Choosing the right wastewater treatment partner can make or break a project. Membrane bioreactor technology has come to the forefront for municipal water treatment plants, industrial water treatment systems, and commercial buildings that demand compact, high-efficiency water treatment systems. This is especially critical if you’re searching for the best MBR membrane firms in the USA. The demand for membrane bioreactor systems continues to rise year after year. Engineers and procurement teams are drawn to MBR technology by the need to deal with aging infrastructure, more stringent discharge requirements, and increasing water scarcity issues. Unlike conventional treatment technologies, MBR systems incorporate biological treatment and membrane filtration to create a cleaner effluent in a smaller footprint.

This guide will help you understand the top 10 MBR membrane companies in the USA that buyers are choosing today. You’ll learn what makes a reliable membrane bioreactor supplier, explore ten reputable companies serving the U.S. market, and gain valuable insights to help you choose the best supplier for your next project.

1. OXYMO Technology

Website URL: https://oxymotec.com

Email: oxymo@oxymembrane.com

Contact No.: +86 130 0635 3124

Company Overview

OXYMO Technology has built its reputation as one of the best MBR membrane companies in the USA by focusing on one thing: reliable membrane performance under real-world operating conditions. Its expertise is on the research, development, and manufacture of ultrafiltration and membrane bioreactor technology, having delivered hundreds of water treatment projects across more than 40 countries.

The research partnership approach is what sets OXYMO apart from so many other competitors. The company has close collaboration with universities and scientific research institutions and has accomplished the following technological advances and obtained invention patents related to high-performance membrane products such as MABR, flat sheet MBR, ultrafiltration, and membrane distillation. This research-driven process does not simply seek to provide products off the shelf; rather, it constantly strives to create new and improved materials due to ongoing R&D.

Production is carried out with the ISO 9001 and ISO 14001 standards; production and quality management are performed in accordance with internationally recognized standards. Furthermore, OXYMO’s membrane products are CE certified, which is essential for procurement teams with projects that require official documentation of compliance.

Key Products and Services

OXYMO’s product lineup covers a wide range of membrane bioreactor applications:

• Hollow fiber MBR membranes built with embedded-reinforced PVDF, PVDF, alloy-PVC, PAN, and PS/PES materials for different filtration precision needs.
• Flat sheet MBR membranes designed for stable performance under variable loading conditions.
• MABR (Membrane Aerated Biofilm Reactor) systems for energy-efficient biological treatment.
• Ultrafiltration (UF) membrane systems, such as gravity UF series.
• Membrane distillation technology for advanced separation applications.
• Complete package sewage treatment plants, covering design, manufacturing, installation, and commissioning.

Industries Served

OXYMO membrane bioreactor systems are applied in municipal and industrial wastewater treatment applications such as municipal and domestic sewage plant waste, leachate from landfills, laundry and dyeing wastewater, papermaking wastewater, food and slaughterhouse wastewater, oilfield wastewater, pharmaceutical wastewater, dairy processing wastewater, and chemical industry effluent.

What Makes OXYMO Technology Stand Out?

There are several reasons why OXYMO is different from other membrane bioreactor companies:

• Continuous R&D to develop patented membrane formulations that are not licensed or generic materials.
• A variety of material options allows engineers to choose the most appropriate membrane chemistry for the wastewater element.
• Work experience in international projects, with over 40 countries and multiple industrial sectors.
• Dual certification ISO 9001 and ISO 14001, continuous quality, and environmental management.
• Comprehensive service from design through installation, commissioning, and post-installation.
• Energy-efficient system design, shown by customer feedback to reduce operating costs, following the transition from previous treatment methods.
• Stable effluent quality even under variable influent loads, which minimizes the requirement for daily plant effluent samples.
• Technical support and assistance for new installations and upgrades of existing ETP / STP plants.

OXYMO’s patent technology, worldwide manufacturing certification, and project experience make it an ideal solution for procurement teams and engineers in the USA for new construction projects or system upgrades.

2. Veolia Water Technologies & Solutions

Headquarters: Paris, France (with major US operations)

Key Products: MBR systems, MEMPULSE technology, ultrafiltration

Industries Served: Municipal water, industrial wastewater, power, food and beverage

Veolia Water Technologies & Solutions is one of the world’s largest water treatment groups, with a significant presence in the US serving municipal water authorities and industrial clients in a variety of sectors. The company brings decades of experience solving large-scale water treatment challenges throughout the country. It is widely known for its MEMPULSE MBR technology, which uses air scour to control fouling and reduce maintenance frequency. Veolia provides global engineering and service solutions, helping large municipalities and complex industrial wastewater applications that demand proven and reliable treatment performance.

3. DuPont Water Solutions

Headquarters: Wilmington, Delaware, USA

Key Products: IntegraPac MBR systems, ultrafiltration modules

Industries Served: Municipal utilities, commercial developments, industrial facilities

DuPont Water Solutions draws on the parent company’s deep polymer chemistry background to manufacture durable, consistent membrane products built for demanding water treatment applications. This materials science foundation supports sustained filtration performance across a wide range of water chemistries and operating conditions. The company’s MBR systems are commonly used in commercial and municipal decentralized treatment systems across the United States. With a vast distribution and technical support network, DuPont makes it easy for engineers around the country to get design help and a dependable supply of membranes. 

4. Koch Membrane Systems

Headquarters: Wilmington, Massachusetts, USA

Key Products: PURON MBR modules, ultrafiltration systems

Industries Served: Municipal wastewater, industrial process water, food and beverage

Koch Membrane Systems is best known for its PURON hollow fiber MBR technology, which features a submerged, reinforced fiber design designed to resist breakage during repeated cleaning cycles. This durability has made it a common selection for engineers that are required to work with heavy municipal loads. Koch has a long history in membrane separation and serves municipal and industrial customers throughout the country. The engineering teams collaborate with consulting engineers on designs, a benefit when working on complex retrofit and upgrade projects.

5. Kubota Membrane USA

Headquarters: Colorado Springs, Colorado, USA (US subsidiary of Kubota Corporation, Japan)

Key Products: Flat sheet MBR membranes

Industries Served: Municipal wastewater, decentralized treatment systems

Kubota Membrane USA pioneered flat-sheet MBR membrane technology, one of the earliest membrane configurations still widely used in today’s wastewater treatment industry. This early leadership is still influencing the industry’s engineering of flat sheet systems. The flat sheet is appreciated for its ability to withstand fiber breakage and a relatively easy maintenance profile. Kubota has a long history of supplying municipal-scale projects and continues to serve customers throughout the United States via its regional network.

6. Toray Membrane USA

Headquarters: Poway, California, USA (US subsidiary of Toray Industries, Japan)

Key Products: Hollow fiber MBR membranes, reverse osmosis membranes

Industries Served: Municipal water, industrial wastewater, seawater desalination

Toray Membrane USA leverages its parent company’s materials research expertise across a wide range of membrane technologies, not just MBR. This portfolio diversity strengthens the company’s ability to engineer solutions for varied water treatment challenges. This range enables Toray to provide combined treatment trains, such as MBR followed by reverse osmosis for water reuse applications. The company has a strong California presence and steadily expanding operations in other regions of the United States. 

7. Kovalus Separation Solutions

Headquarters: Wilmington, Delaware, USA

Key Products: MBR membranes, ultrafiltration and nanofiltration systems

Industries Served: Municipal, industrial, and specialty process water treatment

Kovalus Separation Solutions builds on the engineering heritage of renowned membrane manufacturers, adding new product development to those capabilities to deliver solutions for water and wastewater treatment across a wide range of operating environments. The company provides a variety of membranes for different configurations that are appropriate for a variety of municipal and industrial uses, including specialty separation processes. Kovalus also provides technical documentation and pilot testing services for technical engineering firms on complex projects.

8. Newterra

Headquarters: Loudon, Tennessee, USA

Key Products: MBR packaged systems, modular water treatment units

Industries Served: Remote communities, industrial sites, commercial developments

Newterra focuses on packaged water treatment systems and modular systems, such as packaged MBR systems for space- and infrastructure-restricted locations. This modular philosophy influences many aspects of the company’s product engineering and manufacturing. Industrial clients and remote project sites looking for containerized or skid-mounted treatment systems will appreciate the modular nature of the company’s systems. Newterra’s manufacturing process focuses on fast deployment and easy installation, in contrast to traditional built-in-place treatment plants.

9. Envirogen Technologies

Headquarters: The Woodlands, Texas, USA

Key Products: MBR systems, biological treatment, and ion exchange technology.

Industries Served: Oil and gas, industrial manufacturing, municipal utilities

Envirogen Technologies provides industrial customers with solutions based on membrane bioreactor technology integrated with other technologies such as biological treatment and ion exchange. The multi-layered system can solve complex wastewater challenges that are typically difficult for one-technology systems to address. The company’s engineering approach is shaped by its focus on industrial markets, including oil and gas, along with its experience handling variable and complex wastewater streams. Envirogen also offers equipment for hire and emergency treatment for immediate compliance requirements.

10. bioprocessH2O

Headquarters: Lawrence, Massachusetts, USA

Key Products: MBR systems, anaerobic treatment, water reuse solutions

Industries Served: Food and beverage, pharmaceutical, industrial manufacturing

bioprocessH₂O specializes in industrial wastewater treatment and water reuse, frequently combining MBR technology with anaerobic digestion to minimize sludge production and generate usable energy from waste streams.The company collaborates closely with food and beverage and pharmaceutical manufacturers that must meet strict discharge standards while managing costs. It uses a design-build process, providing continuous operational support following system commissioning.

How to Choose the Right MBR Membrane Manufacturer for Your Project

• Manufacturing experience: Look for a track record spanning multiple industries and project sizes. Experience minimizes design mistakes when commissioning.
• Certifications: ISO 9001 and ISO 14001 certifications signify regular quality and environmental management practices across the production.
• Product quality: Ask for material specifications and third-party test data before committing to a membrane supplier.
• Customization: Wastewater composition varies widely, so the manufacturer should offer flexibility in membrane material and system configuration.
• Production capacity: Ensure the supplier has the capacity to complete your project on schedule without sacrificing membrane quality or lead time.
• MOQ (Minimum Order Quantity): For smaller projects, choose suppliers willing to accommodate lower order quantities without excessive price markups.
• Lead time: Delays in membrane delivery can stall entire construction schedules, so confirm realistic timelines upfront.
• Export expertise: For export projects, a supplier experienced in international trade and documentation can help avoid delays and compliance issues.
• Technical support: Select a manufacturer that provides design help as well as product sales.
• Pricing: Do not just consider upfront cost; consider total cost of ownership, such as membrane replacement cycles.
• Warranty: A clear warranty policy can be an indicator of confidence in the durability of the membrane and the quality of the manufacture.
• Communication: How a supplier communicates during the quotation and design stages is often a good indicator of the working relationship to come.
• After-sales service: Technical support and spare parts availability are more important after the system is in operation.

Conclusion

Selecting from the top MBR membrane companies in the USA requires more than comparing price sheets. Each of the 10 companies featured here brings its own strengths — from large-scale municipal engineering experience to specialized industrial process expertise — giving buyers options based on project size and budget. While comparing MBR membrane manufacturers in the USA, make sure you also consider certified manufacturing processes, project experience, and technical support. Your chosen MBR supplier should offer long-term support and reliability, whether your project requires hollow fiber membranes, flat sheet membranes, or a combination of both. For purchasers who prefer to deal with a company with proven project experience around the world and patented membrane technology, OXYMO Technology represents one of the top membrane manufacturers profiled here. With certified manufacturing and full-service support, it’s certainly worth considering it for your next wastewater treatment project.

Frequently Asked Questions

Why is OXYMO Technology one of the best MBR membrane companies in the USA?

OXYMO Technology incorporates patented membrane formulations along with ISO-certified manufacturing and project experience in over 40 countries. This experience, combined with full-service technical support, makes it a reliable option for buyers of MBR membranes in the USA to consider.

What is the difference between hollow fiber and flat sheet MBR membranes?

Hollow fiber MBR membranes have a higher packing density and are widely used in compact installations, while flat sheet MBR membranes are sometimes preferred as they are easier to clean and less susceptible to fiber breakage.

How do I choose the best MBR membrane supplier for my wastewater treatment project?

Look at certifications, production capacity, customization, and after-sales service as well as price. Experience in project work from a supplier decreases operational risk in the long term.

What industries commonly use membrane bioreactor systems?

Membrane bioreactor systems are used in municipal wastewater plants, food and beverage processing, pharmaceutical processing, oil and gas, and industrial wastewater plants where discharge requirements are strict.