CASS 5 Audit Companies in Edinburgh: Guide to Providers
AC
Acumon Chartered Accountants·8 min read
For firms handling client money in the insurance sector, meeting regulatory expectations under CASS 5 is an important part of maintaining trust and demonstrating effective governance. Regular audits and assurance reviews can help businesses assess whether their systems, controls and processes remain aligned with FCA requirements.
Edinburgh has long been recognised as one of the UK's key financial centres, with a strong presence of insurers, brokers and professional services firms. As a result, organisations seeking CASS 5 audit support have access to a range of providers, from large international networks to specialist advisory practices with experience in regulatory compliance and assurance.
This guide highlights a selection of companies offering CASS 5 audit and related services in Edinburgh. Rather than ranking providers, the aim is to provide practical context on the firms operating in this space, the types of organisations they support, and the areas of expertise they bring to client money oversight and regulatory assurance.
Acumon
Acumon is a UK firm of chartered accountants and registered auditors providing CASS 5 audit services to firms and organisations across Edinburgh and the wider UK market.
The firm works with regulated businesses ranging from insurance intermediaries and brokers through to larger corporate groups operating within FCA-regulated sectors. CASS 5 audit engagements are designed to assess compliance with client money rules, enhance governance arrangements and provide assurance over regulatory obligations.
Acumon provides CASS 5 audit support across a range of regulatory and reporting requirements, including client money reviews, control testing, compliance assessments and reporting under the FCA Client Assets Sourcebook (CASS). Services are delivered using a structured methodology tailored to each organisation’s operating model, risk profile and regulatory environment.
Acumon holds a Public Interest Entity (PIE) audit licence, enabling the firm to support organisations subject to enhanced regulatory oversight in the United Kingdom. Alongside 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 organisations with international structures and cross-border reporting requirements.
Firms handling client money frequently operate within evolving regulatory frameworks that require robust controls, effective governance and ongoing oversight. Acumon works with compliance teams, directors and senior management to support regulatory reporting, strengthen control environments and maintain alignment with FCA expectations.
CASS 5 Audit Capabilities
Acumon provides CASS 5 audit services across a range of regulated entities and compliance environments.
These include:
insurance intermediaries and brokers
FCA-regulated firms handling client money
organisations subject to CASS 5 requirements
multi-entity and group structures
businesses with cross-border operations
regulated entities with complex control frameworks
Engagements are managed by experienced professionals who remain actively involved throughout the review and reporting process.
Regulatory Licences and Registrations
Acumon maintains a range of regulatory registrations and audit authorisations supporting organisations operating across UK and international markets.
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 support organisations operating across regulated sectors, international structures and multi-jurisdictional environments.
Core Services
Alongside CASS 5 audit engagements, Acumon provides a broader range of services supporting governance, reporting and regulatory compliance.
These include:
regulatory compliance assessments
statutory external audit
CASS 5 audits and client money reviews
group and subsidiary audits
Public Interest Entity (PIE) audits
charity and not-for-profit audit
internal audit and governance reviews
risk management and compliance support
CASS 5 work is often undertaken alongside discussions regarding client money arrangements, regulatory obligations, governance frameworks and internal control effectiveness.
As regulated businesses grow, enter new markets or develop more complex operating structures, compliance requirements and oversight expectations often become increasingly demanding.
Acumon works with businesses that are:
managing client money obligations
preparing for FCA oversight
operating within corporate group structures
strengthening governance and control procedures
expanding regulated activities
Early involvement can help organisations strengthen compliance frameworks, improve governance arrangements and support ongoing regulatory obligations.
Address: 1-2 Craven Road, Ealing, London, W5 2UA, UK
Phone: 020 8567 3451
Saffery
Saffery operates across a range of financial services areas, including support for firms subject to FCA regulation and client money requirements. In the context of CASS 5 audits, they provide assurance and review services designed to assess how client money arrangements, internal controls and governance frameworks function in practice. Their work covers both reasonable and limited assurance engagements, alongside reviews of client money systems and controls.
Financial services businesses often face changing regulatory expectations, particularly where client assets and oversight are involved. Through their wider audit and advisory offering, Saffery support organisations in navigating compliance obligations while considering operational processes, reporting requirements and risk management across regulated environments.
Deloitte provides CASS risk advisory services to financial institutions dealing with client assets and client money obligations. Their work in this area focuses on helping firms understand the practical application of FCA rules, assess control environments and identify areas where governance arrangements may require attention. CASS 5 audits and related reviews form part of a broader risk and regulatory framework.
As regulatory scrutiny continues to evolve, organisations often need support that extends beyond annual assurance requirements. Deloitte's CASS offering includes oversight support, remediation exercises and assistance during regulatory reviews, reflecting the wider role that governance and controls play within financial services firms operating in markets such as Edinburgh.
Key Highlights:
Dedicated CASS risk advisory capability
Experience with FCA regulatory reviews
Support for control environment assessments
Risk and compliance advisory services
CASS oversight mentoring
Remediation and governance support
Services:
CASS advisory
Control environment assessments
Regulatory review support
Audit remediation
Risk management reviews
CASS training
Compliance advisory
Governance assessments
Contact Information:
Website: www.deloitte.com
Facebook: www.facebook.com/deloitteuk
Twitter: x.com/deloitteuk
LinkedIn: www.linkedin.com/company/deloitte
Address: 9 Haymarket Square, Edinburgh, EH3 8RY, United Kingdom
Phone: +44 (0)131 221 0002
Johnston Carmichael
Johnston Carmichael have developed dedicated CASS and safeguarding capabilities for regulated financial services firms facing client asset obligations. Their approach to CASS 5 audits reflects the reality that compliance requirements can vary depending on a firm's business model, governance structure and operational processes. This is particularly relevant for insurance intermediaries and other organisations subject to client money rules.
Technology and controls are increasingly important in demonstrating compliance with FCA expectations. By combining CASS audit work with IT assurance and governance reviews, they assess how systems operate alongside policies and procedures. Management recommendations issued during engagements can also support ongoing improvements in controls and compliance frameworks.
Key Highlights:
Dedicated CASS audit team
Experience across regulated financial services sectors
Forvis Mazars support firms operating under client asset and safeguarding regulations, including businesses subject to CASS 5 requirements. Their work covers governance, oversight and internal control reviews designed to help organisations demonstrate compliance with FCA expectations relating to client money protection.
Client asset regulation has received increased attention over recent years, particularly following changes in the wider regulatory landscape. Their CASS and safeguarding teams work across multiple financial services sectors and include specialist input on systems, reconciliations and operational controls where technology plays a role in maintaining compliance.
Address: Capital Square, 58 Morrison Street, Edinburgh, EH3 8BP, United Kingdom
Phone: +44 13 13 13 79 00
RSM
RSM advises financial services firms on client money and asset protection requirements under FCA regulations. Their work includes assurance reviews, forensic analysis and assessments of CASS arrangements to help organisations understand whether controls and reporting processes remain aligned with regulatory expectations. CASS 5 audits form part of these broader compliance activities for firms handling insurance client money.
Regulated businesses often need to demonstrate that governance arrangements remain effective as operational models evolve. RSM's approach includes reviewing management information, resolution packs and internal reporting processes, helping firms strengthen oversight of client money and asset protection responsibilities.
Prydis provides CASS audit and assurance services for FCA-regulated firms that hold or control client money and custody assets. Their offering covers CASS 5, CASS 6 and CASS 7 requirements, with support available to businesses operating across different parts of the UK, including Edinburgh. Audit engagements are designed to assess whether systems and controls meet applicable regulatory standards.
Client money protection remains a key area of FCA focus, particularly for insurance firms and financial intermediaries. Prydis conducts both reasonable and limited assurance engagements and provides feedback on control environments, helping organisations address potential gaps and adapt to regulatory developments over time.
Selecting a CASS 5 audit provider is often influenced by more than regulatory requirements alone. Firms handling insurance client money may consider factors such as sector experience, understanding of FCA expectations, approach to governance, and the ability to assess controls within day-to-day operations.
Edinburgh's financial services market includes a mix of national firms and specialist providers supporting organisations with CASS compliance, assurance and risk management. The purpose of this guide is not to rank providers, but to offer practical context on the companies operating in this area and the services they provide.
As regulatory expectations continue to develop, effective client money oversight remains closely linked to wider governance and risk frameworks. Reviewing a provider's experience with CASS 5 audits, control assessments and compliance processes can help organisations identify support that aligns with their operational structure and regulatory obligations.
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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