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AO

Audit One

Business services
SME

Audit One is a not-for-profit NHS consortium that delivers high-quality internal audit, counter fraud, and consultancy services. They operate across the UK, focusing on adding value to their clients and members.

audit-one.co.uk ↗

Summary from the supplier’s website — unverified

Compare peers
Awarded
£10.1m
Live
2
Buyers
14
12m
£138k
At a glance
  • Quick answer
Profile
  • Social value
  • ESG & policies
  • Capabilities6
  • Buyer references
  • Accreditations
Track record · verified
  • KPI performance
  • Contracts2 / 15
  • Top buyers14
  • Category mix
  • Geography
  • Peers5
Trust & risk
  • Red flags0
  • Compliance
  • Modifications
  • News
Company
  • Companies House
  • Financial
  • Org tree
Quick answer — Audit OneUpdated 20 Jul 2026

At a glance · for buyers and watchdogs

Audit One has won £10.1m across 14 public-sector buyers, with 2 live contracts.

Why: top buyer NHS SHARED BUSINESS SERVICES LIMITED at 49% · 100% in Business services · 0 active risk flags · 0 modifications.

Decision signals
0Active red flags
No CH recordCompany status
2 of 15Live contracts
49%Top-buyer concentration
100%Category exposure
0Contract modifications
If you're a buyer:CapabilitiesReferencesKPIComplianceWatchdog?FlagsModificationsConcentrationNews

Social value · 1/5

Commitments mapped to the Government Social Value Model themes. Each is tagged self-reported or from the website.

◐ From supplier website
JobsNo commitment stated✓
SkillsNo commitment stated✓
EnvironmentNo commitment stated✓
Tackling inequalityNo commitment stated✓
Community1 commitment ↗✓
Community · 1
  • WebsiteSocial Value CommitmentAuditOne is committed to delivering measurable social value by promoting health equity, sustainability, innovation and community well-being.

Extracted automatically from audit-one.co.uk on Jul 2026. Not independently verified — treat as the supplier’s own marketing claims.

ESG & policies vault · 0/5

Key governance & sustainability policies. Published documents link out; missing ones are greyed.

↔ Cross-checked
Net-zero planNot provided✓
Modern slavery statementNot provided✓
EDI policyNot provided✓
Anti-briberyNot provided✓
Data protectionNot provided✓

Capabilities

What this supplier does, where they sit, who they sell to.

◐ From website & notices
Sectors served · 1/8
Central government✓
Local government✓
NHS & health✓
Housing✓
Utilities & energy✓
Financial services✓
Education✓
Defence✓
Services · 5
Internal AuditOur externally accredited internal audit service delivers added value, risk-based assurance for our clients. ↗Counter FraudWe are experienced in delivering risk-based counter fraud work plans including prevention, detection and investigations. ↗Internal Audit (Digital)Our digital assurance services include cyber security, project assurance and system application controls. ↗WorkforceOneWorkforceOne offers a wide range of support services in workforce management and investigations. ↗ConsultOneOur expert consultants offer practical advice and solutions to support our clients' needs. ↗
Frameworks & DPS · 6 from notices
  • Internal and External Audit, Counter Fraud and Financial Assurance ServicesNHS SHARED BUSINESS SERVICES LIMITED · £5.0m
  • Audit Services for Health (SBS10517)N H S Shared Business Services · £4.5m
  • Data Sharing Audit - Re-ProcurementNHS Digital · £150k
  • IM&T Internal Audit ServicesCounty Durham and Darlington NHS Foundation Trust · £92k
  • Well Led Governance ReviewCOUNTESS OF CHESTER HOSPITAL NHS FOUNDATION TRUST · £38k
  • Internal Audit Provision 2020-2021Minerva Learning Trust · £8k

Extracted automatically from audit-one.co.uk on Jul 2026. Not independently verified — treat as the supplier’s own marketing claims.

Case studies

Delivery stories the supplier has published, with sector and outcome.

⚑ Self-reported
—

No case studies yet

Once a claimed supplier publishes delivery stories — the buyer, the sector, what was delivered and the outcome — they appear here.

Buyer references

Named public-sector contacts who have agreed to act as a reference.

✓ Confirmed by buyer
—

No buyer references yet

Public-sector buyers can confirm they'll act as a reference for this supplier. Confirmed references — with the contract they relate to — show here.

Accreditations & memberships

Independently issued. Verification dates cross-checked against issuer registers.

↔ Cross-checked
—

No accreditations recorded

B-Corp, ISO, Cyber Essentials, Living Wage and similar credentials appear here once added by a claimed supplier and cross-checked against the issuing register.

KPI performance

Delivery, budget and satisfaction scores reported quarterly by buyers.

✓ Verified
84

No verified KPI scores yet

Once buyers report contract KPIs — delivery on time, on budget, satisfaction, adoption and accessibility — a weighted grade and breakdown appear here.

Contracts · 2 live · 13 historic

Pulled from Contracts Finder & Find a Tender. Most recent first.

✓ From notices
TitleBuyerCPVAwardedValueTermStatus
Audit Services for Health (SBS10517)
N H S Shared Business Services7920000009 Sept 2025£4.5m4 yrsLive
CA12942 - Invitation to Tender for the Provision of Well Led Governance Review
West Suffolk NHS Foundation Trust7921200001 Nov 2023£40k6 moClosed
CA11616 - Well Led Review
Avon and Wiltshire Mental Health Partnership NHS trust7931300025 May 2023—2 moClosed
CA10543 - UCLH-3579 - Well-led Review
University College London Hospitals NHS Foundation Trust7941110027 Jun 2022£37k7 moClosed
Data Sharing Audit - Re-Procurement
NHS Digital7921200001 Jan 2022£150k12 moClosed
Well Led Governance Review
COUNTESS OF CHESTER HOSPITAL NHS FOUNDATION TRUST7921200009 Dec 2021£38k3 moClosed
Solent NHS Trust Well Led Development Review
Solent NHS Trust7940000001 Sept 2021£40k3 moClosed
CA7602 - Audit Services
CRESCENT PURCHASING LIMITED7921220005 Dec 2020£367.923 yrsClosed
Internal and External Audit, Counter Fraud and Financial Assurance Services
NHS SHARED BUSINESS SERVICES LIMITED7222500016 Nov 2020£5.0m4 yrsClosed
Internal Audit Provision 2020-2021
Minerva Learning Trust7921220001 Nov 2020£8k12 moClosed
Total live value £4.5m · mean award £675k1–10 of 15

Top buyers · 14 buyers · top 3 = 96%

Share of awarded value. Concentration fires above 40% for any single buyer.

✓ From notices
1
NHS SHARED BUSINESS SERVICES LIMITED
2 contracts
49%
since 2020
2
N H S Shared Business Services
1 contract
45%
since 2025
3
NHS Digital
1 contract
1%
since 2022
4
County Durham and Darlington NHS Foundation Trust
1 contract
1%
since 2019
5
Hull City Council
1 contract
1%
since 2018
6
Stockton Riverside College
1 contract
1%
since 2019
7
West Suffolk NHS Foundation Trust
1 contract
0%
since 2023
8
Solent NHS Trust
1 contract
0%
since 2021
9
COUNTESS OF CHESTER HOSPITAL NHS FOUNDATION TRUST
1 contract
0%
since 2021
10
University College London Hospitals NHS Foundation Trust
1 contract
0%
since 2023

Category mix

CPV-division share of last-12m awarded value. Single-category exposure: 100%.

✓ From notices
Business services79
100%
⚠ Concentration: 100% of recent awarded value sits in a single CPV division. A category-specific downturn would materially affect revenue.

Geography

Distribution of awarded value by buyer region.

✓ From notices
UK · schematic only
London3 contracts
92%
Yorkshire3 contracts
4%
North East1 contract
2%
Eastern1 contract
1%
South East1 contract
1%
North West2 contracts
1%
South West1 contract
0%
Region resolved for 54% of awarded value (by buyer postcode); the remainder lacks a usable address.

Peers

Suppliers with overlapping CPVs & buyers (last 24m). Audit One highlighted.

✓ From notices
SupplierSME?Awarded · 24mContracts
SS
SSCL
No£43.5m1
DE
Deloitte LLP
No£6.1m5
DL
DELOITTE LLP - FCA - LONDON EC4A 3BQ
No£5.0m1
MA
Mace Limited
Yes£4.3m1
GT
Grant Thornton UK LLP
No£2.6m1
AO
Audit One
Yes£138k—
Compare peers →

Red flags · 0 active

Automated scan of Companies House status, charges and insolvency records.

✓ Verified
No Companies House record linked — automated risk checks unavailable.

Compliance scorecard

Derived from Companies House filings — not a full supplier-assurance check.

↔ Cross-checked
No Companies House record linked — statutory compliance checks unavailable.

Modifications

Variations to awarded contracts logged under Procurement Act 2023 s.74.

✓ From notices
±

No modifications recorded

No published contract variations for this supplier. Modification notices appear here as they are issued under the Procurement Act 2023.

News mentions

UK trade press & nationals, matched to this supplier.

◰

No news mentions found

We haven't matched any recent UK press coverage to this supplier. Mentions appear here automatically as they're published.

Companies House

Registered details, directors and PSC.

✓ Live sync
🏛

No Companies House record linked

No Companies House number on file — this supplier may be overseas, a sole trader or a consortium.

Financial

Filed accounts from Companies House.

↔ From Cos House
£

No financial filings on record

Turnover, profit and headcount appear here once audited or micro-entity accounts are filed at Companies House.

Org tree

Group structure and ownership.

↔ From Cos House
—
— · this company

Independent. No parent company or subsidiaries recorded at Companies House for this entity.