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PERMANENT AWARD EVIDENCE

CPT_26_39 Specialist model assurance support

National Audit Office · published 26 Aug 2026. This page preserves the identifiers and current held fields for one Contracts Finder release; it is not an invoice, performance assessment or complete contract history.

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Contracts Finder release IDac06dc1e-2908-4a2f-8b6b-286917e5d412-912158
Open Contracting ID (OCID)ocds-b5fd17-6bc5942d-7e5a-4ed2-900c-ae594f9e9562
Buyer identifierGB-SRS-sid4gov.cabinetoffice.gov.uk/sBN45ywB
Release typeaward
PUBLISHED COMMERCIAL FIELDS

Values stay separate.

A tender estimate and an award value answer different questions. Neither is treated as cash paid.

Award value
£336,000
award field
Tender value
£336,000
tender field
Procurement method
Call-off from a framework agreement
Category
services
CPV
79210000
Accounting and auditing services
Delivery
United Kingdom
No postcode
PUBLISHED DESCRIPTION

What the notice says

The National Audit Office awarded a contract to Hartley McMaster Limited through the Crown Commercial Services GCloud 14 framework. The supplier will oversee and lead the testing of a subset of models within the NAO model assurance portfolio. The contract will commence on Monday 4 January 2027 and run for an initial period of three years until Thursday 3 January 2030. At the NAO's discretion, the contract may be extended by up to 12 months, until Friday 3 January 2031. The estimated contract value is £336,000 inclusive of VAT over the full four-year term.

Tender statuscomplete
STAGE-DATE LEDGER

Reported dates, without an invented lifecycle.

The current projection contains one award release, not a verified chain of planning, tender, award, contract and modification records. Dates are shown in source-field order and are not silently repaired.

Source-date conflictAt least one reported end date precedes its corresponding start date. Check the official notice before using the schedule.
  1. 01Notice publishedPublication timestamp on the held release26 Aug 2026
  2. 02Tender period startsTender-period field as published4 Jan 2027
  3. 03Tender period endsTender-period field as published1 Jun 2026End precedes start · verify
  4. 04Contract startsContract-period field as published4 Jan 2027
  5. 05Contract endsContract-period field as published3 Jan 2031
SUPPLIER EVIDENCE

Published names and exact identifiers

A company profile appears only when this release carries a usable company number. Name-only suppliers remain name-only.

SOURCE

Contracts Finder release

Published 26 Aug 2026 · held through the daily award projection · Open Government Licence v3.0.

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