Audit Readiness Companies in London: Firms and Services Guide (2026)
AC
Acumon Chartered Accountants·9 min read
This practical guide reviews companies offering audit readiness services in London for businesses preparing for statutory audits, first-time audits, complex year-end reviews, or periods of financial change. Rather than ranking audit readiness companies, the selection gives a neutral overview of businesses with different service models and areas of focus. It includes larger companies with broad accounting and advisory capabilities as well as narrower specialists focused on technical accounting, reconciliations, audit files, controls, and pre-audit preparation. The aim is to give readers useful context on who these companies serve, where their strengths lie, and which type of support may fit different audit-readiness needs.
Acumon
Acumon is a UK firm of chartered accountants and registered auditors providing audit readiness services to companies preparing for statutory, first-time, transaction-driven, and recurring external audits.
The firm works with organisations whose finance teams need to strengthen financial records and supporting documentation before audit fieldwork begins. Audit readiness engagements can cover businesses approaching statutory audit requirements, companies preparing for an audit following investment or acquisition activity, and organisations whose existing audits are regularly delayed by unreconciled balances, incomplete schedules, or repeated information requests.
Acumon’s audit readiness work focuses on preparing the underlying financial information that an external auditor will examine. This includes substantiating balance sheet balances, resolving suspense accounts and historic differences, reviewing accounting policies, documenting technical accounting positions, and assembling prepared-by-client schedules before fieldwork starts.
The firm also supports finance teams with accounting issues that commonly become more visible during first-time or complex audits, including revenue recognition, leases, deferred tax, fixed assets, share-based payments, accruals, prepayments, and provisions. Where appropriate, readiness work can identify accounting adjustments or documentation gaps before these become formal audit findings.
Independence is an important consideration when audit readiness and statutory audit services overlap. Acumon states that full-scope readiness work is generally undertaken for companies whose audit will be performed by another auditor. Where Acumon is appointed as the statutory auditor, readiness assistance is limited to work permitted by auditor independence requirements.
The firm has a London office in Ealing and supports companies across the UK, including subsidiaries and groups with international structures. Its wider audit capabilities include statutory, group, PIE, charity, regulated, and cross-jurisdictional engagements.
Audit Readiness Capabilities
Acumon provides pre-audit support across the financial records, documentation, and accounting areas that commonly affect audit fieldwork.
These include:
Balance Sheet Review And Substantiation
Bank, Debtor, Creditor, And Control Account Reconciliations
Suspense Account And Legacy Balance Resolution
Accounting Policy And Technical Position Documentation
Prepared-By-Client (PBC) Pack Preparation
Finance Team Preparation For Audit Fieldwork
Auditor Selection And Scoping Support
Transaction-Driven Audit Readiness For Investment, Sale, And Lending Requirements
The work is designed to address issues before external audit testing begins and to leave the finance team with clearer schedules and supporting evidence for the audit process.
Regulatory Licences and Registrations
Acumon holds audit registrations and authorisations that support its wider statutory and regulated audit work in the UK and selected international jurisdictions.
These include:
ICAEW Registered Audit Practice
FRC Authorisation For Public Interest Entity Audits
Jersey Recognised Auditor Status
Isle Of Man Recognised Auditor Status
These registrations are relevant where audit readiness sits within a broader reporting environment involving listed entities, regulated organisations, group structures, or entities operating across more than one jurisdiction.
Core Services
In addition to audit readiness, Acumon provides audit, accounting, risk, and financial reporting services that can support organisations before and around an external audit.
These include:
Statutory And External Audit
Group And Subsidiary Audits
Public Interest Entity Audits
Charity And Not-For-Profit Audits
FCA-Regulated And CASS Audits
Financial Reporting And Technical Accounting Support
Internal Audit And Governance Reviews
Risk And Compliance Support
Audit readiness may be particularly relevant when a company is:
Approaching Its First Statutory Audit
Preparing For External Investment Or Acquisition
Responding To Lender Audit Requirements
Experiencing Repeated Delays During Existing Audits
Dealing With Unreconciled Or Historic Balance Sheet Items
Preparing Financial Information Within A Group Structure
Starting the preparation process before fieldwork gives finance teams time to resolve accounting issues, organise supporting documents, and establish the schedules that the external auditor is likely to request.
Address: 1-2 Craven Road, Ealing, London, W5 2UA, UK
Forvis Mazars
Forvis Mazars provides audit readiness support within its UK accounting and outsourcing practice. Its published guidance covers both first-time audits and organisations trying to move away from a recurring year-end audit scramble.
The service can include assessing current readiness, identifying weaknesses in financial controls, reviewing accounting policies and documentation, resolving technical accounting questions and helping finance teams prepare information requested by external auditors. Interim finance support and audit liaison are available where an internal team does not have sufficient capacity to manage the process itself.
This makes the service relevant to companies that need broader finance-function support around an audit rather than simply preparation of statutory accounts.
Key Facts
Ideal for: Growing businesses, first-time audits and finance teams requiring additional capacity
Core services: Audit readiness, financial reporting, outsourcing and technical accounting support
Preparation areas: Controls, documentation, reconciliations, accounting policies and projected financial information
Audit coordination: Interim support and liaison with external auditors
Location: London and other UK offices
Contact Information
Website: www.forvismazars.com
Phone: +44 (0) 20 7063 4000
Address: 30 Old Bailey, London, EC4M 7AU, United Kingdom
Arkius Global offers audit support aimed at helping businesses organise their records and respond efficiently to statutory, internal and investor audits. Its London operation provides both preparatory work before fieldwork and support while an audit is underway.
Pre-audit work can include gathering and formatting financial documents, reconciling key accounts and cleaning up ledger discrepancies. Arkius also prepares supporting schedules covering areas such as fixed assets, debtors, creditors, accruals and prepayments.
During the audit, the company can liaise directly with auditors, coordinate outstanding requests and help manage timelines. Post-audit assistance includes processing adjustments and implementing recommendations arising from the audit.
Key Facts
Ideal for: Businesses needing operational support throughout an audit cycle
Core services: Pre-audit preparation, reconciliation, supporting schedules and auditor liaison
Preparation areas: Ledgers, documentation and audit request management
Additional support: Post-audit adjustments and process improvements
Charity Accounting Partners provides audit preparation specifically for charities and not-for-profit organisations. Rather than offering a general corporate audit readiness service, its work is designed around Charity SORP, restricted funds, reserves reporting and the documentation expected by charity auditors.
Support can include preparing and organising the audit file, reviewing SORP compliance, assembling trustee and related-party disclosures and calculating reserves. The company can liaise with an existing external auditor, manage queries during fieldwork and help implement recommendations after completion.
For London charities, this narrower focus may be useful where audit preparation needs to address fund accounting and Charity Commission reporting alongside ordinary financial statement evidence.
Key Facts
Ideal for: Charities, trusts and not-for-profit organisations
Core services: Charity audit preparation, year-end accounts and financial reporting
Preparation areas: Restricted funds, reserves, SORP disclosures and audit files
Audit coordination: Auditor liaison and query management
AW Partners Group provides audit-readiness reviews alongside its accounting and advisory services for owner-managed businesses. Its service is aimed particularly at clients preparing for a first-year audit or reviewing controls before a transaction.
The company combines readiness work with statutory accounts, management reporting and outsourced finance support. This can be useful where audit preparation reveals broader weaknesses in bookkeeping, close procedures or internal financial controls that need to be corrected before fieldwork.
AW Partners Group notes that its statutory auditor registration is still in progress, with statutory audits requiring sign-off referred to a registered auditor. Audit-readiness work is offered independently of that statutory sign-off.
Key Facts
Ideal for: Owner-managed businesses preparing for a first audit
Core services: Audit-readiness reviews, accounting and outsourced finance
Preparation areas: Financial controls, reporting and transaction readiness
Typical sectors: Professional services, hospitality and IT contractors
Mindspace Outsourcing provides outsourced accounting services for London businesses, with audit support included within its financial accounting offering. Its published service covers working paper preparation, documentation and assistance during statutory audits.
The broader outsourcing model can be relevant to businesses whose audit readiness issues begin with incomplete bookkeeping or year-end reporting. Rather than limiting the engagement to an isolated pre-audit review, Mindspace can support accounting records, statutory accounts and related documentation that form the basis of the audit file.
The company also provides outsourced services to accountancy practices, so prospective clients should clarify whether they require direct business-side audit preparation or outsourced support for an accounting team.
Key Facts
Ideal for: Businesses needing outsourced accounting and audit support
Core services: Accounting, year-end reporting and audit support
Preparation areas: Working papers and supporting documentation
Delivery model: Outsourced finance and accounting support
Ultimate Accounting & Tax Solutions provides accounting and audit support to businesses across Greater London. Its services combine accounts preparation, bookkeeping and tax work with assistance for companies that need audited financial statements.
The practice can prepare annual accounts and the underlying accounting information required for year-end reporting, while audit work is undertaken in association with linked firms where statutory audit is necessary. This model is more appropriate for smaller businesses looking for practical accounting preparation and coordination than companies requiring a specialist technical accounting readiness project.
Its London office is located in Forest Gate, with a second office in Barking.
Key Facts
Ideal for: Smaller businesses combining year-end accounting with audit support
Core services: Accounts preparation, bookkeeping, tax and audit support
Preparation areas: Annual accounts and supporting financial records
Audit delivery: Statutory audit work performed with linked firms
Airthrey Accounting provides accounting and audit readiness support for small and medium-sized businesses, startups, and growing companies in London. Based in Wimbledon, the practice offers a separate Audit Assistance & Audit Readiness service for businesses preparing for statutory or voluntary external audits.
The service covers preparation of audit files, working papers, lead schedules, reconciliations, and supporting evidence requested by external auditors. Airthrey Accounting can also review significant accounting treatments, estimates, judgements, and disclosure requirements before fieldwork begins. During the audit, the company can coordinate information requests and liaise with external auditors, while post-audit support may include responses to management letter findings and follow-up actions.
Key Facts
Ideal for: Small And Medium-Sized Businesses, Startups, And First-Time Audits
Core services: Audit Readiness, Audit File Preparation, Working Papers, And Auditor Liaison
Preparation areas: Reconciliations, Lead Schedules, Supporting Evidence, And Management Representations
Technical support: Accounting Treatments, Estimates, Judgements, And Disclosure Reviews
Choosing between audit readiness companies in London depends on business size, sector, the maturity of financial processes, and the regulatory requirements surrounding the audit. Some companies combine audit preparation with accounting, reporting, controls, and broader advisory work, while others concentrate on narrower areas such as technical accounting, reconciliations, documentation, or pre-audit reviews. The right choice should provide credible independent assurance alongside practical actions that reduce financial and control risks and strengthen operational resilience. Different businesses will therefore need different levels of support depending on the condition of their records and internal finance resources. This guide is intended to provide neutral context for comparing those approaches and identifying a suitable partner for the audit preparation process.
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.
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