G Stow, one of the UK’s leading specialists in groundwater engineering and borehole services, has announced a key leadership change as the business prepares for its next phase of growth.
Mike Williams has been appointed Divisional Director of G Stow and fellow South Staffordshire Plc Group business IWS M&E, effective 5 January 2026. In this newly titled role, Mike will lead both businesses and support continued investment in technical excellence, safety and customer service.
Mike brings over 18 years’ operational and customer‑focused leadership experience across HM Courts & Tribunals Service, Severn Trent Services and Severn Trent Water. He has led UK‑wide operations in highly regulated environments, delivering sustained improvements in performance, customer experience and employee engagement, and has a strong track record in large‑scale operational delivery, commercial contract management and transformational change.
This change follows Dean Adams’ transition to a new leadership role within OnSite, another South Staffordshire Plc business. Dean has played an important role in supporting G Stow’s development in recent years, and the company thanks him for his contribution.
Barry Hayward, Group CCO at South Staffordshire Plc said:
“Mike’s leadership will help us build on G Stow’s long heritage and technical expertise as we continue to support customers with reliable, sustainable groundwater solutions. I am delighted to welcome him to the Group. A huge thank you to Dean for his contributions to G Stow, and I look forward to continuing to work with him in the future.”
Mike Williams added:
“I’m thrilled to step into this role and a business with both a strong heritage and huge future potential. G Stow has a talented team and strong technical capability, and I’m excited to build on that foundation and drive the next stage of growth and performance.”
G Stow will continue to focus on delivering high‑quality engineering services across the water, environmental and infrastructure sectors, with a strong emphasis on safety, innovation and customer value.

