MOSL is the market operator for the non-household water market in England. They support the Open Water programme by working with Defra and Ofwat on behalf of their members.

MOSL’s role is to deliver the operational capability needed to support the efficient operation of the new market.

More information

Wholesale Team

We're here to help

Call our Wholesale Team on
0330 111 0780
Monday to Friday
8.30am to 5.30pm

Our Supply Areas

Find out our supply regions

If you’re not sure what services we provide or where our regions are, click below to find out