Buyer profile
National Audit Office
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Total contracts
443
Known spend
£222m
418 disclosed
Average value
£530,828
Per contract
Active suppliers
10
Last 5 years
Top suppliers
Last 5 years- 1
KPMG LLP
£14m
- 2
DELOITTE LLP
£18m
- 3
ERNST & YOUNG LLP
£10m
- 4
GRANT THORNTON UK LLP
£7m
- 5
PRICEWATERHOUSECOOPERS LLP
£7m
- 6
Phoenix Software Limited
2 winslatest 20 Aug 2026£6m
- 7
FORVIS MAZARS LLP
£6m
- 8
XMA Ltd
2 winslatest 08 Dec 2025£6m
- 9
Ipsos (Market Research) Limited
2 winslatest 24 Dec 2025£684,809
- 10
Success at School Ltd
2 winslatest 20 May 2026£34,200
What they buy
By CPV categoryBusiness servicesCPV 79
297 contracts · £158m
IT servicesCPV 72
52 contracts · £33m
SoftwareCPV 48
13 contracts · £1m
Financial & insuranceCPV 66
13 contracts · £398,215
Architectural & engineeringCPV 71
8 contracts · £323,260
Education & trainingCPV 80
7 contracts · £911,000
Office & computing equipmentCPV 30
6 contracts · £2m
Radio, TV & telecomsCPV 32
6 contracts · £584,752
Renewal radar
Awarded contracts predicted to come up for re-tender in the next 18 months
- Success at School Apprentice Campaign 2026/2027
Predicted using median duration of UK contracts in the same CPV division (11 months from contract start date → renewal expected by Jun 2027).
Jun 2027
40% confident
- CPT_23_63 Asset Valuation
Predicted using median duration of past contracts from this buyer in the same CPV division (47 months from contract start date → renewal expected by Dec 2027).
Dec 2027
60% confident
Tender activity
Notices published per month — last 24 months
All contracts (443)
BBC studios productions 2018-19
BBC Special Purpose Vehicles - for 2018-19 audit: - This assignment relates to the BBC Studios Production, BBC Children's Productions, BBC Comedy Productions, BBC Natural History a
BBC group 2018-19 MS tax
•IR35 - over the course of 2017-18, a number of pay-related issues, including the impact of changes to IR35 taxation rules, were identified as an audit risk. Accounting for people-
Mezzanine furniture 2018-19
Furniture for refurbishment project
Valuation tribunal service 2018-19
Completion of a fully ISA compliant audit and provision of a shadow audit opinion for the C&AG on the Valuation Tribunal Service 2018-19 financial statements. To include a regulari
The crown estate- 2018-19
Specialist support on the audit of property valuations for the Crown Estate audit.
Raining/skills development - performing a P2P controls based audit 2018-19
Supplier to deliver skills development support in the delivery of controls based audit of a purchase to pay system.
Tate 2018/19
Completion of Planning, Interim Audit and Final Audit for the Tate 2018-19 Financial Statements including PWC attendance at client meetings
British museum 2018/19
Completion of Planning, Interim Audit and Final Audit for the British Museum 2018-19 Financial Statements including PWC attendance at client meetings
Actuarial services 2018-19
Creating a business case for renewal of the work undertaken by PwC on behalf of local auditors (and made available to the Practice) on the reasonableness of the assumptions used fo
Research councils' pension scheme - 2018-19
The completion of an ISA compliant financial audit of the Research Councils' Pension Scheme 2018-19.
TPS, ukaea pensions, EA active & closed Funds-2018-19
The contract covers the financial audit of the Teachers' Pension Scheme (including the WGA submission) the UKAEA Pension Scheme and the Environment Agency Active and Closed Pension
Financial audit of NHS and armed forces pension schemes - 2016-2021
This is a business case for a contract that is already in place (reference Gen 16-13). The contract covers the financial audit of the NHS Pension Scheme (including the WGA submissi
Natural england 2018-19
Completion of a fully ISA compliant audit and provision of a shadow audit opinion for the C&AG on the Natural England 2018-19 financial statements. To include a regularity audit an
Greenwich hospital 2018-19
We require the completion of a fully ISA compliant audit and provision of a shadow audit opinion for the C&AG on the Greenwich Hospital 2018-19 financial statements. The financial
Royal hospital chelsea 2018-19 accounts
Completion of a fully ISA compliant audit and provision of a shadow audit opinion for the C&AG on the Royal Hospital Chelsea financial statements.
ACAS, OGA and UKSA 2018-19 to 2020-21
Delivery of contracted out financial statement audits in accordance with Practice Note 10 (PN 10): Audit of financial statements of public sector bodies in the United Kingdom (2016
Temporary audit staff 2019
ESPO 3S_18 Strategic HR Services
Asset valuation service 2018
The National Audit Office (NAO) requires a supplier to provide an asset valuation service for the financial statements of the NAO under the requirements of the HM Treasury Financia
National maritime museum 2018-19
Completion of Planning, Interim Audit and Final Audit for the National Maritime Museum's 2018-19 Financial Statements including Grant Thornton attendance at client meetings
Audit of charity commission 2018-19
Audit of the Charity Commission and the Official Custodian for Charities Full provision of all audit work to support the audit opinion of both accounts including all ISA compliant