Spotlight: NSI
Spotlight on Our Parent Company: Nijhuis Saur Industries (NSI)
Here at Natural Systems Utilities (NSU), we’re proud to be part of the Nijhuis Saur Industries (NSI) family. In this post, we’re taking a closer look at how NSI’s global reach, expertise, and innovation strengthen everything we do for our clients and partners.
A Legacy of Innovation and Water Expertise
With roots tracing back to 1904, NSI has over a century of experience solving complex water challenges. What began as a small machine factory has evolved into one of the world’s premier water and resource management companies.
Through decades of innovation — from early wastewater treatment systems to advanced resource recovery and reuse technologies — NSI has built a reputation for engineering excellence and sustainable solutions.
For NSU, being part of this legacy means we’re backed by generations of knowledge, proven results, and a passion for protecting and reimagining water.
A Global Platform with Local Reach
NSI operates around the world, serving clients in over 140 countries through a network of regional centers of excellence. This global platform combines world-class innovation with local expertise, ensuring that solutions are both cutting-edge and tailored to each community and industry.
For NSU and our clients, this means access to a global ecosystem — the scale, resources, and best practices of an international leader, paired with the hands-on service and responsiveness you expect from a trusted local partner.
Comprehensive Capabilities Across the Water Cycle
NSI brings a full spectrum of capabilities across the water value chain — from consulting and engineering to turnkey delivery and long-term operation and maintenance.
Its expertise spans:
- Consulting and process design to help clients develop water strategies that support sustainability and performance goals.
- Design-Build-Finance-Operate-Maintain (DBFOM) and EPC project delivery to bring complete systems online efficiently and reliably.
- Mobile and modular systems that make it possible to deploy treatment and reuse solutions quickly and flexibly.
- Operations and maintenance services that ensure facilities run smoothly and efficiently throughout their lifecycle.
These capabilities expand NSU’s ability to deliver fully integrated, end-to-end water solutions — reducing risk, improving resilience, and maximizing value.
Technology and Innovation at the Core
Innovation is at the heart of NSI’s mission. Their focus on “reduce, remove, reuse, and recover” drives a portfolio of advanced technologies that minimize environmental impact and maximize resource efficiency.
From membrane filtration and dissolved air flotation (DAF) systems to nutrient recovery and digital monitoring platforms, NSI continually develops and applies new ways to make water systems smarter and more sustainable.
This innovation mindset directly benefits NSU’s clients, ensuring that the solutions we provide today are designed for the challenges of tomorrow.
Synergy that Strengthens Our Mission
The relationship between NSU and NSI is far more than parent and subsidiary — it’s a true partnership built on shared values and complementary strengths.
By joining the NSI family, NSU gained access to a global platform of expertise, technologies, and resources, enhancing our ability to deliver high-performance water reuse and decentralized treatment systems across North America.
In return, NSU contributes decades of leadership in sustainable and distributed water management, helping expand NSI’s footprint and influence in the growing U.S. reuse market.
What This Means for Our Clients
Being part of Nijhuis Saur Industries brings clear benefits to NSU’s clients:
- Depth of experience across industries and applications, backed by more than a century of global success.
- Access to advanced technologies and proven solutions for water reuse, treatment, and resource recovery.
- Global resources with local delivery, offering the best of both worlds — worldwide expertise combined with regional responsiveness.
- Lifecycle partnership through design, construction, operation, and maintenance.
- Alignment with sustainability goals, circular economy principles, and the evolving regulatory landscape.
Looking Ahead
Together with NSI, NSU is driving the future of sustainable water management. We’re continuing to expand our work in decentralized and onsite reuse systems, advance digital monitoring and optimization, and develop more resource-efficient approaches that transform how communities and industries think about water.
The Future is Water
Joining Nijhuis Saur Industries has strengthened every part of NSU — from our technology and service capabilities to our vision for a sustainable water future. Together, we’re helping clients turn challenges into opportunities and making water systems more resilient, efficient, and circular.
At NSU, we’re not just building treatment systems. We’re building the future of water — backed by a global powerhouse committed to innovation, sustainability, and partnership.













