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We're the UK’s largest wholesale water and wastewater services provider. We look after business and non-household customers such as restaurants, supermarkets, hospitals and schools. Learn more about who we are, our charges, the water market reform, our customer commitments and our latest network updates.

Illustration of Thames Water technicians

Retail providers

We have a range of services to offer retailers who serve non-household customers within our region.

Non-household customers

We have a range of services and guidance on offer to businesses, charities and public sector organisations within our region.

Wholesale providers

If you're a wholesale provider, get help with billing and account queries and NAV setup.

Water service intermediaries

If you're a water service intermediary, learn more about consumption data.