Choosing an external audit provider in Glasgow is more than a statutory requirement – it can affect how clearly an organisation presents its financial position, manages reporting obligations, and builds trust with stakeholders.
Glasgow has a varied audit and accountancy market, ranging from established professional services firms to regional practices that work closely with owner-managed businesses, charities, subsidiaries, and growing companies. Each firm brings a slightly different mix of audit experience, sector knowledge, and wider accounting or tax support.
This guide highlights a selection of external audit services companies operating in Glasgow. Rather than ranking providers, the aim is to offer practical context – outlining who these firms are, the types of organisations they typically support, and the areas where their audit work is most relevant.
Acumon
Acumon is a UK firm of chartered accountants and registered auditors providing external audit services to companies, charities, and international corporate groups. The firm works with organisations ranging from growing owner-managed businesses and charities through to larger corporate groups and regulated entities.
Audit engagements are delivered in accordance with International Standards on Auditing (UK) and supported by a structured risk-based audit methodology. Acumon provides these services across the UK, including in Glasgow.
The firm holds a Public Interest Entity (PIE) audit licence, allowing it to audit listed companies and other entities subject to enhanced regulatory oversight in the United Kingdom. PIE audits are subject to additional regulatory supervision and quality requirements, and only a limited number of firms are authorised to undertake this type of work.
In addition to its UK audit registration, Acumon holds audit licences/authorisations in several international financial centres, including Jersey and the Isle of Man (with mentions of support for broader international structures). These enable the firm to support international corporate groups where entities are located across multiple jurisdictions.
International group structures frequently involve a combination of UK operating companies and offshore entities. Coordinating audit work across these structures requires familiarity with cross-border financial reporting and group consolidation processes.
Acumon works with finance teams and boards to support statutory audit requirements while also helping organisations strengthen financial reporting processes, governance arrangements, and internal controls as they grow.
External Audit Capabilities:
Acumon provides external audit services across a wide range of organisational structures and sectors. These include:
- UK limited companies and corporate groups (including UK PLCs)
- 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
Audit engagements are typically led by senior audit professionals with direct involvement throughout the engagement.
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
- Cayman Islands audit licence
- British Virgin Islands audit licence
These registrations allow the firm to provide external audit services to groups that include entities in both the UK and key international financial centres.
Core Services:
Acumon provides independent and robust external audit services, delivering a clear and objective view of your financial standing. These include:
- Risk management and compliance support
- Consolidated group audits
- Charity and not-for-profit audit
- Audit of international group structures
- Internal audit and governance reviews
- Statutory external audit
- Group and subsidiary audits
- Public Interest Entity (PIE) audits
Audit work is often delivered alongside discussions with management and boards regarding financial reporting processes and governance frameworks.
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
Early engagement with an audit firm can help ensure that financial reporting systems and documentation are aligned with statutory audit requirements.
Contact Information:
- Website: acumon.com
- Phone: 020 8567 3451
- E-mail: [email protected]
- Address: 1-2 Craven Road, Ealing, London, W5 2UA, UK
TC Group
TC Group provides audit, accountancy, tax, and business advisory support. Their work covers local businesses and individuals across the Central Belt, with services shaped around compliance, financial planning, and wider business needs. TC Group works with organisations that need structured reporting support alongside accounts, tax, payroll, HR, and succession planning.
TC Group’s services are built around the needs of SMEs, owner-managed businesses, charities, housing organisations, and individuals who want accountancy support that is not limited to annual filing. Their external audit work sits within a wider service model, so clients can also access help with compliance, financial reporting, tax planning, payroll, and longer-term business decisions where needed.
Key Highlights:
- Partner team based across Scotland
- Experience with charities, housing associations, social housing, and owner-managed businesses
- Support for SMEs and individuals across the Central Belt
Services:
- External audit
- Accounts and compliance
- Tax reliefs and tax planning
- HR outsourcing
- Succession planning
- Personal tax and financial planning
AAB
AAB works across audit and assurance with a risk-focused approach that combines external audit, internal audit, joint venture audit, fraud work, and support for not-for-profit organisations. Their audit team supports UK entities, international clients, owner-managed businesses, public sector bodies, and charities.
AAB places emphasis on clear communication, early issue identification, and practical reporting. They also coordinate international audit work through global connections, acting as a single point of contact where UK statutory requirements need to sit alongside group auditor reporting. This makes AAB relevant for Glasgow organisations with more layered structures, cross-border links, or wider assurance needs beyond a standard annual audit.
Key Highlights:
- Audit and assurance services for UK and international clients
- External audit support linked with internal audit and risk work
- Experience with owner-managed businesses, public sector, charities, and UK entities
- Fraud prevention, investigation, and secondment support available
Services:
- Internal audits
- External audits
- Joint venture audits
- Contract and charity audits
- Fraud investigation and prevention
- Audit secondments
Armstrong Watson
Armstrong Watson provides audit and assurance services for businesses, charities, academies, and other organisations across Scotland and the North of England. Their audit work includes statutory audits, internal audits, independent reviews, grant audits, and financial reporting advisory. The service is built around compliance, but also looks at controls, risk, systems, and reporting quality.
A noticeable part of Armstrong Watson’s audit offer is the range of assurance work around the statutory audit. They support organisations that need confidence for investors, lenders, customers, grant providers, or trustees, not only those meeting audit thresholds. Their team also works with pension schemes and has sector experience across manufacturing, construction, hospitality, legal, not-for-profit, and technology.
Key Highlights:
- Statutory audit support for businesses, charities, and academies
- Independent reviews for organisations that do not need a full statutory audit
- Grant audit experience, including work linked to UK and international grant bodies
- Sector knowledge across not-for-profit, manufacturing, construction, hospitality, legal, and technology
Services:
- Statutory audit
- Internal audit
- Assurance engagements
- Independent reviews
- Grant audits and certification
Wbg
Wbg provides external audit services, working with public sector bodies, third sector organisations, and private companies. Their audit work is presented as more than a statutory process, with attention given to financial management, operating procedures, and the systems behind the numbers. Wbg may be relevant where the audit needs to include a clear review of both compliance and how financial processes are working.
External audit at Wbg is also connected to its wider service areas, including internal audit, business advisory, tax, payroll, insolvency, corporate finance, and digital services. They work across sectors such as charities, education, healthcare, food and drink, property and construction, and social housing, which gives their audit offering a fairly practical sector spread without narrowing it to one type of organisation.
Key Highlights:
- Registered to carry on audit work in the UK by ICAS
- Works with public, third sector, and private organisations
- Sector coverage includes charities, education, healthcare, and social housing
- External audit linked with wider advisory, tax, payroll, and internal audit support
Services:
- External audit
- Internal audit
- Business advisory services
- Corporate finance
- Digital services
Grant Thornton UK
Grant Thornton UK external audit service is built around independent reporting, regulatory requirements, and clearer financial information for stakeholders. They handle audit and assurance work for a wide range of organisations, including listed entities, privately held businesses and public sector bodies.
A major part of Grant Thornton UK’s audit approach is the use of technology to support the audit process and improve visibility over risks, reporting, and decision-making. They combine external audit with wider assurance and accounting support, which can suit organisations that need more than a year-end review and want audit work connected to broader business, governance, or sector issues.
Key Highlights:
- External audit services for commercial, public sector, and financial services clients
- Audit work supported by digital tools and automation
- Wider assurance and accounting services available
- UK firm connected to the Grant Thornton international network
Services:
- External audit
- Commercial audit
- Audit for listed entities and public interest entities
- Audit for privately held businesses
- Audit for PE-backed companies
- SME audit support
Deloitte
Deloitte provides external audit services focused on financial statements and internal controls over financial reporting. Their audit work is designed to assess whether financial statements give a true and fair view under the relevant reporting framework, while also helping audited entities understand risks, controls, and financial processes more clearly.
Across Deloitte’s audit work, technology and specialist industry knowledge play a central role. Their external audit service brings together audit teams, sector experience, and tools that support audit quality, reporting insight, and control review.
Key Highlights:
- External audit services focused on financial statements
- Review of internal controls over financial reporting
- Audit work supported by technology and sector experience
- Helps audited entities understand risks and financial processes
Services:
- Financial statement audit
- Internal controls reporting
- External audit
- Corporate reporting support
- Assurance services
- Risk and regulatory support
Moore UK
Moore UK delivers external audit services for UK businesses, corporate groups, PE-backed companies, AIM-listed entities, and subsidiaries of international organisations. Their audit work is based on UK auditing standards and covers reporting under UK GAAP, including FRS 102 and FRS 101, as well as IFRS.
The audit process at Moore UK is risk-based, with attention given to financial reporting controls, IT systems, data quality, and sector-specific assurance needs. Their work can include audit committee reporting, control findings, analytical reviews, IT audit observations, and independent audit opinions.
Key Highlights:
- External audit services for UK companies and corporate groups
- Experience with PE-backed businesses, AIM-listed entities, and international subsidiaries
- Audit work carried out under ISAs (UK)
- Focus on financial reporting controls, IT systems, and data-led audit work
Services:
- External audit
- Statutory audit
- Audit committee reporting
- Internal control review
- IT general controls review
- Systems assurance
Thomas Barrie & Co
Thomas Barrie & Co is a Glasgow accountancy firm offering audit services alongside accounting, bookkeeping, tax, payroll, VAT, company secretarial, and business planning support. Their audit work is aimed at helping organisations meet statutory duties while also reviewing financial records, management systems, internal controls, and reporting processes. Thomas Barrie & Co is registered to carry on audit work in the UK by The Institute of Chartered Accountants of Scotland.
Rather than treating audit as a separate annual task, Thomas Barrie & Co links it with wider business accounting and compliance work. Their team can support the preparation and submission of financial documents, review financial transactions, assess business processes, and identify areas where controls or reporting may need attention.
Key Highlights:
- Registered for audit work in the UK by ICAS
- Audit support linked with accounting, tax, payroll, VAT, and company secretarial work
- Review of financial and management systems
- Focus on internal controls, financial reports, and regulatory requirements
Services:
- Audit
- Accounting
- Bookkeeping
- Business start-up and planning
- Company secretarial
- Corporate tax planning
PwC
PwC carries out audit work for organisations where trust in financial reporting, controls, and governance is central to stakeholder confidence. Their audit process starts with understanding the organisation, including its business model, systems, data flows, and control environment. From there, PwC builds an audit plan, tests material risks, analyses data, and signs the audit opinion once the required work has been completed.
Technology has a strong role in PwC’s audit approach. They use audit platforms, data extraction tools, analytics, visualisation, automation, machine learning, and AI-supported methods to examine larger sets of information and focus on areas with a higher risk of misstatement. PwC also works in areas connected to audit, including non-financial assurance, capital markets assurance, corporate reporting, and transparency-related work.
Key Highlights:
- Audit work focused on true and fair financial reporting
- Structured audit process covering scoping, risk assessment, testing, analysis, and reporting
- Use of digital audit tools, data analytics, automation, and AI-supported methods
Services:
- Financial statement audit
- Risk assessment
- Audit planning
- Data extraction and analysis
- Controls review
- Non-financial assurance
BDO UK
BDO UK provides external audit services for privately owned companies, PE-backed businesses, public sector organisations, and companies listed in the UK and overseas. Their audit work is built around independent reporting, clear communication, and a close review of the areas that carry the most audit risk. BDO UK is especially focused on the mid-market, while still working with businesses of different sizes and structures.
A BDO UK audit includes formal reporting at the start and end of the process, regular contact with management, and communication with audit committees where relevant. Their work also uses BDO Advantage, a data analytics tool that helps review financial statement data, identify outliers, and decide where extra audit focus may be needed.
Key Highlights:
- Focus on mid-market businesses
- Tier One regulated firm
- Audit teams based across UK offices
- International audit support through the BDO network
- Use of BDO Advantage for audit data analytics
Services:
- External audit
- Statutory audit
- Global statutory audits
- Audit committee reporting
- Financial statement review
- Data analytics
- Corporate reporting support
Henderson Loggie
Henderson Loggie offers financial audit and assurance services. Their audit work is based on understanding the client’s business, objectives, operating environment, systems, and risks before shaping the audit team and process. Henderson Loggie works with organisations ranging from owner-managed businesses to larger commercial groups and not-for-profit clients.
The firm places a clear focus on communication during the audit, with regular feedback on financial reporting matters, legislative changes, and risks that may affect the organisation. Henderson Loggie also has experience across UK financial reporting and International Financial Reporting Standards, which can be important for organisations with more technical reporting needs.
Key Highlights:
- Audit and assurance services for commercial and not-for-profit organisations
- Work with owner-managed businesses and larger groups
- Knowledge of UK financial reporting and IFRS
- Audit process shaped around business risks, systems, and controls
Services:
- Financial audit
- Audit and assurance
- Statutory audit support
- Financial reporting review
- Risk-focused audit planning
Streets
Streets provides audit, accounting, tax, and advisory services. Their local team works with businesses and individuals and the surrounding areas, covering financial auditing, annual and management accounts, payroll, tax planning, bookkeeping, VAT, and business advisory. Streets supports a broad client base, from larger enterprises to family-run businesses, start-ups, and private clients.
Audit and assurance at Streets sits alongside wider accountancy and business support, which may suit organisations that want audit work connected to their day-to-day finance needs. Their Glasgow team has sector knowledge in areas such as owner-managed and family businesses, manufacturing and engineering, property and construction, technology and telecoms, estates and agriculture, and start-ups.
Key Highlights:
- Works with larger enterprises, family businesses, start-ups, and individuals
- Sector knowledge across manufacturing, property, technology, agriculture, and private client work
- Internal and external audit support available
Services:
- Financial audits
- Internal and external audit
- Annual accounts
- Management accounts
- Business accounting
KPMG
KPMG provides audit services for organisations that need independent assurance over financial reporting, controls, and the information used by investors and stakeholders. Their audit work is built around independence, professional scepticism, objectivity, and a structured challenge process. KPMG also connects audits with areas such as accounting advisory, assurance, sustainability reporting, audit technology, and transactions assurance, which gives the service a wider reporting and governance angle.
Technology is a clear part of how KPMG runs its audit work. KPMG Clara, the firm’s smart audit platform, is used to support data-led audit work and help teams focus on issues that matter within the financial information. The firm also gives attention to ESG assurance and sustainability reporting, reflecting the growing need for organisations to support non-financial disclosures with stronger data, governance, and assurance processes.
Key Highlights:
- Independent audit services focused on financial reporting confidence
- Audit approach based on scepticism, objectivity, independence, and ethics
- Data and analytics used to challenge assumptions and focus audit work
- Services linked with accounting advisory, assurance, ESG, and transactions
Services:
- Accounting advisory
- Assurance
- External audit
- Sustainability reporting
- ESG assurance
- Audit technology
Forvis Mazars
Forvis Mazars provides audit, accountancy, advisory, and tax services across a wide range of sectors, with external audit work shown here through its insurance audit team. Their external audit service is partner-led and built around regular face-to-face communication, technical review, and an understanding of how systems and controls support annual accounts. Forvis Mazars works across areas such as insurance, banking, public services, retail, energy, utilities, manufacturing, private equity, and technology.
Within the insurance audit, Forvis Mazars covers Lloyd’s syndicates, Lloyd’s agencies, corporate members, managing general agents, insurance companies, broking houses, life assurers, and friendly societies. Their audit work is not limited to meeting the statutory requirement, as it also looks at controls and processes that affect reporting quality.
Key Highlights:
- External audit services within a wider audit and assurance practice
- Partner-led audit approach with regular client communication
- Strong focus on insurance sector audit work
- Experience with Lloyd’s market entities, insurers, brokers, and life assurers
Services:
- External audit
- Financial audit
- Audit and assurance
- Accounting and corporate reporting
- Independent assurance and reviews
- Lloyd’s market audit
Consilium Chartered Accountants
Consilium Chartered Accountants provides audit and assurance services for Scottish and UK businesses, SMEs, charities, start-ups, entrepreneurs, and owner-managed companies. Their audit work is framed as an independent check on compliance, but it also looks at financial, commercial, and governance risks that may affect planning and decision-making.
A Consilium audit can cover statutory audits, non-statutory audits, external audit, charity audit work, voluntary statutory audits, and financial reporting advisory under UK and IFRS GAAPs. The firm links audit with wider business advisory, accounts, tax, corporate finance, and payroll services, which may suit organisations that want audit support alongside broader financial advice.
Key Highlights:
- Glasgow-based audit and accountancy firm
- Audit services for SMEs, charities, start-ups, and owner-managed businesses
- Works with Scottish and UK businesses and not-for-profit organisations
- Covers statutory, non-statutory, charity, and voluntary audits
Services:
- Statutory audits
- Non-statutory audits
- Charity auditing and advisory
- Voluntary statutory audits
- Accounts
Conclusion
Choosing an external audit provider usually comes down to more than location or firm size. Organisations need to look at the type of audit they require, the sectors a firm understands, the complexity of their reporting, and whether the audit team can communicate clearly throughout the process. For some businesses, a local firm with close contact and practical accounting support may be the right fit. For others, especially larger groups or organisations with cross-border reporting needs, wider technical resources and international coordination may matter more.
This guide is meant to make that first comparison easier. It does not rank firms or suggest that one provider suits every organisation. Instead, it gives a clearer view of the types of external audit companies operating in Glasgow, the services they provide, and the kinds of clients they usually support. That context can help boards, finance teams, trustees, and business owners narrow the field before starting more detailed conversations.