GDPR Audit Companies in the UK: Guide to Providers and Compliance
AC
Acumon Chartered Accountants·15 min read
Demonstrating compliance with UK GDPR requires more than documented policies. Organisations are increasingly expected to show that their data protection controls, governance arrangements and information handling processes operate effectively in practice.
The UK is home to a wide range of firms providing GDPR audit services, from specialist privacy consultancies and legal advisors to organisations offering broader risk, cyber security and governance support. Each brings different expertise, service models and sector experience.
This guide highlights a selection of GDPR audit service providers operating across the UK. Rather than ranking firms, the aim is to provide practical context, outlining the types of services they offer, the organisations they typically support and the areas where they have particular experience. Whether you're reviewing existing compliance arrangements or seeking independent assurance, this overview is designed to help inform your search for a provider aligned with your organisation's governance and regulatory requirements.
Acumon
Acumon is a UK firm of chartered accountants and advisors providing GDPR audit services to companies and organisations across the UK.
The firm works with organisations ranging from growing owner-managed businesses through to larger corporate groups operating across the UK and internationally. GDPR audit services are designed to support governance, risk management and compliance with data protection requirements.
Acumon provides GDPR audit services alongside risk management, governance, internal audit and technology assurance support. Services are delivered through a structured approach designed to strengthen governance frameworks, assess control environments and support ongoing regulatory compliance.
Acumon holds a Public Interest Entity (PIE) audit licence, enabling the firm to support organisations subject to enhanced regulatory oversight in the United Kingdom. In addition to its UK statutory audit registration, the firm also maintains audit licences in the Cayman Islands, British Virgin Islands (BVI), Jersey and Isle of Man, supporting clients with international structures and cross-border reporting requirements.
Organisations that process personal data are expected to maintain appropriate governance, controls and compliance procedures. GDPR audits can help businesses review existing processes, identify areas for improvement and strengthen their approach to data protection and regulatory compliance.
Acumon works with business owners, finance teams, management teams and governance professionals to support GDPR audits while helping organisations strengthen risk management, governance arrangements and internal controls.
GDPR Audit Capabilities
Acumon provides GDPR audit services across a wide range of organisations.
These include:
UK companies and corporate groups
owner-managed businesses and growing companies
regulated organisations and Public Interest Entities (PIEs)
organisations with established governance frameworks
finance teams and management teams
businesses strengthening compliance and internal controls
GDPR audit engagements are typically led by experienced professionals with direct involvement throughout the engagement.
Regulatory Licences and Registrations
Acumon holds several audit registrations that enable it to support organisations operating across multiple jurisdictions.
These include:
UK statutory audit registration
Public Interest Entity (PIE) audit licence
Jersey audit licence
Isle of Man audit licence
Cayman Islands audit licence
British Virgin Islands audit licence
These registrations allow the firm to support organisations operating across both the UK and key international financial centres.
Core Services
In addition to GDPR audit services, Acumon provides a range of services that support governance, risk management and business assurance.
These include:
risk management and governance
internal audit and technology assurance
statutory external audit
group and subsidiary audits
Public Interest Entity (PIE) audits
charity and not-for-profit audit
business advisory and compliance support
company secretarial and corporate governance support
GDPR audit work is often delivered alongside discussions with management regarding governance frameworks, internal controls, risk management and regulatory compliance.
Many organisations seek GDPR audit support as regulatory expectations evolve, governance frameworks develop or internal control environments are reviewed.
Acumon works with businesses that are:
strengthening governance arrangements
improving regulatory compliance
enhancing internal controls
supporting business resilience
strengthening risk management
Early engagement can help ensure that GDPR audit activities remain aligned with governance objectives, regulatory requirements and effective risk management.
Address: 1-2 Craven Road, Ealing, London, W5 2UA, UK
Phone: 020 8567 3451
WorkNest
WorkNest includes GDPR audit services as part of its wider cyber resilience and data protection offering. Their audits are designed for organisations that already have a GDPR framework in place and want an independent review of how well their policies, procedures and day-to-day practices align with UK GDPR requirements. The process looks beyond documentation to assess how data protection measures are applied across the organisation and where improvements may be needed.
The audit follows a structured approach that includes an initial discussion, a review of relevant documentation, an assessment of existing controls and a detailed report outlining the findings. Alongside identifying compliance gaps, the review considers practical steps that can help strengthen governance, reduce data protection risks and support ongoing compliance. A follow-up consultation gives organisations an opportunity to discuss the findings and plan the next stages of their compliance programme.
Key Highlights:
GDPR audits for organisations with existing compliance frameworks
Independent review of policies, procedures and working practices
Assessment focused on accountability and regulatory obligations
Structured audit process with documented findings
Review of compliance risks and control weaknesses
Follow-up consultation to discuss recommendations
Part of a broader cyber resilience and data protection service
Address: Woodhouse, Church Lane, Aldford Chester CH3 6JD
Phone: 0345 226 8393
Data Protection People
Data Protection People focus on data protection audits as a core part of their privacy and compliance services. Their approach covers organisations at different stages of GDPR maturity, from high-level compliance reviews to detailed audits assessing how personal data is managed across the business. The scope of an audit can vary depending on the organisation's activities, regulatory environment and specific compliance objectives.
Audit work examines key areas of UK GDPR compliance, including governance, records management, data security, retention practices, supplier relationships and individual rights. Beyond identifying areas for improvement, their reviews are intended to give organisations a clearer understanding of current practices and support ongoing compliance through structured recommendations and tailored audit frameworks where required.
Key Highlights:
Dedicated focus on data protection and GDPR auditing
Audit options ranging from compliance reviews to full GDPR audits
Assessment of governance, operational processes and technical controls
Reviews aligned with UK GDPR and related legislation
Bespoke audit frameworks for different sectors and organisations
Support for AI governance and PECR compliance audits
Follow-up guidance to help organisations address audit findings
Address: The Tannery, 91 Kirkstall Rd, Leeds, LS3 1HS United Kingdom
Phone: 0113 869 1290
GDPR Auditing
GDPR Auditing specialises in privacy, data protection and compliance services, with GDPR audits forming a central part of its work. The consultancy supports organisations operating under both UK GDPR and EU GDPR, tailoring each audit to the way personal data is processed within the business rather than relying on a standard checklist. Its services are used by organisations of different sizes, including businesses with international operations.
Each engagement can include a gap analysis, a full compliance audit and support with remediation where required. The review considers how policies, procedures and operational practices align with data protection requirements, helping organisations understand where controls are working effectively and where additional attention may be needed. The consultancy also provides UK and EU representative services for organisations with cross-border data processing obligations.
Key Highlights:
Specialist consultancy focused on GDPR and data protection
Audits covering both UK GDPR and EU GDPR
Tailored audit approach based on organisational activities
Gap analysis alongside full GDPR compliance reviews
Support for organisations with international data processing
Direct involvement from senior consultants throughout the audit process
Address: 47 The Lanes, Over, Cambridge, United Kingdom, CB24 5NQ
Phone: +44(0)203 488 3050
Westbrook Data Protection Services
Westbrook Data Protection Services approaches GDPR audits as a practical review of how personal data is handled across an organisation. Its audit process focuses on day-to-day operations, examining whether documented policies reflect the way information is collected, shared, stored and retained in practice. The emphasis is on building a clear picture of current data protection arrangements rather than treating compliance as a one-off exercise.
Audit work typically explores governance, accountability, records management, supplier arrangements and the use of personal data across different business functions. The findings are intended to help organisations prioritise improvements, strengthen internal processes and maintain compliance as systems, technologies and working practices continue to evolve.
Key Highlights:
GDPR audits led by an experienced data protection legal professional
Practical assessment of operational data handling practices
Focus on governance, accountability and compliance processes
Reviews tailored to organisational structure and risk profile
Examination of documented procedures alongside day-to-day activities
Clarkslegal offers data protection compliance audits through collaboration with specialist data protection and cyber security partners. The service combines legal knowledge with technical expertise to examine how organisations manage personal data, identify areas of compliance risk and review whether existing policies and controls meet UK GDPR requirements.
Organisations can choose between different audit options depending on the level of assessment required, from an initial compliance health check to a broader review that includes cyber security considerations. Audit findings are supported by practical recommendations, with additional legal advice available where organisations need to update documentation, contracts or internal procedures following the review.
Key Highlights:
GDPR audit services supported by legal and cyber security specialists
Compliance reviews aligned with UK GDPR requirements
Audit packages for different levels of organisational maturity
Assessment of governance, controls and data handling practices
Integration of legal and technical expertise
Roadmaps to support compliance improvements
Additional assistance with privacy documentation and contracts
Address: 5th Floor, Thames Tower, Station Road, Reading, RG1 1LX
Phone: +44 118 958 5321
Evalian
Evalian includes GDPR audits within its wider data protection and cyber security services. Their audit process reviews how organisations manage personal data against UK GDPR, the Data Protection Act and PECR, combining interviews with key stakeholders, document reviews and an assessment of day-to-day data processing activities. The objective is to establish how existing controls operate in practice and identify any areas where compliance can be strengthened.
The engagement begins with a scoping exercise to define the scope of the review before moving into a structured gap analysis. Findings are presented in a detailed report that outlines assurance levels, areas of non-compliance and prioritised recommendations. Organisations can choose between one-off audits and ongoing support, depending on how they manage their compliance programme and internal governance.
Key Highlights:
GDPR audits aligned with UK GDPR, the Data Protection Act and PECR
Evidence-based audit methodology
Interviews combined with documentation reviews
On-site and remote audit options
Gap analysis with prioritised recommendations
Detailed compliance reporting and follow-up discussion
Address: West Lodge, Leylands Business Park, Colden Common, Hampshire, SO21 1TH
Phone: 03330 500 111
Data Privacy Advisory Service (DPAS)
Data Privacy Advisory Service (DPAS) offers GDPR audit services for organisations that want an independent review of their data protection arrangements under UK GDPR, EU GDPR and related legislation. Its audit process combines document reviews, staff interviews and an assessment of day-to-day practices to build a clear picture of how compliance is managed across the organisation. The review is designed to identify strengths, highlight areas that need attention and measure current performance against recognised privacy and security standards.
Each audit concludes with a detailed report and an action plan that organisations can use to prioritise improvements. The process can continue with remediation support where further changes are needed, making the audit part of a wider compliance programme instead of a one-off exercise. Alongside regulatory requirements, the assessment considers governance, organisational culture and emerging areas such as AI and information security.
Key Highlights:
GDPR audits covering UK GDPR, EU GDPR and the Data Protection Act 2018
Reviews aligned with PECR and recognised security standards
Assessment of documentation, processes and organisational practices
Staff interviews included as part of the audit process
Benchmarking and compliance scoring
Detailed audit report with prioritised action plan
Equas includes GDPR audits within a wider compliance and management systems offering, helping organisations review how personal data is collected, processed and protected. Its audit process looks at existing controls, data handling activities and the responsibilities of data controllers and processors, giving organisations a structured view of how their current arrangements align with GDPR requirements.
For businesses that need additional support, Equas combines audits with gap analysis, compliance projects and ongoing reviews. Its GDPR in a Box framework is designed to support organisations at different stages of compliance, from identifying weaknesses to maintaining established processes through periodic health checks and outsourced data protection support.
Key Highlights:
GDPR audits as part of a wider compliance framework
Reviews covering data handling processes and internal controls
Gap analysis linked to GDPR audit findings
Ongoing compliance health checks available
Audit approach supported by legal expertise
Tailored compliance programmes for different organisations
Address: Engine Rooms, Station Road, Chepstow, Monmouthshire, NP16 5PB
Phone: 01759 301000
The DPO
The DPO focuses on GDPR compliance support for both public and private sector organisations, with audits forming the starting point for many compliance projects. Its audit process examines existing policies, procedures and operational controls before identifying where changes may be needed to meet UK GDPR obligations. The findings are used to build a practical compliance plan based on the organisation's current position.
Beyond the initial review, organisations can continue with implementation support, ongoing monitoring or an outsourced Data Protection Officer service. The company also supports businesses operating across borders through designated representative services, making its offering relevant to organisations managing UK and EU data protection requirements.
Key Highlights:
GDPR audits forming part of wider compliance programmes
Gap analysis with prioritised action plans
Support for UK and international organisations
Ongoing GDPR assurance through outsourced DPO services
Compliance packages for organisations of different sizes
Designated Representative services for cross-border compliance
Address: Capital Tower, Greyfriars Road, Cardiff, CF10 3AZ, United Kingdom
Phone: + 44 (0)29 2166 0392
Boardroom Matters
Boardroom Matters carries out UK GDPR audits for organisations across the private, public and voluntary sectors. Its audit process combines preparation work with a review of existing documentation before moving into an on-site visit or remote assessment. The aim is to identify legal obligations, assess current compliance arrangements and highlight where improvements may be needed.
Following the review, organisations receive a written report that includes an executive summary, data flow analysis, DPIA findings and a practical action plan. Where documentation is incomplete or no longer reflects current requirements, support is available to update existing records or prepare new compliance documents. An optional follow-up audit can then be used to confirm that recommended actions have been implemented.
PDA Legal focuses on GDPR audits for law firms, helping legal practices review how personal data is managed across their business. The audit begins with a detailed assessment of existing policies, procedures and documentation before moving to an on-site review that examines how those controls operate in everyday practice. This two-stage approach gives firms a clearer understanding of their current compliance position and any areas that require attention.
The findings are brought together in a gap analysis report with practical recommendations that reflect the needs of legal organisations. Alongside GDPR audits, the firm supports wider compliance through training, consultancy and related auditing services, allowing practices to review different areas of regulatory and operational risk as part of a broader governance programme.
Key Highlights:
GDPR audits designed specifically for law firms
Two-stage audit combining desktop and on-site reviews
Independent gap analysis with practical recommendations
Assessment of policies, procedures and operational controls
Reviews tailored to the needs of individual legal practices
Fixed-fee audit approach where appropriate
Additional compliance support available after the audit
Address: First Floor, 23 Victoria Avenue, Harrogate, North Yorkshire, HG1 5RD
Phone: 01423 275365
Conclusion
Choosing a GDPR audit provider is not simply about comparing services. The right fit often depends on an organisation's size, the type of personal data it handles, its existing level of compliance and whether it needs a one-off audit or ongoing support. Some providers focus on independent compliance reviews, while others combine audits with consultancy, training or outsourced Data Protection Officer services.
This guide highlights a selection of GDPR audit providers operating in the UK to give a broad overview of the different approaches available. Reviewing the scope of each service, the audit methodology and any follow-up support can help organisations decide which option best matches their compliance objectives and internal resources. A well-planned GDPR audit does more than identify gaps - it provides a clearer understanding of current data protection practices and helps organisations prioritise the next steps towards stronger governance and ongoing compliance.
AC
Written by the Acumon team
Acumon is an ICAEW-registered firm of chartered accountants and registered auditors
based in London, with offices in Pitstone, Aylesbury and Bournemouth. Need advice on
anything covered here? Talk to us.
This practical guide provides an overview of companies offering GDPR audit services in Birmingham and the surrounding UK market. Rather than ranking companies, it reviews different organisations…
This practical guide looks at companies offering GDPR audit services in London, from larger multidisciplinary organisations to narrower data protection specialists. It is intended as an overview…
An internal audit function must be assessed by a qualified, independent assessor at least once every five years. That requirement is Standard 8.4 of the Global Internal Audit Standards, which…
Read article
Get in Touch
Ready for Accountants Who Move Your Business Forward?
Tell us what you need. Within one business day, a qualified accountant will be in touch to talk it through and give you a clear, fixed-fee quote — no obligation.
We use essential cookies to run this site, plus Google Analytics and Google Ads to
understand how visitors use it and measure our advertising — only with your consent. See our
Privacy Policy.
