Choosing the right partner for your statutory audit is an important decision for any UK company. This guide is not a ranking or comparison table – it’s a practical overview to help you understand your options. You’ll find many different companies offering statutory audit services across the UK: some are larger with broad experience, while others focus on specific sectors or types of businesses. All of them provide independent assurance that your financial statements give a true and fair view in line with the Companies Act 2006 and ISA UK. Understanding who these companies are and what they specialise in will help you choose the right partner for your needs.
Acumon
Acumon is a UK company of chartered accountants and registered auditors providing statutory audit services to companies, charities, and international corporate groups.
The company works with organisations ranging from growing owner-managed businesses and charities to larger corporate groups and regulated entities. Audit engagements are delivered in accordance with International Standards on Auditing (UK) using a structured risk-based approach. Acumon holds a Public Interest Entity (PIE) audit licence from the Financial Reporting Council. This allows the company to audit listed companies and other public interest entities subject to enhanced regulatory oversight in the UK. In addition to its UK registration, Acumon holds audit licences for Jersey and the Isle of Man. These enable the company to support international corporate groups with entities across multiple jurisdictions. Acumon works with finance teams and boards to deliver statutory audit requirements while supporting improvements in financial reporting processes, governance, and internal controls.
Audit Capabilities:
Acumon provides external audit services across a wide range of organisational structures and sectors.
These include:
- UK limited companies and corporate groups
- Public Interest Entities (PIEs) and regulated organisations
- UK subsidiaries of international groups
- Charities and not-for-profit organisations
- Owner-managed businesses approaching statutory audit thresholds
- Offshore holding companies and investment vehicles
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
Core Services:
In addition to statutory external audit, Acumon provides a range of services that support financial reporting and governance.
These include:
- Statutory audit services
- Group and subsidiary audits
- Public Interest Entity (PIE) audits
- Charity and not-for-profit audit
- Audit of international group structures
- Audit for regulated entities
Supporting Growing Organisations:
Many organisations initially encounter statutory audit requirements as they grow and exceed the audit exemption thresholds set out in the Companies Act.
Acumon works with businesses that are:
- Approaching their first statutory audit
- Preparing for external investment
- Expanding into international markets
- Operating within corporate group structures
Contact Information:
- Website: acumon.com
- Phone: 020 8567 3451
- Email: mail@acumon.com
- Address: 1-2 Craven Road, Ealing, London, W5 2UA, UK
PwC
PwC delivers statutory audit services to companies across the UK. The company works with businesses of different sizes and structures, helping them meet their regulatory reporting requirements under the Companies Act.
Their audit approach focuses on understanding the client’s operations and providing independent assurance on the financial statements. PwC supports both private companies and public interest entities through the audit process. They apply current auditing standards while maintaining regular communication during the engagement. The company emphasises consistency and technical knowledge in their audit delivery.
Key Highlights:
- Serves private and public companies
- Focus on financial reporting confidence
- Industry-specific audit experience
- Structured audit methodology
Services:
- Statutory audit of limited companies
- Audit of public interest entities
- Group audit engagements
- Audit of financial services companies
- Audit for consumer and industrial sectors
Deloitte
Deloitte provides statutory audit services to a wide range of companies operating in the UK. The company has significant experience with both private and listed entities.
Deloitte supports clients through the full audit cycle with an emphasis on quality and regulatory compliance. They adapt their approach to the complexity and scale of each business. Regular dialogue with management forms part of their standard process. The company maintains strong technical capabilities across different sectors.
Key Highlights:
- Experience with listed companies
- Quality-focused audit delivery
- Sector-adapted audit processes
- Regulatory compliance support
Services:
- Audit for large private companies
- Statutory audit for plc entities
- Audit of international group subsidiaries
- Financial reporting audit
- Industry-specific statutory audits
EY
EY offers statutory audit services to companies throughout the United Kingdom. The company works with organisations from various sectors and ownership structures.
Their audit work centres on delivering independent assurance in accordance with UK auditing standards. EY pays close attention to the specific circumstances of each company during the audit. They maintain ongoing contact with clients to ensure a smooth process. The company combines technical expertise with practical understanding of business environments.
Key Highlights:
- Broad sector coverage
- Independent assurance delivery
- Focus on auditing standards
- Client communication during audit
Services:
- Statutory audit engagements
- Audit of public interest entities
- Group financial statement audit
- Audit for technology and media companies
- Statutory audit for infrastructure businesses
KPMG
KPMG carries out statutory audit services for companies of different scales and types. The company supports businesses across multiple industries in meeting their audit obligations.
KPMG applies a quality-driven approach to help companies produce reliable financial reporting. They tailor the audit process to the nature of the client’s operations. Clear and timely communication is part of their standard way of working. The company focuses on technical accuracy and adherence to current standards.
Key Highlights:
- Serves private enterprises
- Quality audit delivery
- Multi-industry audit experience
- Focus on financial reporting
Services:
- Statutory audit for private companies
- Audit for financial services sector
- Audit of consumer market companies
- Statutory audit for energy businesses
- Audit for technology companies
- Government and public sector audit
Grant Thornton
Grant Thornton delivers statutory audit services to companies across the UK. The company focuses particularly on the mid-market segment and works with growing businesses that need reliable independent assurance.
The audit teams pay attention to the specific operations and risks of each company. They maintain clear communication throughout the process to keep things straightforward. Grant Thornton applies current UK auditing standards while adapting the work to the size and nature of the business. Their approach aims to provide practical insight alongside the formal audit opinion.
Key Highlights:
- Strong presence in mid-market
- Clear client communication
- Adapted audit approach
- Focus on growing companies
Services:
- Audit for owner-managed businesses
- Statutory audit of limited companies
- Group audit work
- Audit in consumer and industrial sectors
- Assurance for professional services firms
BDO
BDO provides statutory audit services to a variety of companies in the UK. The company is often chosen by medium-sized businesses and SMEs that value a responsive audit process.
BDO works closely with management to understand the business before starting detailed testing. They combine technical knowledge with an understanding of real-world operations. The company ensures the audit meets all regulatory requirements under the Companies Act. Regular updates help clients stay informed during the engagement.
Key Highlights:
- Experience with medium-sized companies
- Responsive audit process
- Practical understanding of operations
- Regulatory compliance focus
Services:
- Statutory audit for SMEs
- Audit of private limited companies
- Audit for family-owned businesses
- Sector-focused statutory audits
- Assurance for growth companies
RSM
RSM carries out statutory audit services mainly for companies in the mid-market. The company supports businesses that operate in dynamic and changing environments.
Their audit process starts with a good understanding of the client’s industry and internal controls. RSM delivers the required independent assurance while keeping disruption to daily operations low. They follow UK auditing standards consistently across engagements. The teams adjust their work according to the complexity of each company.
Key Highlights:
- Mid-market specialisation
- Industry-aware audit approach
- Low disruption focus
- Consistent standards application
Services:
- Audit for mid-sized private companies
- Statutory audit engagements
- Group subsidiary audits
- Audit in technology and services sectors
- Assurance for manufacturing businesses
- Audit for retail companies
Forvis Mazars
Forvis Mazars offers statutory audit services to companies in the UK as part of its international network. The company works with organisations that have both UK and cross-border activities.
The audit approach combines local UK knowledge with awareness of international reporting needs. Forvis Mazars maintains regular dialogue with clients to address questions during the process. They apply relevant UK auditing standards and focus on delivering a clear audit opinion. The company structures its work to suit different company sizes and sectors.
Key Highlights:
- International network support
- Local UK audit delivery
- Cross-border awareness
- Clear audit communication
Services:
- Statutory audit for UK companies
- Audit of international group subsidiaries
- Assurance for listed entities
- Audit in financial services
- Statutory audit for real estate businesses
- Audit for professional services
Moore Kingston Smith
Moore Kingston Smith offers statutory audit services to companies based mainly in London and the surrounding area. The company supports mid-market businesses with their annual audit requirements.
The audit teams take time to understand each company’s activities and internal controls. Moore Kingston Smith applies relevant UK auditing standards throughout the engagement. They maintain open dialogue with clients to ensure the process runs smoothly. The focus remains on producing a clear and accurate audit opinion.
Key Highlights:
- London and south east focus
- Mid-market audit experience
- Understanding of client operations
- Clear audit dialogue
Services:
- Statutory audit for mid-market companies
- Audit of private limited companies
- Assurance for London-based businesses
- Audit for professional and service sectors
- Group subsidiary audit work
PKF Littlejohn
PKF Littlejohn carries out statutory audit services for companies in the UK. The company has particular experience with larger and more complex organisations, including those listed on AIM.
PKF Littlejohn concentrates on technical and fast-moving areas where detailed audit knowledge is important. The audit process includes thorough assessment of financial statements and related disclosures. The company works in London, Leeds and Manchester to serve its clients. Clear reporting forms a standard part of every engagement.
Key Highlights:
- Focus on complex audit clients
- Experience with AIM-listed companies
- Technical audit capability
- Multi-city presence
Services:
- Statutory audit for listed entities
- Audit of complex private companies
- Assurance for high-profile businesses
- Audit in technical and regulated sectors
- Statutory audit for fast-moving industries
- Group audit engagements
Crowe UK
Crowe UK provides statutory audit services to companies across the UK. The company supports organisations with their annual audit requirements through a structured and professional process.
The audit teams work to understand the business context and apply relevant UK auditing standards. Crowe UK maintains regular communication with clients during the engagement. The approach focuses on delivering independent assurance on the financial statements. They adapt the work to the nature and complexity of each company while keeping the process clear.
Key Highlights:
- Structured audit process
- Regular client communication
- Independent assurance focus
- Standards-based delivery
Services:
- Statutory audit for private companies
- Audit of limited companies
- Group audit support
- Assurance for owner-managed businesses
- Audit in specialist sectors
Saffery
Saffery offers statutory audit and assurance services to companies in the UK. The company has built particular experience working with clients in selected specialist sectors.
Saffery places strong emphasis on sector knowledge when carrying out audits. This is especially evident in their work with charities, real estate businesses, and landed estates. The firm also supports owner-managed companies as well as not-for-profit organisations. Their audit process includes thorough planning and detailed evidence gathering to support a clear audit opinion. Saffery ensures full compliance with current UK statutory requirements throughout every engagement.
Key Highlights:
- Sector-specific audit knowledge
- Strong focus on charities
- Expertise in real estate
- Experience with landed estates
- Support for not-for-profits
- Thorough planning approach
Services:
- Statutory audit for charities
- Audit for landed estates and rural businesses
- Audit of real estate companies
- Statutory audit for not-for-profit entities
- Audit for owner-managed businesses
- Audit of financial services companies
- Assurance for professional practices
Haines Watts
Haines Watts carries out statutory audit services for companies in the UK. The company supports businesses with their regulatory audit obligations.
The audit work includes a review of financial operations and identification of business risks. Haines Watts provides suggestions on improvements and best practice where relevant. The process aims to give management a clearer view of the financial position. Auditors maintain a practical approach while meeting all statutory standards.
Key Highlights:
- Review of financial operations
- Risk identification support
- Practical audit suggestions
- Regulatory compliance focus
Services:
- Statutory audit engagements
- Audit for private limited companies
- Assurance for business risk review
- Audit of owner-managed companies
UHY Hacker Young
UHY Hacker Young delivers statutory audit services to companies throughout the UK. The company operates as part of an international network while focusing on UK client needs.
The audit approach combines local knowledge with awareness of broader reporting requirements. UHY Hacker Young works with businesses of different sizes and structures. They follow UK auditing standards and maintain consistent communication during the process. The company structures its work to deliver a clear independent opinion.
Key Highlights:
- UK audit delivery
- International network connection
- Consistent communication
- Standards compliance
Services:
- Statutory audit for UK companies
- Audit of private businesses
- Group audit elements
- Assurance for mid-sized companies
- Audit in varied industry sectors
Conclusion
Choosing the right company for statutory audit services depends on several practical factors. These include the size of your business, the sector you operate in, the maturity of your internal processes, and any specific regulatory requirements you need to meet.
Some companies offer a broad, integrated approach, while others focus on narrower specialisation and deeper sector knowledge. Both can deliver effective results when they match your particular situation.
The right partner delivers independent assurance and practical steps to reduce risks and support resilience.
This guide has aimed to provide neutral context so you can compare options more clearly and find a company that fits your needs. Ultimately, the decision comes down to which audit team you feel confident will handle your statutory requirements with care and consistency.
