10 USA Companies Leading in Water Recycling Innovations Today

As climate change and population growth strain the world’s freshwater resources, water recycling has emerged as a critical solution. In the United States, several innovative companies are stepping up to transform wastewater into reusable resources, helping industries, municipalities, and agriculture sectors reduce water waste and secure a sustainable future. 

These companies leverage cutting-edge technologies—from advanced membrane filtration and AI-powered monitoring to decentralized treatment systems—to lead the charge in water stewardship.

According to the U.S. Environmental Protection Agency [EPA], the U.S. recycles less than 10% of its wastewater, even though up to 95% of this water could be reused safely with current technology. With water scarcity rising—especially in the western states—recycling innovations are more vital than ever. 

Below, we explore 10 USA companies leading in water recycling innovations. Each company has contributed uniquely to the landscape with technologies, projects, or public-private partnerships that prioritize water sustainability.

The Future of Plumbing: 10 USA Companies Leading in Water Recycling Innovations

As water scarcity and climate change continue to challenge global resources, innovation in water recycling has become a top priority. Across the United States, forward-thinking companies are transforming how we treat, reuse, and conserve water—both in urban infrastructure and remote communities. 

From AI-powered water reuse systems to solar-driven, off-grid purification technologies, these pioneers are setting the gold standard in sustainability and smart plumbing solutions. Below, we explore 10 standout companies revolutionizing the future of water.

1. Xylem Inc.

Headquarters: Washington, D.C.

Xylem is a global leader in water technology, delivering innovative solutions across the full water cycle. Their focus spans water collection, treatment, monitoring, and reuse. The company integrates smart infrastructure, IoT analytics, and energy-efficient systems into every project. With sustainability at the core of their mission, Xylem has emerged as a go-to partner for municipalities and industries. Their decentralized water treatment systems allow scalable recycling even in remote or urban areas.

Key Innovations and Applications:

• Smart water platforms [e.g., View™] powered by real-time data analytics
• Sanitaire® biological treatment systems for nutrient removal
• Decentralized reuse plants designed for rapid deployment in urban and remote areas

Impact Highlights:

• Operating in 150+ countries with scalable water reuse systems
• Partnered with the City of Houston to reduce water loss by 30%

Case Example: In San Diego, Xylem helped implement a wastewater reuse system that saves the city 15 million gallons of potable water daily through advanced oxidation and filtration.

2. Ecolab [Nalco Water Division]

Headquarters: St. Paul, Minnesota

Ecolab’s Nalco Water division provides advanced solutions for industrial water recycling and reuse. The company supports sectors like manufacturing, food processing, and healthcare by minimizing water consumption and increasing operational efficiency. Its proprietary digital platforms and chemical treatments help businesses meet sustainability targets. Nalco Water has become a key player in supporting global corporations in achieving net-zero water goals. Its innovation-first mindset ensures adaptability in any water-intensive environment.

Key Innovations and Applications:

• 3D TRASAR™ Technology for intelligent water management and early detection of issues
• Water risk monetization tools that quantify and forecast water-related risks

Impact Highlights:

• Saved 300+ billion gallons of water globally in 2023
• Helped PepsiCo achieve its water positivity goals ahead of schedule

Case Example: In Mexico, Nalco Water partnered with a major beverage plant to reuse over 90% of its process water using advanced monitoring and purification.

3. Cambrian Innovation

Headquarters: Watertown, Massachusetts

Cambrian Innovation combines biotechnology and electrochemistry to enable onsite wastewater reuse and renewable energy production. They focus on high-strength wastewater, especially from breweries and biotech firms. Cambrian’s modular systems offer both cost savings and environmental benefits. Their EcoVolt® line purifies water while capturing biogas, turning waste into a resource. Their client portfolio continues to grow with sustainability-focused brands across the U.S.

Key Innovations and Applications:

• EcoVolt® Reactor uses electrically active microbes to treat wastewater
• EcoVolt® MBR [Membrane Bioreactor] combines energy production and purification

Impact Highlights:

• Reduced brewery water use by over 40% across deployments
• Generated renewable energy from wastewater for reuse in operations

Case Example: Lagunitas Brewing Company installed EcoVolt® to reuse over 25,000 gallons of water daily and reduce operating costs by 35%.

4. Aqua-Aerobic Systems, Inc.

Headquarters: Loves Park, Illinois

Aqua-Aerobic Systems specializes in adaptive treatment technologies for municipal and industrial water reuse. Their expertise spans aerobic biological treatment, filtration, and nutrient removal. Their customizable systems serve water reuse needs of all sizes and climates. Aqua-Aerobic’s modular design approach helps reduce installation time and footprint. Their technologies are recognized globally for improving efficiency in wastewater management.

Key Innovations and Applications:

• AquaNereda® Aerobic Granular Sludge system for compact, energy-efficient treatment
• AquaDisk® cloth media filters for tertiary reuse applications

Impact Highlights:

• Over 1,000 installations globally
• 30% reduction in treatment plant footprint

Case Example: A Texas city reused over 70% of treated wastewater in parks and landscaping using AquaNereda®, saving millions in freshwater costs.

5. Pure Water Southern California [Public-Private Partnership]

Based in: Los Angeles, California

Pure Water Southern California is a large-scale regional effort to recycle treated wastewater into high-quality drinking water. It combines government leadership and cutting-edge technologies from private sector partners. This project sets a new national benchmark for potable reuse. With massive production capacity, it will reduce reliance on imported water. It’s also being used as a learning model for similar projects nationwide.

Key Innovations and Applications:

• Multi-barrier advanced treatment including RO, UV, and oxidation
• Uses AI to manage treatment loads based on real-time conditions

Impact Highlights:

• Will supply enough purified water for 1.5+ million residents
• Sets a precedent for indirect potable reuse in the U.S.

Case Example: The pilot facility demonstrated success in producing potable-grade water from wastewater, paving the way for full-scale implementation by 2032.

6. Aquatech International

Headquarters: Canonsburg, Pennsylvania

Aquatech International delivers highly efficient, zero-liquid discharge and recycling systems. They serve sectors with high water needs, including energy, chemicals, and pharma. Their flagship HERO™ technology optimizes reverse osmosis for tough wastewater streams. Aquatech’s mobile systems allow rapid deployment for temporary or remote needs. With installations across six continents, they continue to drive innovation in water-stressed regions.

Key Innovations and Applications:

• HERO™: High-Efficiency Reverse Osmosis
• Mobile WASTOX™ systems for remote reuse needs

Impact Highlights:

• Helped a Texas petrochemical plant achieve 98% reuse
• Implemented ZLD at a major Indian refinery, recycling millions of gallons per year

Case Example: A U.S. shale gas operator used Aquatech’s modular ZLD units to reuse 95% of process water, drastically reducing disposal costs.

7. OriginClear Inc.

Headquarters: Clearwater, Florida

OriginClear delivers modular, decentralized water treatment units that offer on-site recycling solutions. Their plug-and-play systems are ideal for commercial, agricultural, and community-based clients. The company empowers users to control their own water supply and reduce dependence on public utilities. OriginClear’s approach is especially effective in underserved or rural communities. They are making water recycling more accessible, faster, and scalable.

Key Innovations and Applications:

• Modular Water Systems™ customized for on-site deployment
• Electro-oxidation for tough industrial wastewater

Impact Highlights:

• Reduced water costs for rural housing communities by 40%
• Rapid deployment models suitable for disaster-prone zones

Case Example: A California poultry processor installed OriginClear’s unit and recycled 20,000+ gallons daily, cutting sewer bills in half.

8. AqueoUS Vets®

Headquarters: Redding, California

AqueoUS Vets® designs and installs custom water treatment systems targeting PFAS, arsenic, nitrate, and other contaminants. The company, founded by veterans, specializes in groundwater restoration and potable reuse. Their turnkey solutions help municipalities and military bases meet strict regulatory standards. Their systems are mobile, scalable, and built for rapid deployment. AqueoUS Vets® emphasizes American manufacturing and operational transparency.

Key Innovations and Applications:

• Ion exchange and activated carbon filtration for PFAS and heavy metals
• Turnkey systems for potable reuse and environmental restoration

Impact Highlights:

• Installed systems for over 30 municipal clients across the West Coast
• Restored contaminated aquifers for reuse in agriculture and drinking water

Case Example: In California’s Central Valley, the company helped restore a contaminated aquifer, enabling 10,000 acres of farmland to resume irrigation.

9. WaterFX [Now Known as SOURCE]

Headquarters: Scottsdale, Arizona

SOURCE, formerly WaterFX, leverages solar-powered hydropanels to produce clean drinking water from air. Their technology serves off-grid, drought-prone, and infrastructure-limited communities. SOURCE has expanded its applications to include reuse research and atmospheric water generation. Their solutions require no external electricity, making them ideal for remote environments. They are redefining decentralized water supply in arid regions.

Key Innovations and Applications:

• Hydropanel tech using solar energy to condense atmospheric moisture
• Solar thermal distillation for brackish water reuse

Impact Highlights:

• Operating in 40+ countries with minimal environmental footprint
• Future roadmap includes integrating wastewater for reuse via solar platforms

Case Example: SOURCE deployed panels in Navajo Nation, providing decentralized water to homes with no infrastructure.

10. Brown and Caldwell

Headquarters: Walnut Creek, California

Brown and Caldwell is a top-tier environmental engineering firm specializing in city-scale water reuse. Their services range from planning and modeling to full implementation. The firm partners with utilities to build sustainable water recycling systems. They integrate digital twins and AI forecasting into infrastructure design. Their solutions reduce demand on freshwater sources while optimizing treatment efficiency.

Key Innovations and Applications:

• Digital twin modeling for water reuse system optimization
• Reuse master planning for large municipalities

Impact Highlights:

• Designed San Diego’s award-winning Pure Water Program
• Provides reuse roadmaps for utilities in 20+ states

Case Example: The firm helped Las Vegas achieve a 40% increase in water reuse capacity with AI-powered design optimization.

These 10 USA companies leading in water recycling innovations are redefining the future of sustainable water management. Their groundbreaking technologies, real-world impact, and scalable solutions offer hope amid growing water scarcity. As demand for recycled water rises, these leaders will continue shaping a resilient, water-secure future for communities and industries across the country and beyond.

Takeaways

These 10 USA companies leading in water recycling innovations are redefining the future of sustainable water management. Their groundbreaking technologies, real-world impact, and scalable solutions offer hope amid growing water scarcity. As demand for recycled water rises, these leaders will continue shaping a resilient, water-secure future for communities and industries across the country and beyond.

As the water crisis becomes a defining issue of our time, collaboration between private innovators, public agencies, and local communities is more essential than ever. These companies exemplify how advanced technology, forward-thinking policy, and sustainable business models can work together to solve one of humanity’s greatest challenges. 

innovations showcased here are paving the way for a future where water scarcity is met with ingenuity rather than sacrifice. Continued investment, awareness, and scalability will be key in ensuring these pioneering solutions reach every corner of the country—and eventually, the globe.