Stonbury is a leading UK water and environmental sustainability specialist.
The national business, headquartered in Bedfordshire, has a 40-year heritage of working with UK water companies and environment agencies to deliver innovative, low-carbon solutions to maintain, repair and refurbish their critical assets, from drinking water provision to wastewater treatment, helping to protect supplies and extend asset lives.
The company also delivers nature-based solutions to help customers operate more sustainably and mitigate the impacts of climate change. These range from restoring rivers to increase their capacity to retain water and boost biodiversity, to implementing natural flood management programmes that include artificial wetland creation and river channel works.
Building future-focused solutions
In December 2022, LDC completed a significant investment in Stonbury to continue to grow the business through expanding its range of water, wastewater and nature-based, low-carbon environmental services, through organic growth and acquisitions. LDC is also helping the business to further expand into clean energy solutions.
In November 2025, Stonbury announced the appointment of Colin Perry-Davis as CEO, replacing Trevor Hoyle who led the business since July 2021. Trevor will continue as a Non-Executive Director.
We knew from the moment we met David and the LDC team that they were the right investment partner for us. Their relationship-first approach and extensive network of connections were important factors in our decision. With LDC’s support, we are actively exploring organic and acquisitive opportunities to expand our range of services.”
Strategic acquisition
In 2024, Stonbury acquired Panton McLeod, the industry-leading advanced inspection and cleaning specialist of public, commercial and industrial water assets. The addition of the 50-strong Panton McLeod business serves to strengthen Stonbury’s position in the water and environment sectors and builds upon its rich heritage of supporting UK water companies.
Science based carbon reduction commitment
In its recently published ESG Report, Stonbury reports strong progress against its science based carbon commitments. The company’s near term targets have been validated by the Science Based Targets initiative (SBTi), including a commitment to reduce Scope 1 and Scope 2 emissions by 50% by 2030 from a 2018 baseline.
During the latest reporting period, Stonbury reduced carbon emissions by an average of 25 tonnes per month, achieved a 24.9% reduction in emissions intensity since 2019, and transitioned over 85% of its company car fleet to low emission or electric vehicles, while also cutting office energy consumption by 10%. These results demonstrate measurable progress towards net zero while continuing to grow responsibly.
Awards
Private Equity Deal of the Year
Central and East of England Dealmakers Awards 2023