Top suppliers
Top suppliers to National Audit Office
Top-five suppliers hold 78% of contract value — a concentrated market.
Procurement categories
What National Audit Office buys
Common Procurement Vocabulary (CPV) breakdown of contracts awarded over the reporting period.
66150000
6615000079210000
7921000079620000
7962000048210000
4821000048440000
4844000030210000
3021000072260000
7226000079930000
7993000072220000
7222000085140000
8514000079310000
7931000079630000
7963000031620000
3162000073110000
7311000009310000
0931000048450000
4845000072910000
7291000080420000
8042000072320000
7232000079340000
79340000Recent contracts
Latest National Audit Office contracts awarded
The most recently published award notices on Find a Tender and Contracts Finder.
CPT_24_48 General OH Services, EAP and Health Screening services
HEALTH PARTNERS GROUP LIMITED · 2026-06-10
£513K
EE Legal services
Equal Justice Solicitors · 2026-06-04
£12K
Success at School Apprentice Campaign 2026/2027
Success at School Ltd · 2026-06-03
£19K
CPT_26_11 - Huddle
Ideagen Technology Limited · 2026-06-02
£180K
Hosting Virtual Assessment Centres
TopScore Technologies Limited · 2026-05-08
£126K
Candidate Screening and Interviewing
Graduate Recruitment Bureau · 2026-05-08
£193K
Complexity Thinking Training
Cognitive Edge Ltd · 2026-05-08
£13K
CPT_26_16 Ideagen Pentana
IDEAGEN SOLUTIONS LIMITED · 2026-05-08
£101K
Laptop Chargeable Repairs - 2026/28
HP INC UK LIMITED · 2026-05-05
£15K
CPT_26_14 - SmartExporter 2026-27
CaseWare UK Ltd · 2026-05-05
£18K
CPT_26_06 Network Hardware Support
SPECIALIST COMPUTER CENTRES PLC · 2026-05-05
£200K
Vodafone backup Sims
VODAFONE LIMITED · 2026-05-04
£25K
HM Land Registry Review of GAD
GRANT THORNTON LIMITED · 2026-04-22
£100K
Case Management Solution
Node 4 Limited (was Tisski Limited) · 2026-04-15
£7.8M
Harmon.ie Subscription 2026/27
HARMON.IE UK LIMITED · 2026-04-14
£30K
Enders Analysis 2025-28
Enders Analysis Limited · 2026-04-13
£105K
CPT_25_48 Microsoft Enterprise Agreement
Phoenix Software Ltd · 2026-04-06
£6.6M
CPT_26_13 - Idea Licenses 2026/27
CaseWare UK Ltd · 2026-04-06
£75K
Rescue remote control software
GoTo Technologies UK Limited · 2026-04-03
£78K
Patch my PC software Renewal
Bechtle Direct Limited · 2026-04-03
£14K
BIDDING AGAINST THESE SUPPLIERS?
See your match score against National Audit Office
ENKII scores your business against live tenders and identifies the certifications you need to compete with the suppliers above.
Open opportunities
Open National Audit Office tenders
Tenders currently inviting bids. SMEs can respond via the official tender portal.
CPT_24_48 General OH Services, EAP and Health Screening
£500K
Local Public Audit Legal Services
£540K
Local Public Audit Legal Services
£540K
CPT_24_08 Audit Data Extraction and Analysis Automation services
CPT_23_11 External Audit services
CPT_23_11 External Audit services
Pipeline
Contracts expiring in the next 12 months
When these contracts end, National Audit Office typically re-tenders. SMEs preparing bids 3-6 months ahead win disproportionately often.
NIST Maturity Assessment
Expires: 2026-06-18
£28K
Microsoft365 Advice Services
Expires: 2026-06-19
£29K
Cisco Network support 2024
Expires: 2026-06-30
£50K
CPT_25_25 - Posit Connect and Package Manager 25/26
Expires: 2026-06-30
£78K
Extension of Sports Council for Northern Ireland Audits completed by NIAO
Expires: 2026-06-30
£171K
CPT_24_33 Internal Audit Apprenticeship
Expires: 2026-06-30
£9K
EE Legal services
Expires: 2026-06-30
£12K
Excel for Trainees 2025
Expires: 2026-07-01
£18K
Off-Site Records Storage
Expires: 2026-07-02
£6K
Removals Services to support the refurbishment of part of the NAO London office
Expires: 2026-07-17
£67K
Life insurance 2025
Expires: 2026-07-22
£45K
Annual Penetration Testing for NAO
Expires: 2026-07-30
£88K
Annual Penetration Testing for NAO
Expires: 2026-07-30
£81K
DocuSign 2023
Expires: 2026-07-31
£10K
TARGETJobs Graduate Campaign 2025/2026
Expires: 2026-07-31
£22K
GEN_22_112 Auditorium VC & TR1
Expires: 2026-08-19
£690K
eShot email marketing platform extension
Expires: 2026-08-21
£11K
Careers Fairs Logistical Support 2025/2026
Expires: 2026-08-31
£18K
Wireless access point support 2023
Expires: 2026-08-31
£45K
Candidate Ability Testing
Expires: 2026-09-03
£36K
Candidate Ability Testing
Expires: 2026-09-03
£36K
CPT_24_06 Supply of Monitors (London Office)
Expires: 2026-09-18
£189K
Gen_22_51 - General OH Services and Health Screening
Expires: 2026-09-30
£332K
National Medical Director's Clinical Fellow FY 25/26
Expires: 2026-10-02
£57K
People Survey 25/26 Extension
Expires: 2026-10-13
£41K
AQR Annual Inspection 2024-25 Audits
Expires: 2026-10-30
£330K
Provision of Office Supplies to the NAO
Expires: 2026-12-14
£45K
Exit questionnaire
Expires: 2026-12-15
£13K
Replacement of old UPS System and installation of new UPS System
Expires: 2026-12-22
£47K
Upgrade of Fusion Network Switches
Expires: 2026-12-22
£50K
CPT_23_64 Provision of OneTrust Privacy Management software and support
Expires: 2027-01-07
£110K
Executive Team Leadership Development
Expires: 2027-01-25
£13K
Cabinet Office Government Campus Learning Framework - Project Management Course
Expires: 2027-02-01
£19K
Sharegate Subscription 2026/27
Expires: 2027-02-04
£12K
DS Operations team Service design support
Expires: 2027-02-16
£120K
GEN_22_59 Travel Management System
Expires: 2027-02-22
£2.5M
CPT_23_58 Net Zero Advisory service
Expires: 2027-02-28
£78K
GEN_21_48_Online_Auditing_and_Accounting_Information_
Expires: 2027-02-28
£330K
HMRC Trust Statement Legal Provisions Audit - PWC
Expires: 2027-02-28
£70K
GEN_22_52 Specialist Advice for Neurodiversity Services and Access Technology Consultancy Services
Expires: 2027-02-28
£528K
Harmon.ie Subscription
Expires: 2027-03-25
£15K
Rescue remote control software
Expires: 2027-03-30
£78K
Microsoft Premier support
Expires: 2027-03-31
£435K
CPT_25_26 Level 4 Data Analyst Apprenticeship
Expires: 2027-03-31
£30K
Redgate Toolkit Purchase 2024
Expires: 2027-03-31
£15K
CPT_24_24 Microsoft Unified Enterprise Support
Expires: 2027-03-31
£351K
CPT_26_14 - SmartExporter 2026-27
Expires: 2027-03-31
£18K
CPT_26_13 - Idea Licenses 2026/27
Expires: 2027-03-31
£75K
Harmon.ie Subscription 2026/27
Expires: 2027-03-31
£30K
Market Data Software Subscription
Expires: 2027-03-31
£592K
Market analysis
Bidding into National Audit Office — what to expect
Supplier concentration and timing patterns that shape SME bid strategy.
78%
Top-5 supplier share
31d
Avg response window
31d
Median response window
27mo
Avg contract duration
Frequently asked
Common questions about selling to National Audit Office
How much does National Audit Office spend on procurement?
National Audit Office awarded 293 contracts totalling £310.4M between 2023-06-17 and 2026-06-17, working with 213 unique suppliers. Average contract value is £1.1M.
Who are National Audit Office's top suppliers?
The largest suppliers to National Audit Office by total award value are FINANCIALFORCE.COM UK BRANCH, FORVIS MAZARS LLP, Allen Lane Limited. The top five suppliers together hold 78% of contract value.
What does National Audit Office buy from suppliers?
National Audit Office's procurement is concentrated in 66150000, 79210000, 79620000, alongside specialist categories. See the full CPV breakdown below.
How can my business bid for National Audit Office contracts?
National Audit Office publishes open tenders on Find a Tender and Contracts Finder. ENKII matches your business against live tenders, identifies certifications you'll need, and surfaces frameworks worth applying to. Free Readiness Score in 3 minutes.
What's the typical response window for National Audit Office tenders?
National Audit Office typically gives suppliers a median of 31 days to respond (average 31 days). Standard contract duration is around 27 months.
Continue reading
Related ENKII resources
GUIDE
PQQ & Selection Questionnaire — Procurement Act 2023
How UK central-government departments evaluate suppliers at the pre-qualification stage.
GUIDE
Cyber Essentials — for government contracts
Most central-government contracts handling personal data require this certification.
SECTOR
UK Government IT Services
G-Cloud, DOS, Crown Commercial frameworks. Software + consultancy is National Audit Office's largest spend area.
INDEX
All UK public-sector buyers
Browse procurement profiles for every UK government department and major buyer.
Sources & methodology
How this profile is compiled
Analysed by ENKII · Updated 2026-06-17
This profile aggregates public-record procurement data published by the UK Government under the Open Government Licence v3.0. ENKII fetches, deduplicates, and aggregates source records; we don't edit the underlying facts.
Source portals
- · Find a Tender (find-tender.service.gov.uk)
- · Contracts Finder
- · Spend Network
Source records remain subject to Open Government Licence v3.0 attribution. ENKII doesn't warrant accuracy beyond the source portals' own publication.