Ofwat has concerns about the financial resilience of half of all water companies in England and Wales. The regulator raised concerns about eight firms in its annual financial resilience report, despite concluding that the sector has improved overall during the past year largely thanks to £4.6 billion of new money committed by shareholders. Thames, Southern and SES were classified as requiring urgent action to improve financial resilience for the second year running and were joined by South East in the list of companies which Ofwat is most concerned about.