Strengthening hydrogen and ultra-pure water expertise as a global differentiator
Grünbeck Waterbehandeling has built a strong market position across industries including healthcare, residential, food & beverage, and hydrogen. With more than 300 reference projects and over 100 ultra-pure water pilot installations developed for the hydrogen sector worldwide, Grünbeck Waterbehandeling stands out as an expert in supporting the energy transition. Its portfolio ranges from compact units to large-scale industrial systems delivering capacities from a few liters to several thousand liters per hour.
Delivering customer value with scalable water treatment solutions
“We are delighted to welcome our new colleagues of Grünbeck Waterbehandeling to the NSI team. With their strong and complementary product portfolio, Grünbeck enables NSI to address ultra-pure water applications and clean-water reuse expertise in commercial buildings, delivering greater value to our customers. This acquisition is not only about growth, but about supporting our fast-growing customer base with water-on-demand solutions, helping them restore and close the water loop, contributing to a resilient future.” says Menno M. Holterman – CEO NSI.
Nick Liebrand – CEO Grünbeck Waterbehandeling adds: “We are excited to be joining the NSI Clean Water Solutions team. Since 2009 Grünbeck Waterbehandeling helps industries to efficiently treat process water, enabling customers to focus on their core business. For our future expansion we chose to move forward with NSI. The personal relationship we have built with their Board, combined with the unique potential NSI brings to accelerate our growth, makes them the ideal partner for our next chapter.”
"We are delighted to welcome our new colleagues of Grünbeck Waterbehandeling to the NSI team "

About Grünbeck Waterbehandeling
Established in 2009 in the Netherlands, Grünbeck Waterbehandeling specializes in process water treatment solutions across multiple sectors. Known for reliability, customer service, and innovation, Grünbeck combines local market expertise with a global footprint in hydrogen water purification pilots. Grünbeck’s commitment to quality and sustainability has been recognized multiple times, including being awarded as the “Brand of the Century in Water treatment” by ZEIT Verlag.
www.gruenbeckwaterbehandeling.com/nl/home-nl/
About Nijhuis Saur Industries
Founded in 1904, Nijhuis Saur Industries, part of Saur Group, provides solid and adaptive solutions for sustainable and resilient water use, energy- and resource recovery. Since the inception of Saur’s Industrial Water platform in 2020 more than 14 companies have been successfully acquired and integrated into one global operating company supporting municipal and industrial clients in over 140 countries with engineering and consultancy services, EPC / DBFOM project execution, mobile water solutions and O&M site services. With an extensive portfolio of innovative technologies and game-changing solutions, Nijhuis Saur Industries (NSI) delivers local, scalable, and circular water-on-demand solutions to more than 7.000 references around the world and contributes to a more sustainable and resilient future.
Our purpose is to be an advocate for water, ensuring everyone gives water the value it deserves. With our unique Customer for Life approach, we protect water resources, contribute to the water-, energy-, waste- and food transition, and help to restore and close the water loop. We call it #MissionWater.
About Saur Group
As the first water company to issue blue bonds in 2024, Saur is pioneering the integration of environmental responsibility and financial innovation. Guided by its purpose – to advocate that everyone gives water the value it deserves – the Group provides water distribution, wastewater treatment, and smart water solutions to 20 million consumers and 9,200 local authorities and industrial clients worldwide. In 2024, Saur achieved over €2.3 billion in revenue and employed 12,000 people across more than 25 countries.