Managing water well is important for every growing business in the USA. Many factories produce wastewater that needs proper treatment each day. Advanced wastewater solutions in the USA can help protect the environment and reduce business risks.

Strict rules also make wastewater treatment more important. Older treatment plants may struggle to meet current discharge limits. The right treatment partner can help your plant run smoothly and avoid costly fines.

This guide lists ten trusted companies that serve industrial markets across the USA. Each company offers different wastewater treatment systems and services. You can compare their strengths and find the right fit for your needs.

Quick Comparison

 

Company	Specialization	Best For
Oxymo Technology	MBR, MABR, UF, and hollow fiber membranes	Compact and customized wastewater treatment systems
Veolia Water Technologies	MBBR, MBR, clarification, evaporation, and digital water management	Large industrial and municipal wastewater projects
Xylem	Pumps, MBBR, IFAS, SBR, UV, and digital water tools	End-to-end water and wastewater treatment needs
Aquatech International	Desalination, biological treatment, water reuse, and zero liquid discharge	Complex industrial wastewater and water recovery projects
Evoqua Water Technologies	Filtration, separation, disinfection, and mobile water systems	Flexible treatment and rapid deployment needs
Ovivo	Silicon carbide membranes, MBR, ultrafiltration, and packaged treatment systems	Specialized municipal and industrial water treatment
Ecolab (Nalco Water)	Treatment chemicals, wastewater monitoring, and digital optimization	Chemical treatment, process control, and sludge management
Fluence Corporation	MABR, containerized treatment, and water reuse systems	Remote sites and modular wastewater treatment
BioMicrobics	Decentralized treatment, MBR, fixed-film systems, and MBBR	Small communities, commercial sites, and decentralized projects
Brown and Caldwell	Wastewater engineering, process design, testing, and nutrient removal	Large-scale wastewater design and utility projects

1. Oxymo Technology

Key Products & Services: MBR systems, MABR reactors, ultrafiltration membranes, hollow fiber membranes, package STP plants, ZLD, and water reuse systems.

Industries Served: Municipal sewage, textile, food and beverage, pharmaceutical, dairy, chemical, and hospitality.

Company Overview

Oxymo Technology is one of the trusted Companies Offering Advanced Wastewater Solutions in the USA for tough water treatment needs. The company has worked on membrane systems for more than 15 years. Its team serves clients in over 40 countries.

Oxymo is known for reliable products, fair factory prices, and helpful support. The company focuses on MBR and MABR systems. It also makes PVDF, PTFE, and PES hollow fiber membranes in its own plants. These membranes can be used in small and compact wastewater treatment plants. Its systems can treat up to 500 kiloliters of water each day. They are also used in packaged STP and zero liquid discharge projects.

Oxymo has ISO 9001 and ISO 14001 certificates. Its products also meet CE standards and use patented designs. The team can help from system design and setup to staff training. This full support makes Oxymo a good choice for advanced wastewater solutions in the USA.

What Makes Oxymo Technology Stand Out?

Oxymo Technology offers strong membrane skills, reliable systems, and helpful customer service. Its main strengths include the following:

• More than fifteen years of experience in ultrafiltration and membrane bioreactor systems.
• In-house membrane production backed by patents and university research.
• PVDF, PTFE, and PES hollow fiber membranes from one trusted supplier.
• Proven global experience with projects in more than forty countries.
• Factory-direct prices that help control project costs.
• Full project support, from design and setup to training and service.
• ISO- and CE-certified products with strict quality checks.
• Energy-saving membranes built for steady use and a five- to eight-year service life.

2. Veolia Water Technologies

Headquarters: Trevose, Pennsylvania

Key Products: ACTIFLO clarification, AnoxKaldnes MBBR, ZeeWeed MBR, HPD evaporation, Biothane anaerobic digestion, and Hubgrade digital platform.

Industries Served: Food and beverage, metals and mining, power, pharmaceuticals, oil and gas, chemicals, and municipal.

Company Overview

Veolia is one of the world’s oldest and largest water treatment companies. It works in 130 countries and employs about 10,000 people. Years of experience have made it a trusted name in water care. Veolia provides advanced wastewater solutions in the USA for large treatment plants.

ACTIFLO clarification and AnoxKaldnes MBBR systems treat heavy biological loads. HPD evaporators help plants reach zero liquid discharge and reuse more water. The Hubgrade platform uses AI to improve plant results each day.

Veolia holds ISO 9001, 14001, and 45001 certifications for quality and safety. Its digital platform follows ISO 27001 and NIST security guidelines. Nationwide service teams help plants run well through repairs, checks, and audits.

3. Xylem

Headquarters: Washington, D.C.

Key Products: Flygt pumps, BioSphere MBBR and IFAS, OMNIPAC SBR, UV disinfection, Xylem Vue digital platform.

Industries Served: Municipal water and wastewater, food and beverage, power, microelectronics, healthcare, commercial buildings.

Company Overview

Xylem is one of the largest water companies in the industry. The company works in more than 150 countries and has around 22,000 employees. In 2025, Xylem reported about $9 billion in revenue. It offers high-quality wastewater solutions for cities, utilities and industrial sites in the USA.

Its Flygt pumps and BioSphere MBBR systems are used to treat large volumes of wastewater. Xylem also provides the Xylem Vue platform, which provides digital tools for plant monitoring and managing daily work tasks. The company grew its industrial water business further after buying Evoqua in 2023.

Xylem holds several ISO certifications, including ISO 9001, 14001, 45001, and 17025. From plant design to long-term maintenance, the company offers support throughout the project.

4. Aquatech International

Headquarters: Canonsburg, Pennsylvania

Key Products: HERO reverse osmosis, BioMOD biological treatment, FEDI electrodeionization, DesalMOD desalination, ZLD evaporators, and De-Fluoro PFAS destruction.

Industries Served: Energy and chemicals, power, metals and mining, manufacturing, food and beverage, and pharmaceuticals.

Company Overview

Aquatech International began in 1981 and treats hard industrial water problems. The company has completed more than two thousand projects in sixty countries. In 2025, it won the Water Technology Company of the Year award. Aquatech provides advanced wastewater solutions in the USA for heavy industry.

Aquatech focuses on desalination, water reuse, and zero liquid discharge. Its HERO reverse osmosis and BioMOD systems treat complex waste streams. The De-Fluoro process removes PFAS, while PEARL helps recover useful lithium.

Aquatech holds ISO 9001 certification and NSF approvals for drinking water. The company offers remote monitoring, mobile water services, and spare parts. These services support advanced wastewater solutions in the USA for industrial clients.

5. Evoqua Water Technologies

Headquarters: Pittsburgh, Pennsylvania

Key Products: Filtration and separation systems, disinfection equipment, mobile water solutions

Industries Served: Municipal, food and beverage, life sciences, power, and pharmaceutical

Company Overview

Evoqua Water Technologies has been working in water treatment for more than 100 years. The company serves around 38,000 customers and supports over 200,000 water systems. Evoqua was acquired by Xylem in 2023.

Evoqua offers a broad range of water and wastewater systems. Its CoMag system uses magnets to help remove solids from water, while the Ostara Pearl system helps recover phosphorus from wastewater. The company also operates one of the largest mobile water fleets in the USA, which can provide treatment support when plants need it quickly.

It also offers 24/7 support and mobile deionization units to help keep critical plants running during outages. With its long experience and wide range of treatment options, Evoqua remains a trusted name in advanced wastewater treatment in the USA. 

6. Ovivo

Headquarters: Round Rock, Texas

Key Products: Silicon carbide MBR systems, ecoBLOX and SiCBLOX, ultraBLOX ultrafiltration, clarifiers, and FilterBoxx containerized plants.

Industries Served: Municipal, oil and gas, power, petrochemicals, pulp and paper, food and beverage, mining, and electronics.

Company Overview

Ovivo has more than 150 years of experience in water treatment. The company has approximately 700 experts across global markets. SKion Water owns Ovivo, which grew from several trusted treatment brands.

Ovivo has led the North American membrane bioreactor market for over 20 years. Its silicon carbide membranes offer high flow and long service life. The company also builds clarifiers, FilterBoxx plants, and sludge dewatering systems.

Ovivo is ISO 9001 certified, as confirmed by an LRQA audit. It provides rental options, lease-to-own solutions and 24-hour service. Ovivo’s services position it well for advanced wastewater solutions in the USA.

7. Ecolab (Nalco Water)

Headquarters: St. Paul, Minnesota

Key Products: 3D TRASAR effluent monitoring, NALMET heavy metal removal, ULTIMER and CORE SHELL polymers, and the ECOLAB3D digital platform.

Industries Served: Manufacturing, food and beverage, power, chemicals, mining, pulp and paper, automotive, and data centers.

Company Overview

Nalco Water, an Ecolab company, began in 1928. Its Global Water team serves 100,000 customer sites around the world. Ecolab ranks among the Fortune 500 and reports $15 billion in sales. Nalco Water provides advanced wastewater solutions in the USA for many industries.

3D TRASAR checks wastewater in real time and helps prevent rule violations. NALMET removes heavy metals, while ULTIMER polymers support better sludge removal. ECOLAB3D turns system data into clear insights for daily plant control.

Ecolab holds ISO 9001 certification and a Platinum EcoVadis sustainability rating. Its large service team provides on-site help and remote plant monitoring. These strengths make Ecolab a strong choice for advanced wastewater solutions in the USA.

8. Fluence Corporation

Headquarters: Plymouth, Minnesota

Key Products: Aspiral MABR, NIROBOX containerized treatment, SUBRE submerged MABR, Tipton Series, and EcoBox water reuse.

Industries Served: Municipal, commercial, food and beverage, mining, power, high-tech manufacturing, oil and gas.

Company Overview

Fluence Corporation provides local water and wastewater treatment systems worldwide. The ASX-listed company works in more than seventy countries. It has installed over two hundred MABR systems so far. Fluence offers advanced wastewater solutions in the USA for remote sites.

Aspiral MABR systems can cut aeration energy by up to ninety percent. NIROBOX plants need less space than many other treatment systems. SUBRE retrofits help older plants save energy and treat more water.

Fluence meets EPA discharge rules and California Title 22 reuse standards. Its systems support advanced wastewater solutions in the USA for remote sites. The company holds ISO 9001 certification and offers flexible payment plans.

9. BioMicrobics

Headquarters: Lenexa, Kansas

Key Products: FAST fixed activated sludge treatment, BioBarrier MBR, SeptiTech STAAR filters, RollsAIR MBBR, and BioSTORM stormwater systems.

Industries Served: Residential, commercial, small municipalities, food and beverage, manufacturing, marine.

Company Overview

BioMicrobics has built decentralized treatment systems since 1996. The Kansas-based company serves homes, businesses, and small cities. Its FAST technology supports many community and industrial treatment needs.

The FAST fixed-film process supports a wide range of systems. BioBarrier membrane bioreactors use ultrafiltration to support water reuse. SeptiTech filters and Rolls AIR reactors help remove nitrogen and treat strong wastewater.

BioMicrobics products meet NSF 40, 245, and 350 standards. The company also has EPA verification and EN 12566-3 approval. Its global distributor network helps with installation and long-term service.

10. Brown and Caldwell

Headquarters: Walnut Creek, California

Key Products: BC process intensification, treatability testing laboratory, wastewater process design, design-build delivery, nutrient removal.

Industries Served: Federal, state, and municipal utilities; oil and gas; food and beverage; power; chemicals; and data centers.

Company Overview

Brown and Caldwell is the largest US firm focused only on water. Founded in 1947, it has remained employee-owned since 1962. The company has about two thousand staff in fifty-two offices. It helps utilities build advanced wastewater systems across the USA.

The firm has designed more than 350 wastewater treatment plants. Its BC suite helps plants use less energy and work better. An in-house lab tests each plan before full design begins.

Brown and Caldwell has won several National Safety Council safety awards. Its experience helps utilities improve treatment and meet water rules. Major projects include DC Water Blue Plains and Sacramento EchoWater.

Conclusion

Water shortages and strict discharge rules create new challenges for U.S. manufacturers. PFAS rules and nutrient limits also push many plants to upgrade old treatment systems. At the same time, old infrastructure can raise water and operating costs. This makes advanced wastewater solutions in the USA more important than ever.

The right treatment partner can help cut costs, meet discharge rules, and keep plants running well. A good system can also help reduce water use and support reuse where needed.

Oxymo Technology provides advanced wastewater solutions in the USA with proven MBR and MABR systems. We offer compact treatment systems, factory-direct prices, certified membranes, and full project support. Contact Oxymo Technology today to find the right wastewater treatment system for your facility.

Email: oxymo@oxymembrane.com

Contact No.: +86 130 0635 3124

FAQs

1. How can Oxymo Technology help treat wastewater?

Oxymo Technology provides systems that help treat wastewater and make water reuse possible. Its product range includes MBR, UF, MABR, and membrane distillation systems. Depending on the project, these systems can help remove waste and improve water quality.

2. What methods are used to treat wastewater?

Wastewater can be treated in different ways. Some common methods include MBR, UF, RO, biological treatment, and advanced oxidation. The best option usually depends on what is in the wastewater and how clean the water needs to be.

3. Which industries need advanced wastewater treatment?

Advanced treatment is used across many industries. Food processing, pharmaceuticals, power plants, mining, and manufacturing are common examples. Cities and towns also use these systems. In some cases, one treatment method is not enough, so a mix of systems may be used.

4. What should buyers check before choosing a wastewater treatment company?

It is important that buyers know what they require for their treatment. Think about the amount of water, the quality you need, and your discharge needs. It is also important to consider the long-term support, maintenance and running costs the company offers.