Top 10 Companies in the Global Seawater Reverse Osmosis (SWRO) Membranes Industry (2025): Market Leaders Powering Water Security

In Business Insights
October 29, 2025


Report Overview

The global Seawater Reverse Osmosis (SWRO) Membranes market was valued at USD 1.98 Billion in 2024 and is projected to reach USD 2.76 Billion by 2030, growing at a Compound Annual Growth Rate (CAGR) of 5.7% during the forecast period (2024–2030). This sustained expansion is primarily driven by the increasing global water scarcity, rapid industrialization in coastal regions, and the accelerating adoption of advanced desalination technologies across municipal and industrial water supply sectors.

As climate change intensifies and freshwater resources become increasingly strained, the global spotlight is falling on desalination as a critical solution. At the heart of every modern SWRO plant are the high-performance membranes that make the process viable. This blog profiles the Top 10 Companies in the Seawater Reverse Osmosis (SWRO) Membranes Industry—a mix of chemical conglomerates, specialty material innovators, and water technology pioneers who are shaping the future of sustainable water production.


🔟 1. Toray Industries, Inc.

Headquarters: Tokyo, Japan
Key Offering: TORAYFIL™ SWRO membrane elements

Toray Industries is a global leader in advanced membrane technology, holding a significant market share in the SWRO membranes segment. Its high-rejection, low-energy membranes are deployed in some of the world’s largest desalination facilities, including the Ras Al-Khair plant in Saudi Arabia and Sorek in Israel. The company invests heavily in R&D for next-generation materials that enhance fouling resistance and improve operational efficiency.

Technology Innovation Initiatives:

  • Development of ultra-low energy membranes

  • Strategic partnerships with global EPC contractors

  • Expanding production capacity to meet rising global demand

Download FREE Sample Report:
Global Seawater Reverse Osmosis (SWRO) Membranes Market – View in Detailed Research Report


9️⃣ 2. DuPont Water Solutions (now part of DuPont)

Headquarters: Wilmington, Delaware, USA
Key Offering: FilmTec™ SW30 elements

DuPont Water Solutions, historically a division of the former DowDuPont, is renowned for its FilmTec™ reverse osmosis membranes. These products set industry benchmarks for salt rejection and flux performance, making them a preferred choice for challenging seawater conditions and high-recovery applications.

Technology Innovation Initiatives:

  • Pioneering research in membrane antifouling coatings

  • Focus on improving membrane lifespan and chemical tolerance


8️⃣ 3. Nitto Denko Corporation / Hydranautics

Headquarters: Oceanside, California, USA
Key Offering: SWC, ESPA, and LFC membrane series

Operating through its Hydranautics subsidiary, Nitto Denko is a dominant force in the SWRO membrane market. The company’s products are known for their robust construction and reliable performance in large-scale municipal and industrial desalination projects worldwide.

Technology Innovation Initiatives:

  • Launch of iLEC™ interconnector for simplified installation

  • Continuous improvement in membrane element energy efficiency


7️⃣ 4. LG Water Solutions

Headquarters: Seoul, South Korea
Key Offering: LG Chem NanoH2O SWRO membranes

LG Water Solutions, building on the technology of the acquired NanoH2O, offers innovative SWRO membranes incorporating nanotechnology. Their products deliver significantly higher permeability without compromising salt rejection, leading to substantial energy savings in desalination operations.

Technology Innovation Initiatives:

  • Investment in graphene and carbon nanotube membrane technologies

  • Expanding global sales and technical support network

Download FREE Sample Report:
Global Seawater Reverse Osmosis (SWRO) Membranes Market – View in Detailed Research Report


6️⃣ 5. Koch Separation Solutions

Headquarters: Wilmington, Massachusetts, USA
Key Offering: Fluid Systems®, MegaMagnum® SWRO elements

Koch Separation Solutions is a prominent supplier of high-performance SWRO membranes under its Fluid Systems brand. The company focuses on providing customized membrane solutions for specific water chemistries and operating conditions.

Technology Innovation Initiatives:

  • Advanced membrane manufacturing capabilities

  • Strong emphasis on industrial wastewater treatment and zero liquid discharge applications


5️⃣ 6. Toyobo Co., Ltd.

Headquarters: Osaka, Japan
Key Offering: HOLLOSEP® hollow fiber membranes

Toyobo is a key supplier of hollow fiber RO membrane modules, which offer advantages in certain desalination applications, including compact footprint and high packing density.

Technology Innovation Initiatives:

  • Specialization in hollow fiber technology for seawater desalination

  • Focus on developing chlorine-tolerant membranes for challenging feed waters


4️⃣ 7. Pentair plc

Headquarters: London, United Kingdom
Key Offering: X-Flow seawater membranes

Pentair offers SWRO membranes through its X-Flow subsidiary, providing robust solutions for large-scale desalination plants, particularly in the Middle East and North Africa region.

Technology Innovation Initiatives:

  • Innovation in membrane chemistry for biological fouling resistance

  • Growing portfolio for brackish water and seawater applications


3️⃣ 8. LANXESS AG

Headquarters: Cologne, Germany
Key Offering: Reverse osmosis membrane elements via its Sybron Chemicals division

LANXESS offers a comprehensive range of specialty chemicals and membrane products for water treatment, including solutions that complement SWRO systems.

Technology Innovation Initiatives:

  • Focus on integrated solutions combining membranes with pretreatment chemicals

  • Strategic focus on sustainability and environmental compatibility of membrane products


2️⃣ 9. Veolia Water Technologies

Headquarters: Paris, France
Key Offering: Membrane products and comprehensive desalination plant solutions

Veolia is a global environmental services company with a strong presence in the water treatment sector. It offers SWRO membranes as part of its broader technology portfolio for seawater desalination projects.

Technology Innovation Initiatives:

  • Development of hybrid membrane systems for optimized performance

  • Implementation of digital solutions for membrane performance monitoring and predictive maintenance


1️⃣ 10. Suez Water Technologies & Solutions

Headquarters: Paris, France
Key Offering: Reverse osmosis and nanofiltration membrane elements

Suez (now part of Veolia) has been a major provider of SWRO membranes and integrated desalination solutions, with expertise in large-scale project execution and operation.

Technology Innovation Initiatives:

  • Emphasis on circular economy approaches in membrane manufacturing and recycling

Get Full Report Here:
Global Seawater Reverse Osmosis (SWRO) Membranes Market – View in Detailed Research Report


🌍 Outlook: The Future of SWRO Membranes is Smarter and More Efficient

The seawater reverse osmosis membranes market is experiencing transformative growth. While traditional thin-film composite membranes still dominate in volume, the industry is investing heavily in next-generation materials, digital integration, and sustainable manufacturing practices that are redefining the capabilities of desalination technology.

📈 Key Trends Shaping the Market:

  • Development of low-energy membranes with higher permeability

  • Integration of IoT and AI for smart membrane monitoring and maintenance

  • Growing demand for containerized and modular SWRO systems

  • Expansion of SWRO capacity in water-stressed regions globally

Get Full Report Here:
Global Seawater Reverse Osmosis (SWRO) Membranes Market – View in Detailed Research Report

The companies listed above are not only supplying critical technology—they’re driving the water security transformation for coastal communities worldwide.