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ocds-h6vhtk-06d965 · tenderUpdate

Independent Monitor - Thames Water

Water Services Regulation Authority (Ofwat)

Estimated Value

Up to £13,000,000

Deadline

11 September 2026

Published

4 September 2026

Type

Not specified

West MidlandsGBopen

Overview

Ofwat is procuring an Independent Monitor (IM) to provide independent monitoring, analysis and reporting in relation to Thames Water's turnaround programme, financial resilience and compliance with undertakings accepted by Ofwat following a breach of licence condition P26. The IM will support Ofwat's Turnaround Oversight Regime by monitoring and assessing Thames Water's progress in delivering its turnaround plan and complying with regulatory commitments.

The IM will provide independent oversight of governance, operational performance, financial resilience, transformation activities and delivery confidence, and identify and report material risks, issues and emerging concerns to Ofwat. The IM will undertake monitoring and reporting services across a broad range of functions, including operational performance, financial resilience, governance, transformation programmes, regulatory submissions, capital delivery and asset management.

The IM will report regularly to Ofwat and provide independent evidence and analysis to support regulatory oversight and decision-making. The role is expected to operate in a dynamic and evolving environment.

Additional details

The nature, scope and intensity of the IM's activities may increase or decrease during the contract term to reflect Thames Water's progress, risk profile, recapitalisation activities, regulatory developments and wider turnaround programme. The contract has therefore been designed to support a scalable and proportionate monitoring approach.

The IM will be appointed by Ofwat, will act independently of Thames Water, and will provide recommendations and advice to Ofwat only. The costs of the independent monitor will be met by the Company, and will not impact on customer bills.

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Likely incumbents

Suppliers who won similar work from this buyer in the last 5 years.

4 found
  1. 1

    Grant Thornton UK Advisory & Tax LLP

    1 contract wonlatest 29 Sept 2026ends 12 Oct 2028

    £5m

    total awarded

  2. 2

    Nesta

    1 contract wonlatest 15 May 2025

    £15m

    total awarded

  3. 3

    Isle

    1 contract wonlatest 15 May 2025

    £15m

    total awarded

  4. 4

    ICF Consulting Services Ltd

    1 contract wonlatest 15 May 2025

    £15m

    total awarded

Grant Thornton UK Advisory & Tax LLP is the most likely incumbent based on recency and category match. To win, bidders typically need a clearly differentiated proposition or a price advantage.

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SponsoredEst. 2010
Gladstone & Co AccountantsTax advisers · East Ham, London

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Buyer Profile

Water Services Regulation Authority (Ofwat)
Typepublic body
RegionUKG31
Total tenders3
Total spend£32,500,000
View buyer profile

Key Dates

Published

4 September 2026

Submission deadline

11 September 2026

Notice type

tenderUpdate

Source

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