Last reviewed: 1.11.2011 - 3.22pm
Every day, we supply 2,600 million litres of tap water to 8.8 million customers across London and the Thames Valley.
We carry out over 400,000 tests per year to ensure our drinking water meets stringent UK and European standards.
We also remove and treat more than 4 billion litres of sewage for an area covering 14 million customers.
Our 350 sewage treatment works include Beckton, in east London, which is the largest in Europe. Several of these works create renewable energy, making us the biggest generator of 'green power' within the M25.
Follow the links below to find out more about our business.
In this section
Our supply area
Find out more about the areas we supply clean water and wastewater services.
Our management team
Our directors between them have a wealth of management and financial experience, together with extensive knowledge of the water industry and other regulated utilities.
Our performance
Read our annual report to get a clear picture on how we are performing and how we spend the money raised from customer bills.
Financial information
Find out more about our financial results and our investors.
Our regulators
We seek to work collaboratively with all of our regulators to maintain our good performance and compliance record.
Facts and figures
Take a look at this section if you want to find out how many treatment works we have, the total length of our sewers, or other basic facts about what we do.
Our history
Travel back through the centuries to learn more about the history of local water and wastewater services, then explore the innovations of the present day.
Our achievements
Over the past few years, we have performed better than ever, and our business has been recognised and rewarded by many bodies.
Property services
Thames Water Property Services is a subsidiary of Thames Water that manages around 18,000 acres of property on over 5,000 sites.
24: A business in control
We provide the essential service to 14 million customers - more than any other UK water company. We've produced a short film which demonstrates what we do - 24 hours a day, 365 days a year.
Our strategies and plans
Providing the essential service to our 14 million customers is not something we take for granted, so we're always planning for the future.
The Big Map
We're investing nearly £5bn between 2010 and 2015. Explore our interactive map to find out how your region will benefit.
Our achievements
Over the past few years, we have performed better than ever, and our business has been recognised and rewarded by many bodies.
