Surge for Water’s annual Chicago gala raises $192,000 to support global clean water and sanitation projects
H2O Team

RSK Group Limited has released its annual report and consolidated financial statements for the period from 1 April 2024 to 6 April 2025, showing another year of sustained financial growth across its global operations.

The company reported revenue of £2.2 billion, an increase of 21% year-on-year, and net fee income of £1.1 billion, up 13%. EBITDA reached £122.4 million, a 3% rise on the previous year, while cash generated from operations totalled £105.8 million – up 12%, representing an 86% free-cash-flow conversion rate. Cash at bank increased by 34% to £176.8 million.

Founder and Chief Executive Officer Alan Ryder said that RSK’s success reflects its positive global impact and commitment to sustainable development.

RSK Group Founder and CEO Alan Ryder

RSK is delivering a profoundly positive impact in the world and, in a time when the need for sustainable change has never been greater, it’s imperative that we continue to develop solutions to transform our world, said Alan.

Despite global uncertainty around the sustainability agenda, particularly in the United States, Ryder noted that market demand across RSK’s operating regions remains strong and continues to grow.

Interim Chief Financial Officer Frank Herlihy added that the company’s financial performance demonstrates resilience and focus:

RSK Interim Chief Financial Officer Frank Herlihy

RSK continues to invest heavily in business growth, both organically and through acquisitions, to deliver long-term value creation. This investment-led approach strengthens our capabilities, expands our geographic footprint and positions RSK as a global leader.

Over the past five years, RSK has increased its annual revenue from £275 million in 2020 to more than £2 billion, achieving a compound annual growth rate of 52%.

Strong Performance Across Core Markets

RSK focuses on four core markets critical to a sustainable future – water, energy, infrastructure, and the built and natural environment. In FY25, the water sector accounted for 43% of total revenue, growing by 25% year-on-year. Energy and environment-related sectors each contributed 21% and grew by 9% and 14% respectively, while infrastructure was the fastest-growing segment with a 36% rise over the previous period.

Growth Driven by Collaboration and Acquisition

Ryder highlighted the company’s “lily pad” model, which brings together RSK’s 200 specialist businesses to encourage collaboration, vertical integration and cross-selling:

Our businesses are recognised leaders in their respective fields. When multiple ‘lily pads’ come together and overlap, they generate added value for our clients and our people, he said.

During the financial year, RSK completed 11 acquisitions across the UK, Australia and Africa, welcoming new companies including eb7, Apollo Strategic Communications, 3BM Group, Kendall Kingscott, Edge Impact, Pegasys, N-Able Group and Elsym Installations.

Quick Reference Links

• RSK Group
• RSK Annual Report 2025
• RSK Sustainability Report 2025

RSK Reports Strong Financial Performance and Growth Across Core Sustainability Markets
H2O Team

Aid Cannot Wait – Hydrachem Urges Global Action to Break Barriers to Clean Water
H2O Team

DuPont Water Solutions has released an updated version of its WAVE PRO water treatment system design software, now featuring integration with DuPont™ AmberLite™ ion exchange resins. This new functionality enables users to model and design water treatment solutions with greater precision.

“WAVE PRO users can now run high-accuracy simulations of Ultrafiltration (UF) and ion exchange resin water treatment solutions,” said Gary Gu, Global Technology Leader at DuPont Water Solutions. “With access to validated proprietary models, users can quickly evaluate multiple scenarios—including multi-tech designs—to determine the most efficient configuration for their water treatment challenges.”

WAVE PRO is the next-generation cloud-based successor to DuPont’s pioneering Water Application Value Engine (WAVE) platform. Offered free of charge, the software provides access to advanced proprietary water treatment models that have been developed and validated over more than 30 years, with results referenced in over 100 scientific journals.

Designed with a simple and intuitive user interface, WAVE PRO supports collaboration by enabling secure cloud-based sharing with multiple project partners, eliminating version control issues. It also allows users to generate and export detailed reports and diagrams for distribution across project teams.

The platform includes an extensive library of feedwater configurations, built from real-world datasets across DuPont’s global research centres. With customisable modelling parameters, users can simulate site-specific water treatment processes, evaluate alternative designs, and incorporate economic factors to optimise operating costs and system efficiency.

WAVE PRO is available through the DuPont WaterApp suite, which provides a broad range of resources to support water professionals, from membrane optimisation to ion exchange resin planning.

Quick Reference Links

• DuPont Water Solutions
• WAVE PRO Design Software
• DuPont WaterApp
• AmberLite™ Ion Exchange Resins

DuPont launches enhanced WAVE PRO water treatment design software
H2O Team

GF has launched the new Type 4170 Sensor—an inline turbidity monitoring solution designed to provide real-time measurement with reduced maintenance and seamless integration when paired with its Type 8640 Transmitter.

Turbidity is a crucial indicator in water treatment, influencing regulatory compliance, equipment protection, and water quality assurance. Traditional bypass systems often come with sampling delays and complex maintenance. The inline Type 4170 offers an efficient alternative with no sampling delays, fewer parts to service, and built-in resistance to colour variations.

The Type 4170 features a slanted optical head, NIR illumination, and a PPSU light absorber to minimize cleaning needs and maintain accuracy under varying water conditions. Its inline design reduces bubble interference and sediment buildup. Multi-point factory calibration ensures stable measurement across a wide turbidity range.

Luca Barz, Global Product Manager at GF, states: “The Type 4170 inline turbidity sensor is compact, rugged and ISO 7027-compliant. Paired with the Type 8640 Transmitter, it provides water treatment professionals with a cost-effective, low-maintenance, high-accuracy monitoring system ready to meet today’s challenges.”

Quick Reference Links

• Type 4170 Sensor Quick Guide (PDF)
• Type 8640 Transmitter Quick Guide (PDF)
• GF Turbidity Sensor 4170 – YouTube Preview

GF Introduces Type 4170 Sensor for Inline Turbidity Monitoring
H2O Team

DuPont has been named among the winners of the 2025 R&D 100 Awards in the Mechanical/Materials category. The awards, now in their 63rd year, identify technologies that are advancing industrial performance and sustainability across global markets.

One of the technologies highlighted was the FilmTec™ Fortilife™ XC160 Membrane, developed for industrial wastewater treatment and reuse. The reverse osmosis element is designed to concentrate wastewater streams under ultra-high-pressure conditions, helping users to recover more water while lowering energy demand, carbon output and overall operating costs.

The membrane has applications in sectors where water reuse is a growing operational and regulatory priority. These include chemical and petrochemical manufacturing, steel and iron production, pulp and paper, power generation, textiles, and lithium-ion battery manufacturing.

Two further DuPont developments were also recognised:

• Tychem® 6000 SFR, a protective garment designed to be worn over flame-resistant clothing. It provides chemical resistance for more than 30 minutes against over 250 hazardous substances, including solvents and chemical warfare agents, without increasing burn risk during flash fire exposure.
• UV™ 26GNF Photoresist, a material used in semiconductor lithography, providing a non-fluorine alternative for precise patterning and reduced environmental impact in integrated circuit production.

According to Alexa Dembek, Chief Technology and Sustainability Officer at DuPont: “We’re honoured that three of our innovative technologies have been recognised for their game-changing impacts and delivering exceptional performance and value for our customers … translating cutting-edge thinking into customer-led solutions that help address some of the world’s most pressing challenges.”

The R&D 100 Awards are widely referred to within industry as a benchmark for technical innovation. In 2025, entries were received from 13 countries and assessed by a panel of 54 judges from across academia, research, and industrial sectors.

Quick Reference Links

• DuPont press release – 2025 R&D 100 Awards
• FilmTec™ Fortilife™ XC160 Membrane
• Tychem® 6000 SFR
• UV™ 26GNF Photoresist
• Alexa Dembek – DuPont leadership profile
• R&D 100 Awards

DuPont Recognised in 2025 R&D 100 Awards for FilmTec™ Fortilife™ XC160 Membrane
H2O Team

The Water Council announces the winners of our spring 2025 Tech Challenge, chosen by our sponsors to help solve real challenges in the water sector: Nafura Advanced Technologies and Segura Water, both based in the United Kingdom, and Atkinson Lab, part of Princeton University in New Jersey.

The Water Council’s Tech Challenge connects water innovators with leading water technology companies, facilitating potential partnerships and helping new ideas and technologies gain exposure in the industry.

Winners were selected from dozens of submissions from 11 countries. The challenge’s sponsors – A. O. Smith Corporation, Badger Meter, Watts Water Technologies and our newest sponsor, Xylem – chose the challenge topics and selected the winners to receive $10,000 prizes:

• Sensors for biological organisms and disinfectant byproducts: Atkinson Lab, part of the Department of Civil and Environmental Engineering and Omenn-Darling Bioengineering Institute at Princeton University. The Atkinson Lab develops biohybrid devices for sensing small-molecule chemicals and biological macromolecules (e.g., proteins, RNA and DNA) and converting binding events into electrical signals.
• Removal of organic contaminants from water: Nafura Advanced Technologies, based in Stoke-on-Trent, U.K. Nafura, in partnership with Deep Science Ventures, is transforming industrial wastewater management with a plasma-based system that delivers industrial-capacity water treatment in one-thousandth the footprint and half the cost of traditional methods.
• “Lab on a chip” for water and wastewater applications: Segura Water, based in London. Segura transforms how utilities detect heavy metals in drinking water with a rapid, low-cost tool that provides lab-quality results in under five minutes right in the field.

“We know contaminants such as PFAS, heavy metals and biological organisms require a unique approach to water and wastewater treatment,” said Katie Kollhoff Mouat, director of innovation programs at The Water Council. “We’re proud to help uncover the next generation of solutions and connect them with the networks and resources they need to grow.”

Related articles:
Three Winners Named for The Water Council’s Tech Challenge

Tech Challenge Winners Address Pressing Water Challenges
louise davey

Surge for Water, a global women-led, community driven nonprofit dedicated to providing sustainable water plus sanitation, hygiene (WASH), and menstrual health solutions, is proud to announce a significant milestone in its ongoing partnership with personal care brand Soapbox: more than 1 million bars of soap have now been produced and distributed to communities in Uganda and Haiti.

This milestone reflects more than just numbers—it marks a ripple effect of transformation driven by local ownership, gender equity, and deep collaboration. Since the partnership began in 2021, Soapbox and Surge for Water have:

• Produced and distributed 1,065,574 bars of soap
• Trained 6,262 people in soap-making
• Educated 11,048 students on critical handwashing and hygiene practices
• Supported the creation of 50 formal soap-making businesses and countless informal ventures

With Soapbox’s renewed commitment for 2025, the collaboration will produce an additional 500,224 bars of soap, continuing to strengthen hygiene infrastructure and economic opportunity in the regions that need it most.

“This partnership goes far beyond soap,” said Shilpa Alva, Founder and Executive Director of Surge for Water. “It’s about restoring health, enabling education, and driving economic empowerment. By training women and supporting community-based businesses, we’re building solutions that are equitable and lasting.”

Surge’s approach centers on women because they are the primary caretakers of water and hygiene in their communities, and they bear the greatest burden when access is lacking. Yet too often, they’re excluded from the decisions that shape their lives. Surge invests in women as leaders, entrepreneurs, and advocates—offering vocational training, leadership opportunities, and safe spaces—so that every solution advances gender equity and strengthens entire communities.

“We believe in solutions that stay rooted in community,” said David Simnick, CEO & Co-Founder of Soapbox. “By partnering with Surge for Water, we’re able to go beyond products and invest in local soap makers, small businesses, and the women driving real change where it’s needed most.”

By collaborating with local governments, grassroots organizations, and partners like Soapbox, Surge ensures that all water, sanitation, and hygiene (WASH) initiatives are locally owned, culturally relevant, and deeply impactful. This community-centered model is a powerful alternative to large-scale nonprofits—offering donors a deeply personal and meaningful way to support transformative change at the grassroots level.

This joint effort contributes directly to goal six of the United Nations’ Sustainable Development Goals—clean water and sanitation for all—and is part of Surge’s larger commitment to reach 1 million people across 10 districts by 2030.

To get engaged with helping provide sustainable water, sanitation, and hygiene solutions to those most in need, engage with Surge for Water by visiting surgeforwater.org.

Surge for Water and Soapbox Celebrate 1 Million Bars of Soap Milestone <h2 class='sub-title'>A transformative partnership uplifting communities while redefining hygiene access and economic opportunity in Uganda and Haiti</h2>
H2O Team

At Liquid I.V.^®, we believe that water is a basic human right — yet 1 in 4 people worldwide lack access to clean, safe water². In recognition of World Water Day, an annual United Nations observance day dedicated to celebrating water and inspiring action to tackle the global water crisis, Liquid I.V. ^® is announcing the expansion of its successful U.S. grant model to select international markets where Liquid I.V.^® is sold.

Liquid I.V.^® is committed to annually donating over 1% of its total revenue globally towards sustainable and inclusive clean water access initiatives. This marks the first time select international markets will participate in the brand’s water impact efforts.

“At Liquid I.V., we believe hydration transforms lives, and it all starts with water” said Jostein Solheim, CEO, Unilever Wellbeing Collective, Liquid I.V.^® parent company. “Expanding access to clean water for communities in need is our signature cause, and one that we are committed to growing alongside our business. We are proud to be scaling our efforts and engaging more Liquid I.V.^® teams, partners and consumers in the process.”

Through these efforts, we are welcoming four new partners funded by more than $500,000 USD in total international market grants to further our mission to advance access to clean and abundant water for vulnerable communities around the world:

• Water First – Canada: Supporting the Drinking Water Internship; a program designed to help Indigenous youth and adults develop the technical skills and hands-on training to monitor and maintain safe water in Indigenous communities.
• Isla Urbana – Mexico: Supporting the installation of rainwater harvesting systems within schools, residences and communities.
• University of Melbourne – Australia: Supporting a team at the University of Melbourne to research low-cost methods to remove harmful groundwater contaminants that affect drinking water in rural communities in India.
• WaterAid – United Kingdom: Supporting the installation of a solar-powered water system to provide access to water for drinking and handwashing at a health center and community in Zambia.

In 2024 alone, through contributions from the U.S. and international markets, Liquid I.V.^® invested more than $4 million USD in clean water access grants, supporting the work of 18 organizations and expanding access to clean, safe water for over 800,000 people globally.

Liquid I.V.^® invites consumers to learn more at www.liquid-iv.com/pages/clean-water-impact and follow @liquidiv.uk on Instagram, TikTok, Facebook, and Twitter.

Liquid I.V.® announces expansion of its giving commitment to select international markets, accelerating efforts to provide clean water access for more communities in need around the globe 
louise davey

Capture6, whose integrated system converts waste brine into both fresh water and carbon removal solutions, announces $27.5 million in Series A and project funding. Capture6 was advised by financial advisor Rothschild & Co. for the capital raise and the round was led by private equity firm Tetrad Corporation, with participation by Hyundai Motor Group’s ZER01NE Ventures, Energy Capital Ventures, Elemental Impact, Bridge Investment, Sopoong Ventures, Third Derivative, Stan and Jane Rodbell, and the Jacob S Shapiro Foundation. The Series A raise will allow Capture6 to advance core water recovery and carbon removal projects in its global pipeline.

“Climate change is creating water insecurity for much of the world’s population, driving up demand for freshwater worldwide, and exacerbating the root problem as current methods of water treatment are carbon intensive,” said Capture6 CEO Ethan Cohen-Cole. “Our approach reduces waste streams from desalination and wastewater treatment while generating new water sources, lowering waste disposal costs, improving the efficiency of water production facilities, and decarbonizing projects simultaneously.”

Capture6’s integrated system connects directly with existing water infrastructure to reinvent carbon removal and water treatment simultaneously. Unlike traditional direct air capture methods that use energy-intensive multi-step processes, Capture6’s system transforms waste brine — normally expensive to dispose of — into a solvent that directly mineralizes CO2 in a single step. This system creates valuable green chemicals for water facilities while recovering additional freshwater from brine that would otherwise be wasted. By addressing both climate and water security challenges within existing infrastructure, Capture6 offers a practical solution as the World Economic Forum projects freshwater demand to exceed supply by 40% by 2030.

“Numerous businesses and industries face wastewater disposal and freshwater acquisition challenges to their growth and long-term success,” said Tetrad spokesperson and board member Aaron Hilkemann. “In Capture6, we see a company committed to addressing these challenges head-on. Their solution decreases the financial burden for businesses and builds momentum around environmentally beneficial methods of water production and waste treatment.”

The company recently partnered with Palmdale Water District to eliminate the need for up to 100 acres of brine ponds and save up to 40% in lifetime costs through the use of their technology at a new facility. Capture6 is helping the District provide Southern California residents with new water supplies while helping the state meet its goal for carbon neutrality by 2045.

“Fresh water scarcity demands we rethink traditional water infrastructure to ensure districts can provide affordable, clean water and remove harmful pollutants,” said Danya Hakeem, VP of Portfolio at Elemental Impact. “We are proud to double down on our support for Capture6 and the Palmdale Water District project to help deliver meaningful cost savings while providing reliable, clean water to a community that needs it most.”

The successful Series A raise demonstrates Capture6’s ability to drive business and environmental value simultaneously.

“The technologies with the biggest potential impact are those that enable clean, safe, reliable, cost-effective energy,” added Energy Capital Ventures Vic Pascucci. “This funding elevates Capture6 as the industry leader in direct air capture, while simultaneously producing fresh water. After years of studying this space, we recognize Capture6 as a true game-changer through permanent carbon removal plus water security.”

Capture6 has so far announced four water positive carbon capture facilities across three continents. The company is developing a global pipeline, integrating with industrial partners in the U.S., Republic of Korea, New Zealand, Australia, and the Middle East. In 2024, the company also announced that Frontier facilitated a pre-purchase of 1,000 tons of carbon removal for Shopify and Stripe.

Capture6 completes $27.5 million Series A and project funding round to scale the production of fresh water and carbon removal
H2O Team