Joining the RSK Group in 2021 and based in the Manchester area in the UK, MWH Treatment is a sector-leading solutions provider operating across the UK water industry, with over 800 process intelligence professionals and a sector heritage that dates back to 1820. Today, the water sector is facing unprecedented challenges that are driving the need to find smarter ways to achieve sustainable outcomes.


MWH Treatment’s teams work within six major frameworks, including integrated joint ventures and alliances. Their design and build culture offers a complete range of end-to-end services for all water and wastewater solutions, from Β£100 million major projects through to minor capital maintenance, including a 100-strong multi-trade, direct workforce and asset management teams.

The company is a recognised leader in providing sustainable engineering solutions for critical non-infrastructure water assets, specifically water and wastewater treatment works, pumping stations and reservoirs. Some of the work MWH Treatment is involved with features joint ventures and alliances with Anglian Water, Scottish Water, Severn Trent Water, Southern Water, Thames Water and United Utilities.

MWH Treatment constantly pushes innovation and collaboration boundaries, including an internationally awarded digital delivery strategy, supporting clients in outperforming their regulatory challenges. Working across multiple disciplines, its engineering team collaborates with clients and supply chain partners to lead the way in the UK water industry and to be at the forefront of technical advances, including both digital and treatment technologies.

Understanding that unlocking creativity and innovation are key to delivering safe, sustainable solutions, MWH Treatment utilises its design teams and engineering disciplines (process, civil, mechanical, electrical controls and digital) to help shape a better world by delivering on complex projects.

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