Private
• Headquarters: Dorking, England, United Kingdom (UK)
• Employee distribution: United Kingdom (UK) 23%, Morocco 20%, Nicaragua 16%, Other 41%
• Founded year: 1968
• Headcount: 501-1000
• LinkedIn: biwater

Biwater, founded in 1968 and based in Dorking, England, is a private water treatment company that specializes in sustainable solutions for water and wastewater management. With a workforce of approximately 500 to 1,000 employees, Biwater operates globally, having delivered over 25,000 projects across more than 90 countries. The company addresses critical water and sanitation challenges through innovative projects and partnerships, including a focus on desalination, water reuse, and membrane treatment. Biwater's modular treatment plants are designed to be scalable, catering to various needs in water treatment. Their commitment to environmental sustainability is evident in their approach to project finance, operation, and maintenance, ensuring that they engage with local communities and stakeholders throughout their projects. Biwater has received accolades for its work, including the 2021 Global Water Award for Desalination Company of the Year, highlighting its significant contributions to the industry.

5. Water and Environment Technologies Company - WETICO

• Website: wetico.com
• Ownership type: Private
• Headquarters: Riyadh, Riyadh, Saudi Arabia
• Employee distribution: Saudi Arabia 75%, Egypt 14%, Algeria 10%, Other 1%
• Founded year: 1990
• Headcount: 501-1000
• LinkedIn: wetico-water-and-environment-technologies-co-ltd

Water and Environment Technologies Company (WETICO) is a private environmental engineering firm based in Riyadh, Saudi Arabia, established in 1990. The company specializes in integrated solutions for water and wastewater management, with a strong emphasis on desalination. WETICO has built over 1,000 water treatment plants and has been involved in 43 international projects across various sectors, including municipalities and healthcare. Their reverse osmosis plants are recognized for producing high-quality demineralized water, and they are a key supplier of ultra-pure water in the region. WETICO's SWRO plant is particularly notable, as it provides a substantial portion of Jeddah's drinking water. The company is committed to sustainability and safety, adhering to international quality standards and actively engaging in research and development to enhance their technological offerings.

6. Sydney Desalination Plant Pty Limited

• Website: sydneydesal.com.au
• Ownership type: Private
• Headquarters: Kurnell, New South Wales, Australia
• Employee distribution: Australia 100%
• Founded year: 2007
• Headcount: 11-50
• LinkedIn: sydney-desalination-plant

Sydney Desalination Plant Pty Limited, located in Kurnell, New South Wales, Australia, is a private water supply company that operates a state-of-the-art desalination facility. Founded in 2007, the plant has been supplying high-quality drinking water to Sydney since 2010. It plays a crucial role in the city's water management strategy, especially during times of environmental stress such as droughts and floods. The facility is capable of producing up to 91.25 gigalitres of drinking water annually, which accounts for approximately 15% of Sydney's average water needs. The plant is designed to operate flexibly, responding to production requests from Sydney Water. Notably, the plant is powered entirely by renewable energy, reflecting a strong commitment to sustainability. The operations are managed by Veolia Water Australia, ensuring that the facility benefits from global expertise in water management. The plant also emphasizes environmental stewardship, maintaining a conservation area on-site and implementing rigorous marine monitoring programs to minimize ecological impact.

7. Majis Industrial Services S.A.O.C

• Website: majis.om
• Ownership type: Private
• Headquarters: Liwa, Al Batinah North Governorate, Oman
• Employee distribution: Oman 100%
• Founded year: 2006
• Headcount: 11-50
• LinkedIn: majis-industrial-services-saoc-misc

Majis Industrial Services S.A.O.C, established in 2006, is a private company based in Liwa, Oman. It operates as a comprehensive water solutions provider, focusing on sustainable practices in the water treatment industry. Majis specializes in seawater supply, desalination, and wastewater treatment, primarily serving industrial clients in the Sohar Industrial Port Area. The company prides itself on being a fully integrated water solutions platform, addressing the water utility and effluent treatment needs of its clients. With a commitment to operational excellence, Majis has developed a reputation for delivering timely and efficient water solutions. Their services include the supply of cooling water, potable water, and process water, as well as the recycling of industrial and domestic effluent into usable water for irrigation and other purposes. Majis has established strong relationships with over 50 companies in the region, demonstrating their capability and reliability in the water solutions market.

8. Almar Water Solutions

• Website: almarwater.com
• Ownership type: Private
• Headquarters: Madrid, Madrid, Spain
• Employee distribution: Spain 60%, Chile 35%, Saudi Arabia 3%, Other 2%
• Founded year: 2016
• Headcount: 51-200
• LinkedIn: almarwatersolutions

Almar Water Solutions, based in Madrid, Spain, is a private company specializing in sustainable water management solutions. Founded in 2016, it operates globally, providing services that include water production, treatment, and reuse. The company caters to a variety of clients, including water utilities, industrial sectors, and municipalities. Almar Water Solutions has a notable focus on desalination, with over 70 contracts in Egypt alone, serving industrial, mining, and tourism applications. Their operations extend across several regions, including Latin America, the Middle East, and Asia-Pacific, where they aim to improve service levels and reduce water losses through innovative technologies. The company is also involved in project finance development and mergers and acquisitions, which further enhances its capabilities in the water sector. Almar Water Solutions is committed to sustainability, actively seeking to minimize the environmental impact of water production and management.

9. Desolenator

• Website: desolenator.com
• Ownership type: Venture Capital
• Headquarters: Maastricht, Limburg, Netherlands
• Employee distribution: Netherlands 57%, United Arab Emirates 26%, United Kingdom (UK) 9%, Other 9%
• Latest funding: December 2022
• Founded year: 2014
• Headcount: 11-50
• LinkedIn: desolenator

Desolenator is a water technology company based in Maastricht, Netherlands, founded in 2014. The firm focuses on solar thermal desalination solutions, providing sustainable water purification systems to municipalities, communities, and businesses facing water scarcity. Their patented technology, the SP40, is the world's first fully circular solar thermal desalination system, which transforms seawater and brackish water into ultrapure water without the use of harmful chemicals. Desolenator's systems are modular and scalable, capable of producing 40 cubic meters of water per hour, making them suitable for both remote and urban settings. The company has a strong commitment to addressing global water challenges and reducing the environmental impact of traditional desalination methods. With a team of engineers and innovators, Desolenator is actively involved in projects in regions like Dubai and Abu Dhabi, aiming to provide reliable and affordable water solutions while promoting better water stewardship.

10. Ridgewood for Water Desalination

• Website: ridgewoodegypt.com
• Ownership type: Corporate
• Headquarters: Cairo, Cairo Governorate, Egypt
• Employee distribution: Egypt 100%
• Latest funding: October 2020
• Founded year: 1998
• Headcount: 201-500
• LinkedIn: ridgewood-for-water-desalination

Ridgewood for Water Desalination, based in Cairo, Egypt, specializes in sustainable water treatment solutions. Founded in 1998, the company has developed a robust portfolio, operating over 65 desalination plants with capacities ranging from 500 to 20,000 cubic meters. Their services extend across multiple sectors, including hospitality and industry, where they provide reverse osmosis desalination, operation and maintenance of water plants, and wastewater treatment. With a commitment to addressing regional water scarcity, Ridgewood has positioned itself as a key player in the water management sector. The company is vertically integrated, allowing them to oversee every aspect of their projects, from design to maintenance, ensuring high standards and efficiency. In 2020, Ridgewood was acquired by Hassan Allam Utilities and Almar Water Solutions, enhancing their technological capabilities and financial strength to meet growing market demands.

11. 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, England, 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 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®, FilterClear®, and CFIC®, which are designed to improve the efficiency of water treatment processes. Bluewater Bio has been involved in significant projects, such as the North Sitra project in Bahrain, which highlights their capability in addressing urban growth and water scarcity. The company has made substantial contributions to cleaning wastewater and making it available for reuse, showcasing their commitment to tackling the global water crisis.

12. Sidem

• Website: sidem-desalination.com
• Ownership type: Corporate
• Headquarters: Saint-Maurice, Île-De-France, France
• Employee distribution: France 44%, United Arab Emirates 37%, Saudi Arabia 9%, Other 10%
• Latest funding: July 1998
• Founded year: 1970
• Headcount: 201-500
• LinkedIn: sidem_2

Sidem, based in Saint-Maurice, Île-De-France, France, is a water treatment company that specializes in desalination technologies. Established in 1970, Sidem has developed a strong portfolio of solutions, including Multi-Stage Flashing (MSF), Multi-Effect Distillation (MED), and Reverse Osmosis (RO) systems. The company primarily serves municipalities and industries that require efficient water supply solutions, particularly in water-scarce regions. With a workforce of approximately 630 employees, Sidem has a significant presence in the Middle East, particularly in the United Arab Emirates and Saudi Arabia, where they have executed numerous large-scale desalination projects. Their commitment to research and development has allowed them to maintain a technological edge in the industry, and their recent innovations, such as the Barrel, highlight their focus on efficiency and sustainability in water treatment. Sidem operates under the umbrella of Veolia Water Technologies, which enhances their capabilities and market reach.

13. International Desalination & Water Treatment

• Website: idwtgroup.com
• Ownership type: Private
• Headquarters: Egypt
• Employee distribution: Egypt 75%, Oman 25%
• Founded year: 1983
• Headcount: 51-200
• LinkedIn: idwt-group1

International Desalination & Water Treatment (IDWT) is a private company based in Egypt, specializing in water treatment and desalination solutions. Established in 1983, IDWT has built a solid reputation over the years, providing services that include wastewater treatment, desalination, and water filtration. The company caters to a variety of sectors, including municipalities, industrial facilities, and agriculture. IDWT operates through engineering, procurement, and construction services, and also offers rental units for temporary water supply needs. Their innovative approach includes the production of modular, containerized water treatment and desalination units, which are designed for efficiency and reduced operational costs. With a workforce of around 16 employees, IDWT maintains a significant presence in Egypt and Oman, reflecting their commitment to addressing water-related challenges in these regions.

14. Kindasa Water Services

• Website: kindasa.com
• Ownership type: Private
• Headquarters: Jeddah, Makkah, Saudi Arabia
• Employee distribution: Saudi Arabia 100%
• Founded year: 2000
• Headcount: 51-200
• LinkedIn: kindasawaterservices

Kindasa Water Services, based in Jeddah, Saudi Arabia, is a private company specializing in seawater desalination and the distribution of potable water. Founded in 2000, Kindasa has become the first private potable water supply company in the region, serving both industrial sectors and residential complexes. The company operates a desalination plant located at Jeddah Islamic Port, with a production capacity of 65,000 m3/day. Kindasa is committed to maintaining high water quality standards, ensuring compliance with both WHO and SASO regulations. Their services include 24/7 water distribution, and they are actively involved in projects that enhance water supply infrastructure. The company aims to expand its operations through new plant developments and long-term contracts, reflecting its ambition to meet the increasing demand for clean water in Saudi Arabia and beyond.

15. Sychem Group

• Website: sychem.gr
• Ownership type: Private
• Headquarters: Athens, Central Athens Regional Unit, Greece
• Employee distribution: Greece 100%
• Founded year: 2000
• Headcount: 201-500
• LinkedIn: sychem-group

Sychem Group, founded in 2000 and based in Athens, Greece, is an engineering company that specializes in water treatment and renewable energy solutions. With a workforce of around 96 employees, the company has carved out a niche in the water treatment industry, offering services that include desalination, wastewater treatment, and energy-saving systems. Sychem has successfully executed numerous projects, including the construction of desalination units and advanced water processing systems. Their recent projects include the expansion of a desalination facility in Almyros, Greece, which now has a capacity of 5,000 cubic meters per day, and a significant desalination project in Morocco, showcasing their international reach. The company is recognized for its innovative approach to addressing environmental challenges and enhancing operational efficiency in water management.

16. RWL Water

• Website: rwlwater.com
• Ownership type: Corporate
• Headquarters: New York, New York, United States (USA)
• Employee distribution: Peru 60%, Israel 19%, Brazil 11%, Other 11%
• Latest funding: May 2017
• Founded year: 2011
• Headcount: 51-200
• LinkedIn: rwl-water-llc

RWL Water, also known as Fluence Corporation, is a New York-based company founded in 2011. It specializes in decentralized water and wastewater treatment solutions, offering a range of technologies aimed at municipalities and industries. The company focuses on sustainable practices and energy efficiency, providing tailored solutions for water management needs. RWL Water's product offerings include advanced desalination technologies like the NIROFLEX Desalination Building Blocks and NIROBOX™ Smart Packaged Plants, which are designed for quick deployment and operational efficiency. Their global presence is notable, with significant operations in Peru, Israel, and Brazil, reflecting their commitment to addressing water scarcity issues in various regions. RWL Water has been involved in several projects, including a desalination plant for a resort complex in the Bahamas, showcasing their capability in delivering effective water solutions.

17. Algerian Energy Company

• Website: aec.dz
• Ownership type: Private
• Headquarters: Algiers [El Djazaïr], Algiers, Algeria
• Employee distribution: Algeria 99%, Other 1%
• Founded year: 2001
• Headcount: 51-200
• LinkedIn: algerian-energy-company

Algerian Energy Company (AEC), founded in 2001 and based in Algiers, Algeria, is a private firm dedicated to energy and water management, with a strong emphasis on desalination services. The company operates projects that transform seawater into potable water, addressing the significant challenge of water scarcity in Algeria. AEC's clientele primarily includes municipalities and public entities, highlighting its role in ensuring access to clean water for communities. The company is actively involved in various desalination projects, such as the Benisaf seawater desalination plant, and continues to work on new initiatives to enhance water supply in the region. With a workforce of approximately 175 employees, AEC is positioned to make a meaningful impact in the water management sector, particularly in the context of Algeria's growing water needs.

18. Nafasi Water

• Website: nafasiwater.com
• Ownership type: Venture Capital
• Headquarters: Johannesburg, Gauteng, South Africa
• Employee distribution: South Africa 100%
• Latest funding: $6.9M, January 2019
• Founded year: 2003
• Headcount: 201-500
• LinkedIn: nafasi-water

Nafasi Water, founded in 2003 and based in Johannesburg, South Africa, is a water treatment company that specializes in a range of services including sea-water desalination, wastewater treatment, and mine water treatment. With a workforce of approximately 175 employees, the company has established itself as a key player in addressing water scarcity and contamination challenges faced by various industries, particularly mining and municipalities. Nafasi Water employs advanced technologies to deliver tailored solutions, ensuring efficient and reliable water management. Their HiPRO™ product line, recognized for its high recovery rates from complex mine impacted waters, has garnered international accolades, including awards from the South African Institute for Engineers and recognition from the United Nations Framework Convention on Climate Change. The company has also secured significant funding, amounting to over 6.9 million USD, which underscores its growth potential and commitment to innovation in the water treatment sector.

19. Taprogge Gesellschaft mbH

• Website: taprogge.de
• Ownership type: Private
• Headquarters: Wetter, North Rhine-Westphalia, Germany
• Employee distribution: Germany 75%, India 11%, Netherlands 8%, Other 6%
• Founded year: 1953
• Headcount: 201-500
• LinkedIn: taprogge-gmbh

Taprogge Gesellschaft mbH, founded in 1953 and based in Wetter, North Rhine-Westphalia, Germany, is a private clean-tech company with a workforce of approximately 201-500 employees. The company specializes in energy efficiency and water treatment solutions, catering primarily to power plants and industrial clients. Taprogge's offerings include optimizing cooling systems, seawater desalination, and wastewater management. They have developed innovative and environmentally friendly desalination concepts, utilizing proven technologies for filtration and cooling tube cleaning. Their commitment to operational efficiency and environmental sustainability is evident in their extensive portfolio, which includes over 18,000 delivered systems and a global presence with subsidiaries and representatives in multiple countries. Taprogge's focus on reducing wastewater and promoting resource conservation further underscores their relevance in the water treatment and desalination industry.

20. Tam Environmental Services

• Website: tam-es.com
• Ownership type: Private
• Headquarters: Cairo, Cairo Governorate, Egypt
• Employee distribution: Egypt 100%
• Founded year: 2000
• Headcount: 201-500
• LinkedIn: tam-environmental-services

Tam Environmental Services, founded in 2000 and based in Cairo, Egypt, is an engineering and construction company that specializes in seawater desalination. With a workforce of approximately 250 employees, the company has been addressing water scarcity issues through innovative desalination solutions for over two decades. They provide comprehensive engineering, procurement, and construction services to both governmental and private sector clients. In 2016, Tam Environmental Services acquired a 75% stake in Desalia SL, a Spanish water desalination company, enhancing their capacity to deliver desalination equipment and services in the Egyptian market. The company has successfully executed numerous projects, including large-scale desalination plants, demonstrating their expertise in plant design, execution, and operations management.

21. Suido Kiko Middle East

• Website: suikime.com
• Ownership type: Private
• Headquarters: Jeddah, Makkah, Saudi Arabia
• Employee distribution: Saudi Arabia 100%
• Founded year: 2004
• Headcount: 201-500
• LinkedIn: suido-kiko-middle-east

Suido Kiko Middle East (SKME) is an engineering and construction firm based in Jeddah, Saudi Arabia, founded in 2004. The company specializes in water and wastewater treatment solutions, with a particular focus on the construction of desalination plants and sewage treatment systems. As a joint venture between Saudi Brothers Commercial Company Group and Suido Kiko Kaisha of Japan, SKME combines local market knowledge with advanced Japanese technology. The firm has been instrumental in implementing innovative solutions, such as the introduction of Membrane BioReactor (MBR) technology in the region. SKME has undertaken significant projects, including the SOJECO seawater desalination plant, which operates continuously to provide safe water for both industrial and domestic use. Their commitment to sustainable practices and environmental protection has earned them accolades, including the prestigious Global Water Awards. SKME's projects not only address immediate water needs but also contribute to long-term water management strategies in Saudi Arabia.

22. Gefico

• Website: gefico.com
• Ownership type: Family Owned
• Headquarters: Cerceda, A Coruña, Spain
• Employee distribution: Spain 100%
• Founded year: 1979
• Headcount: 11-50
• LinkedIn: gefico

Gefico Enterprise, S.L. is a family-owned water treatment company based in Cerceda, A Coruña, Spain, founded in 1979. With a workforce of 21 employees, Gefico has carved out a niche in the water treatment industry, particularly in desalination. The company specializes in developing and manufacturing solutions that utilize advanced technologies such as reverse osmosis, thermal evaporation, and vapor compression evaporation. Their services cater to various sectors, including maritime, offshore, industrial, and land-based applications, particularly in the hotel and residential sectors. Gefico's commitment to sustainability is evident in their approach to water management, ensuring that they respect and protect the water cycle. They have also engaged in internationalization efforts, supported by European funding initiatives, to expand their market presence globally.

23. Peter Taboada

• Website: petertaboada.com
• Ownership type: Private
• Headquarters: Redondela, Pontevedra, Spain
• Employee distribution: Spain 100%
• Founded year: 1980
• Headcount: 11-50
• LinkedIn: peter-taboada-s-l-

Peter Taboada is a private water treatment company based in Redondela, Pontevedra, Spain, founded in 1980. The company specializes in designing and manufacturing advanced water treatment and desalination systems, with a strong emphasis on reverse osmosis technology. Peter Taboada serves a variety of sectors, including marine, industrial, and residential, ensuring access to clean and safe water. With over four decades of experience, the company has developed a reputation for innovation and sustainability, operating in more than 60 countries worldwide. Their projects range from naval applications to industrial solutions, showcasing their capability to deliver tailored systems that meet specific customer needs. The company is committed to research and development, continuously improving their offerings to adapt to market demands.

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