CASS 5 Audit Firms in Liverpool: Companies and Services Guide

Choosing a CASS 5 audit provider in Liverpool is not just a routine compliance step for FCA-regulated insurance intermediaries. It can affect how clearly a firm understands its client money arrangements, how well it prepares for regulatory review, and how confidently it manages CASS-related controls.

Liverpool businesses may work with a mix of audit and assurance providers, from larger accountancy networks with regulated-sector experience to specialist firms that support insurance brokers and financial services businesses. Each provider may bring a different level of CASS knowledge, reporting style, sector focus, and practical approach to client money work.

This guide highlights a selection of CASS 5 audit companies serving firms in and around Liverpool. It is not intended as a strict ranking. The aim is to give useful context – outlining who these firms are, the types of organisations they usually support, and the areas of CASS 5 audit or assurance work where they are most active.

Acumon

Acumon is a UK-based firm of chartered accountants and registered auditors that works with companies, charities, regulated businesses, and international corporate groups. Their audit work covers both UK organisations and group structures with entities across different jurisdictions.

For businesses looking at CASS 5 audit companies in Liverpool, Acumon may be relevant where insurance intermediaries or other FCA-regulated firms need audit and assurance support around client money arrangements. CASS 5 work usually depends on a clear understanding of how client money is received, recorded, reconciled, and protected, so it often connects closely with financial reporting, governance, and internal control processes.

The firm supports organisations of different sizes, from growing owner-managed companies and charities to larger groups and regulated entities. Their audit approach is based on International Standards on Auditing (UK) and follows a structured risk-based methodology, with attention given to the areas that may create the most reporting or compliance risk.

Acumon also holds a Public Interest Entity audit licence. This means they are authorised to audit listed companies and other UK entities that fall within a higher level of regulatory oversight. PIE audit work carries additional quality and supervision requirements, and only a restricted number of firms are permitted to carry out this type of audit.

Beyond their UK audit registration, Acumon holds audit licences in several international financial centres, including Jersey, Isle of Man, the Cayman Islands, and the British Virgin Islands. This allows them to support organisations where UK entities sit alongside offshore companies, holding structures, or investment vehicles.

These cross-border arrangements are common in sectors such as investment management, technology, energy, and international trade. Where a group has UK operations and offshore entities, audit work may need to take account of consolidation, financial reporting requirements, governance responsibilities, and the movement of financial information across jurisdictions.

Acumon works with finance teams, management, and boards to support audit requirements while also helping organisations look at the strength of their reporting processes, governance arrangements, and internal controls as they develop.

Audit Capabilities

Acumon provides audit and assurance services for a range of organisations and group structures. 

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

Audit engagements are typically handled with direct involvement from senior audit professionals, particularly where the work requires judgement around risk, controls, documentation, and regulatory expectations.

Regulatory Licences and Registrations

Acumon has audit registrations that allow them to work with organisations operating in the UK and across several international 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 licences help the firm support groups that include both UK companies and entities in major offshore financial centres. This can be important where audit planning needs to consider different reporting environments, ownership structures, and governance responsibilities.

Core Services

Alongside statutory external audit, Acumon provides services connected with audit, assurance, governance, and financial reporting.

These include:

• statutory external audit
• group and subsidiary audits
• Public Interest Entity (PIE) audits
• charity and not-for-profit audit
• audit of international group structures
• internal audit and governance reviews
• risk management and compliance support

Their audit work is often supported by conversations with management and boards about financial reporting, control processes, and governance frameworks.

Many businesses in Liverpool first encounter specific audit demands (such as CASS 5) as they scale their operations and exceed the audit exemption limits established by 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

Getting audit support early can help a business prepare its records, systems, and supporting documentation before formal audit or assurance work begins.

Contact Information

• Website: acumon.com
• Phone: 020 8567 3451
• E-mail: mail@acumon.com
• Address: 1-2 Craven Road, Ealing, London, W5 2UA, UK

Millet Audit Ltd

Millet Audit Ltd operates as a specialist accountancy firm that delivers financial and statutory audits, with a specific focus on handling CASS requirements for regulated firms in Liverpool. They ground their work in independent reviews that look closely at client asset controls, financial record keeping, and internal monitoring systems. By checking areas like account reconciliations and the actual segregation of funds, they try to help businesses spot operational flaws and align themselves with FCA rules.

The firm runs a fully remote audit model, utilizing secure digital systems and online communication tools to handle the process. This means businesses can upload documentation and hold regulatory meetings without needing on-site office visits, making it easier for hybrid teams or firms in multiple locations to manage compliance. They aim to deliver clear, practical recommendations rather than just running a checkbox exercise, focusing on helping companies reduce risk while maintaining their day-to-day operations.

Key Highlights

• A fully remote audit model that uses secure digital platforms to handle documentation and communication without on-site visits.
• Specialized focus on FCA Client Assets Sourcebook (CASS) compliance and independent systems reviews for financial sectors.
• Tailored approach geared toward varying business sizes, from smaller growing entities to larger private firms.
• Regulated by the ICAEW and listed on the official UK Register of Statutory Auditors.

Services

• Statutory external audit
• CASS compliance and independent client asset reviews
• Financial assurance services
• Independent examination

Contact Information

• Website: milletaudit.com
• Email: info@milletaudit.com
• Phone: +44 (0) 203 084 4550
• Address: Aldgate Tower, 2 Leman Street, London, E1 8FA

RSM UK

RSM UK provides tailored audit and risk management services built around a structured quality assurance framework. They structure their audit approach to move past basic regulatory compliance, aiming instead to give stakeholders clear visibility into financial statements. By pointing their focus toward the higher-risk areas of a business’s financial records, they look to help corporate boards make more informed strategic decisions and strengthen their overall governance.

The firm blends industry methodologies with market technology to make financial reporting and checking processes more secure and efficient. Alongside statutory audits, they deal significantly with risk mitigation through internal controls and governance assessments. They handle these reviews through either co-sourced or outsourced setups, allowing companies to identify major financial, operational, and strategic blind spots in an evolving marketplace.

Key Highlights

• Audit processes designed around a specific five-step approach to gather practical corporate insights.
• Regular publication of transparency reports outlining their internal measures for audit quality and workforce investment.
• Flexible internal audit models offering both fully outsourced and co-sourced review options.
• Integration of specialized financial reporting resources and technical guidance across multiple accounting frameworks.

Services

• Statutory financial audit
• Internal audit and controls review
• Risk and governance consulting
• Financial reporting and technical guidance

Contact Information

• Website: www.rsm.global
• Phone: +44 (0)151 600 2600                                                                 
• Address: 14th Floor, 20 Chapel Street, Liverpool, L3 9AG
• Facebook: www.facebook.com/GlobalRSM
• Twitter: x.com/RSM_Global
• LinkedIn: www.linkedin.com/company/rsm-uk
• Instagram: www.instagram.com/rsm.uk

Grant Thornton UK

Grant Thornton UK operates as an assurance, tax, and advisory firm providing regulatory support to growing and evolving businesses. They closely follow evolving regulatory demands, particularly where financial supervision impacts small and medium-sized firms dealing with client asset functions. Their teams focus on keeping businesses updated on statutory changes and helping compliance departments manage the operational pressures of maintaining regulatory alignment.

The firm utilizes panels of audit partners and advisory directors to break down complex compliance issues for technical sectors. Through technical briefings, educational webinars, and direct corporate advisory work, they offer guidance on how expanding companies can structure their internal operations to protect assets. They run their services through a wide network of regional offices, allowing them to provide local corporate support across major UK hubs, including Liverpool.

Key Highlights

• Specialized advisory panels led by dedicated audit partners and directors focusing on changing CASS regulations.
• Strong focus on guiding small and medium-sized enterprises through the complexities of expanding financial functions.
• Educational and compliance-driven tracking through professional updates and regular industry webinars.
• National presence with a localized office network across major UK commercial centers, including Liverpool.

Services

• Financial assurance services
• CASS compliance advisory
• Corporate tax consulting
• Business advisory services

Contact Information

• Website: www.grantthornton.co.uk
• Phone: +44 (0)151 224 7200                                                              
• Address: Royal Liver Building, Liverpool, L3 1PS
• LinkedIn: www.linkedin.com/company/grant-thornton-uk
• Instagram: www.instagram.com/gt_trainees

KPMG UK

KPMG UK functions as a multidisciplinary firm providing audit, legal, tax, and advisory services across the United Kingdom. In the financial sector, they deal with complex structural challenges and changing regulatory demands, including client asset tracking and operational resilience frameworks. They look at risk management by pairing sector expertise with new technology, aiming to help companies manage compliance pressures during periods of structural change.

The firm structures its work around specific industry sectors, ranging from consumer markets and financial services to technology and infrastructure. They focus on delivering independent financial reviews that help corporate boards evaluate risks and identify operational opportunities. Their audit approach emphasizes transparency in financial reporting to help stakeholders and decision makers understand business health in volatile environments.

Key Highlights

• Multi-industry sector coverage encompassing financial services, technology, media, and private enterprise.
• Focus on risk reduction, technology integration, and operational resilience under regulatory oversight.
• Access to specialized reports on corporate finance functions and artificial intelligence risk monitoring.
• National network providing accounting, statutory audit, and legal advisory frameworks across the UK.

Services

• Statutory financial audit
• Corporate tax advisory
• Financial services risk management
• Deal advisory and corporate transactions

Contact Information

• Website: kpmg.com
• Phone: +44 (0)161 246 4000                  
• Address: The Plaza, 100 Old Hall St, Liverpool L3 9QJ
• Twitter: x.com/kpmguk
• Facebook: www.facebook.com/KPMG
• LinkedIn: www.linkedin.com/company/kpmg-uk

EY UK

EY UK operates a global network that delivers financial accounting advisory and audit services across different corporate sectors. They frame their audit approach around changing statutory requirements, digital transformation, and the need for stakeholder trust. By putting together multidisciplinary teams, they focus on evaluating the qualitative disclosures and complex risks that modern organizations face during independent financial reviews.

The firm has integrated digital tools and automated analytics into its auditing processes to evaluate risk landscapes remotely and identify hidden issues. Their work addresses the scrutiny of both regulatory bodies and audit committees, focusing on consistency across international and local corporate structures. They also pull in skills from their separate tax and transaction service lines whenever an assignment requires broader structural analysis.

Key Highlights

• Implementation of automated analytics and digital auditing tools to evaluate corporate data frameworks.
• Multidisciplinary team structures combining accounting backgrounds with technology and transaction experience.
• Focused research publications on long-term corporate value and global audit quality reports.
• Capacity to handle reporting structures for banking, capital markets, and large-scale commercial organizations.

Services

• Statutory and digital audit services
• Financial accounting advisory
• Banking and capital markets assurance
• Corporate transaction advisory

Contact Information

• Website: www.ey.com
• Phone: +44 20 7951 2000
• Address: 6 More, London Place, London SE1 2DA                
• Facebook: www.facebook.com/EY
• Twitter: x.com/EYnews
• LinkedIn: www.linkedin.com/company/ernstandyoung

Williamson & Croft

Williamson & Croft provide audit and assurance services out of their offices in Manchester and Liverpool, focusing primarily on private companies and public bodies. They use cloud-based audit technology to manage documentation and run their testing, combining face-to-face meetings with remote workflows. Their teams draw on general practice accounting, taxation, and advisory backgrounds to guide businesses through statutory reporting requirements and systems evaluations.

The firm covers a variety of client money checks, including specialized reviews under the Financial Conduct Authority (FCA) rules and the Solicitors Accounts Rules. They look over internal workflows, reconciliations, and fund segregation to verify that client money is handled safely by financial services firms, law firms, and property managers. At the end of these processes, they supply management with findings that point out potential cost savings, internal control weaknesses, or tax considerations.

Key Highlights

• Local office presence in Liverpool and Manchester, serving regional private companies and local authorities.
• Specialized expertise in client money compliance, covering FCA, legal sector, and property management rules.
• Combined service model that balances on-site meetings with cloud-based audit technology platforms.
• Extended background in general practice accounting, including corporate tax planning and advisory work.

Services

• Statutory and non-statutory financial audits
• FCA client money and CASS 5 audits
• Solicitors Accounts Rules client money audits
• Limited assurance engagements and due diligence

Contact Information

• Website: www.williamsoncroft.co.uk
• Phone: 0151 303 3112
• E-mail: info@uhy-williamsoncroft.com
• Address: 1 Old Hall Street, 1^st Floor, Liverpool, L3 9HF
• Twitter: x.com/williamsoncroft
• LinkedIn: www.linkedin.com/company/williamsoncroft

Conclusion

Finding the right team to handle a CASS 5 audit in Liverpool really comes down to balancing regulatory strictness with a workflow that does not break your daily business operations. Regulated firms deal with a lot of pressure from the FCA to keep client funds entirely segregated and perfectly accounted for, but how an accounting firm approaches that check makes all the difference. Some businesses thrive under a completely remote, tech-heavy framework where everything moves through secure digital uploads on their own time. Others need a partner with deep local roots in the North West who can combine cloud tools with face-to-face boardroom discussions to pick apart complex group structures or specific legal sector rules.

That is why we pulled this overview together. Instead of letting you dig through dense compliance jargon or vague marketing pitches on individual websites, this guide lays out the actual operational models, local availability, and specific client asset capabilities of the city’s key players side by side. Choosing an auditor should not feel like a shot in the dark based on a brand name alone. By focusing on how these firms handle real-world risk, technology, and reporting, you can figure out exactly who aligns with your current scale, your internal systems, and your plans for commercial growth.