We’re part of the Thames Water Group and we act as the commercial and customer service link between Thames Water and purchasers of water and/or wastewater wholesale services.
This means we provide water and/or wastewater wholesale services to retailers, business customers, New Appointments and Variations (NAVs), other wholesalers and other third parties. If you’re a non-household customer, your water and wastewater services are sold to you by your retailer — we provide it to the retailer.
Operating across London and the Thames Valley we’re responsible for the abstraction, storage, treatment and distribution of your water services, as well as the collection, treatment and disposal of your wastewater services.
To check if you're in our supply area, enter your postcode in our supply checker.
Wholesale Market Services are the commercial and customer service link between Thames Water and purchasers of water and/or wastewater wholesale services. We're here to make sure you receive the best possible service and experience when doing business with us. We're committed to working with you to ensure we support and help facilitate competition and continuously work to improve the services we deliver.
If you’re a retailer, business customer, new appointment and variation (NAV), wholesaler, or a third party wanting to know more about becoming a customer please visit our contact us page.