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Audit services

ICAEW Registered Audit Firm London

We're an ICAEW registered audit firm. Our company audits support your organisation's compliance with UK legislation and regulatory requirements.

Why clients choose our registered audit team

Audit support that is responsive, senior-led and built around deadlines and stakeholder expectations.

Registered Audit

Registered Audit Services

We are an ICAEW registered audit firm providing comprehensive audit services to businesses across the UK, Jersey, and the Isle of Man. Our registered audit services ensure your compliance with UK legislation and regulatory requirements, with full regulatory authorisations across multiple jurisdictions.

Regulatory Authorisations

Acumon holds comprehensive regulatory authorisations enabling us to conduct audits across multiple jurisdictions:

  • ICAEW-Registered Audit Practice: Registered with the Institute of Chartered Accountants in England and Wales for UK audit services
  • FRC Authorisation: Authorised by the UK Financial Reporting Council (FRC) for Public Interest Entity (PIE) audits
  • Jersey Recognised Auditor: Authorised to conduct audits in Jersey, enabling us to serve Jersey-based companies and entities
  • Isle of Man Recognised Auditor: Authorised to conduct audits in the Isle of Man, enabling us to serve Isle of Man-based companies and entities

Our Registered Audit Capabilities

  • ICAEW registered audit firm with full regulatory compliance
  • FRC-authorised for Public Interest Entity (PIE) audits
  • Jersey and Isle of Man audit authorisations for cross-jurisdictional services
  • Audits for organisations with UK turnover of £1m‑£500m
  • Expertise in PLCs, limited companies, partnerships and LLPs
  • Charity audit services compliant with Charity SORP
  • Audits of UK subsidiaries of international groups
  • Cross-jurisdictional audit services for Jersey and Isle of Man entities

Why Choose Our Registered Audit Services

  • Quick and easy access to key audit staff and the information you need
  • High audit staff availability to meet tight deadlines
  • Weekly catch‑up meetings for open and clear communication
  • Access to senior and technical audit team members at all times

Audit Compliance

UK Audit Firm Regulatory Compliance

We are regulated by the ICAEW and the Financial Reporting Council (FRC). When required, our audits are fully compliant with the comprehensive UK regulatory framework, ensuring your organisation meets all statutory and regulatory obligations.

Regulatory Framework Compliance

Our audit engagements are conducted in strict adherence to the following regulatory and professional standards:

  • Companies Act 2006: Full compliance with statutory audit requirements
  • Financial Reporting Standards: FRS 102, 102 Section 1A, 103, 104, 105 (GAAP is FRS 102)
  • International Financial Reporting Standards: IFRS and FRS 101
  • International Auditing Standards: IAS compliance
  • Charity Statement of Recommended Practice: Charity SORP compliance
  • International Standard on Auditing: ISA 315 / 600 / 700 / 800
  • System and Organization Controls: SOC 1 and SOC 2 Reporting
  • International Standards of Quality Management: ISQM 1 and 2
  • Offshore Regulatory Licences: Jersey and Isle of Man regulated audit licences

Regulatory Oversight

As a registered audit firm, we operate under the direct oversight of:

  • Institute of Chartered Accountants in England and Wales (ICAEW): Primary regulatory body
  • Financial Reporting Council (FRC): Authorised for Public Interest Entity (PIE) audits
  • UK Financial Conduct Authority (FCA): Exempt professional firm status

Quality Management

Our compliance framework is underpinned by robust quality management systems that ensure consistent delivery of high-quality audit services. This includes regular internal quality reviews, external regulatory inspections, and continuous professional development for all audit personnel.

Audit Sector Experience

Audit Sector Experience

As an experienced London audit firm, we bring extensive sector-specific expertise gained from conducting quality audits across diverse industries. Our deep understanding of sector-specific regulatory requirements, accounting standards, and operational complexities enables us to deliver more efficient audits that reduce your compliance burden and associated costs.

Comprehensive Sector Coverage

Our audit experience spans companies, partnerships, LLPs, UK subsidiaries of overseas companies, and charities and not-for-profit organisations. This breadth of experience allows us to leverage sector-specific knowledge to streamline audit processes and identify efficiencies.

UK Audit Experience By Sector

  • Accommodation
  • Arts
  • Banking
  • Business Services
  • Charities
  • Communications
  • Construction
  • Consumer Goods
  • Defence
  • Education
  • Energy
  • Engineering
  • FCA Regulated Firms
  • Finance
  • Food
  • Foreign-Owned Subsidiaries
  • Government
  • Health and Social Care
  • Hospitality
  • IT
  • Leisure
  • Lenders
  • Life Sciences
  • Manufacturing
  • Marketing
  • Media
  • Medical
  • Mining
  • Not for Profits
  • Pensions
  • Pharma
  • Power
  • Professional Services
  • Property / Real Estate
  • Recreation
  • Restaurants, Pubs and Bars
  • Retail and Wholesale
  • Scientific
  • Software
  • Technology
  • Telecoms
  • Transport, Storage and Logistics
  • Travel / Travel Tech / ATOL
  • Utilities

Strategic Advantage

Our industry-specific audit expertise directly results in lower audit workload and costs for your organisation. By understanding the nuances of your industry, we can focus our testing on areas of highest risk and regulatory significance, avoiding unnecessary procedures while maintaining the highest standards of audit quality.

Accounts/ERP Packages

Accounts/ERP Packages

Our audit team has extensive experience working with a wide range of accounting and ERP systems, enabling efficient and effective audit processes regardless of your technology platform.

Supported Systems

  • Enterprise ERP Systems: SAP, Oracle, Microsoft Dynamics, Sage X3
  • Mid-Market Solutions: Sage 200, Sage 50, QuickBooks, Xero
  • Cloud-Based Platforms: Xero, QuickBooks Online, Sage Business Cloud
  • Specialist Systems: Industry-specific accounting and ERP solutions

Digital Audit Capabilities

  • Our specialist client audit portal for seamless information sharing
  • Inflo digital audit platform for advanced data analytics
  • General ledger drill‑downs and transaction testing
  • Automated data extraction and analysis
  • Real-time collaboration and query tracking

System Integration

We work efficiently with your existing systems, minimising disruption to your operations while ensuring comprehensive audit coverage. Our team can extract and analyse data from virtually any accounting or ERP system.

Audit Types

Audit Types

We provide a comprehensive range of audit services tailored to different organisational needs and regulatory requirements.

Statutory Audits

  • Company audits for PLCs and limited companies
  • Partnership and LLP audits
  • Group Audits : Specialist knowledge and experience in dealing with international groups
  • Group audits for international subsidiaries : External audits for UK subsidiaries of overseas companies, often with revenues below £2m
  • Charity audits compliant with Charity SORP

Specialist Audits

  • PIE Audits : Public Interest Entity audits with FRC authorisation
  • FCA-Regulated Audits: Financial services entity audits
  • CASS Audits : Client Asset Sourcebook (CASS) 5 and CASS 7 audits for investment firms holding client money and assets
  • Complex Financial Instruments: Entities holding complex financial instruments
  • Securitisation Vehicles: Specialised securitisation audits
  • VCT Audits: Venture Capital Trust audits
  • Forensic Audits : Investigative audits for fraud, financial discrepancies, and financial misconduct
  • Reporting Accountant Services : Independent reports and certifications for financial transactions and regulatory compliance

Regulatory Audits

  • SRA Audits : Solicitors Regulation Authority (SRA) audits for law firms and solicitors' practices, ensuring compliance with SRA Accounts Rules and regulatory requirements
  • Grant Audits : Grant audit services ensuring compliance with grant funding conditions, expenditure verification, and reporting requirements for grant recipients
  • Pension Scheme Audits : Comprehensive audits for occupational pension schemes, ensuring compliance with Pensions Act requirements
  • Gambling operator audits
  • Investment entity audits
  • Bank audits
  • Other highly regulated sector audits

Jurisdictional Audits

Audit Scope

We conduct audits for organisations with UK turnover ranging from £1m to £500m, providing scalable audit solutions that match your organisation's size and complexity.

Registered Audit Firm

Registered Audit Firm

We are a leading firm of Chartered Accountants and registered auditors. Our high-quality audits are designed to ensure your compliance with UK legislation while providing strategic insights that support your financial decision-making.

Regulatory Authorisations

Acumon Financial Management Ltd (trading as Acumon Chartered Accountants) maintains full regulatory authorisations across multiple jurisdictions. Our regulatory status can be verified through the following bodies:

  • The Institute of Chartered Accountants in England and Wales (ICAEW): Registered audit firm
  • UK Register of Statutory Auditors: Search "Acumon Financial Management Ltd" for verification
  • UK's Financial Reporting Council (FRC): Authorised for Public Interest Entity (PIE) audits
  • The UK Financial Conduct Authority (FCA): Exempt professional firm status
  • Jersey Recognised Auditor: Authorised to conduct audits in Jersey
  • Isle of Man Recognised Auditor: Authorised to conduct audits in the Isle of Man

Firm Positioning

Acumon is positioned among the leading UK accountancy firms, supported by our client base, PIE audit licence, and consistent organic growth. Our position reflects our capability to serve large, complex organisations while maintaining the responsiveness and personal service expected from a mid-tier firm.

Additional Professional Accreditations

  • ICAEW Chartered Accountants
  • Accredited by the Institute of Chartered Accountants for England and Wales to administer probate

Why Choose Acumon

Our registered audit firm status, combined with our extensive sector experience and regulatory authorisations, positions us as a strategic audit partner for organisations seeking high-quality audit services with a commercial understanding of your business challenges.

Frequently Asked Questions

An ICAEW registered audit firm is an accountancy practice that has been registered with the Institute of Chartered Accountants in England and Wales (ICAEW) to conduct statutory audits. This registration ensures the firm meets strict professional standards, regulatory requirements, and has the necessary expertise to perform audits in compliance with UK legislation. Acumon is an ICAEW registered audit firm authorised to conduct audits across the UK, Jersey, and the Isle of Man.

Acumon provides comprehensive audit services including statutory audits for limited companies, Public Interest Entity (PIE) audits authorised by the Financial Reporting Council, charity audits compliant with Charity SORP, group audits for international groups, and audits for organisations with UK turnover ranging from £1m to £500m. We also conduct audits for PLCs, partnerships, LLPs, and UK subsidiaries of international groups.

The duration of an audit depends on the size and complexity of your organisation. A typical audit for a small to medium-sized company may take 4-8 weeks from planning to completion, while larger or more complex audits may take 8-12 weeks or longer. We work closely with you throughout the process to minimise disruption and ensure timely completion. Our digital portal and Inflo analytics platform help streamline the audit process and improve efficiency.

A Public Interest Entity (PIE) audit is required for certain organisations that are considered to be of public interest, such as listed companies, banks, insurance companies, and other entities specified by the Financial Reporting Council. Acumon is FRC-authorised to conduct PIE audits. If your organisation meets PIE criteria, you must use an FRC-authorised audit firm. We can help determine if your organisation requires a PIE audit and provide the necessary services.

To prepare for an audit, you should gather all relevant financial records including accounting records, bank statements, invoices, contracts, payroll records, and any supporting documentation. Ensure your accounting system is up to date and all transactions are properly recorded. Our team will provide a detailed list of required documents and work with you to ensure everything is ready. We also offer guidance on how to prepare your financial statements and supporting schedules.

Audit costs vary depending on the size and complexity of your organisation, the scope of work required, and the time involved. We provide transparent, fixed-fee quotes based on your specific circumstances. Factors that influence cost include company size, number of transactions, complexity of operations, and any special requirements. Contact us for a tailored quote based on your organisation's needs.

Yes, Acumon is authorised as a Jersey Recognised Auditor and an Isle of Man Recognised Auditor, enabling us to conduct audits in these jurisdictions. This makes us well-positioned to serve companies with operations across multiple jurisdictions and provides consistency in audit approach for international groups.

Next steps

Reach out to our team to discuss how our registered audit services can help ensure your compliance with UK legislation and regulatory requirements. Our experienced professionals will provide expert guidance tailored to your business needs.

Contact Us for Audit Services