Research and analysis
Water industry performance insights: joint regulator report
This report provides an overview of water industry performance, bringing together regulator data and insights from our latest individual publications. It uses performance data for the 2025 calendar year and the financial year ending March 2026.
Applies to England and Wales
Documents
Details
Performance of the water industry in England and Wales is overseen by 4 regulators:
- the Drinking Water Inspectorate
- the Environment Agency
- Natural Resources Wales
- Ofwat
There are 11 water and sewerage companies. They provide water supply and wastewater (sewerage) services. There are 6 water only companies. They provide clean drinking water.
This report provides an overview of these 17 companies’ performance.