Scottish organisations can choose from independent accountancy practices, Scotland-focused firms and larger international audit networks. The providers below differ in sector experience, regulatory capabilities, geographic coverage and the types of assurance engagements they handle. This is a practical overview rather than a ranking, with the emphasis on helping businesses, charities and other organisations compare relevant audit providers.
Acumon
Acumon is a UK firm of chartered accountants and registered auditors providing external audit services to companies, charities, and corporate groups, including organisations operating in Scotland.
The firm works with a range of organisations, from growing owner-managed businesses and charities to larger corporate groups and regulated entities. For Scottish organisations, this can include businesses with operations elsewhere in the UK or international group structures that require coordinated statutory audit work. Audit engagements are delivered in accordance with International Standards on Auditing (UK), using a structured, risk-based audit methodology.
Acumon holds a Public Interest Entity (PIE) audit licence, allowing the firm 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 also holds audit licences in several international financial centres, including the Cayman Islands, British Virgin Islands (BVI), Jersey, and Isle of Man. These licences enable the firm to support international corporate groups where entities are located across multiple jurisdictions.
Companies operating in Scotland may form part of wider UK or international groups, particularly in sectors such as investment management, technology, energy, and international trade. These structures can involve multiple operating entities, holding companies, and different financial reporting requirements. Acumon’s experience with group audits and cross-border structures supports the coordination of audit work, group consolidation, and financial reporting across multiple entities.
Acumon works with finance teams and boards to meet statutory audit requirements while considering the wider financial reporting and control environment. For organisations in Scotland that are growing, restructuring, or becoming part of more complex groups, the audit process can also help identify areas where reporting processes, governance arrangements, and internal controls may need to develop alongside the business.
Audit Capabilities
Acumon provides external audit services across a wide range of organisational structures and sectors.
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 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 audit services to groups that include entities in both the UK and key international financial centres.
Core Services
In addition to external audit services, Acumon provides a range of services that support financial reporting and governance.
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
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
Johnston Carmichael
Johnston Carmichael has a substantial Scottish presence, with offices including Aberdeen, Dundee, Edinburgh, Elgin, Forfar, Glasgow, Inverness, Inverurie and Stirling. Its audit and assurance practice serves organisations ranging from growing private companies to larger businesses and groups. The firm also has experience with financial services, funds, pension schemes and organisations operating across multiple jurisdictions.
The service range extends beyond the standard financial statement audit. Johnston Carmichael provides statutory audits, financial services and funds audits, group reporting support, financial reporting advice, IT audit and assurance, internal audit, CASS audit services and pension scheme audits. This range can suit organisations that need specialist assurance alongside their annual statutory engagement.
Key Facts
- Ideal for: Growing businesses, established groups and organisations needing specialist audit capabilities
- Core services: Statutory audit, financial audit, CASS audit, pension scheme audit, IT assurance, internal audit
- Specialization: Corporate and specialist assurance
- Industries: Financial services, energy, infrastructure, food and drink, rural businesses, technology and life sciences
- Location: Multiple offices across Scotland
Contact Information
- Website: johnstoncarmichael.com
- Facebook: www.facebook.com/JohnstonCarmichael
- Twitter: x.com/JC_Accountants
- LinkedIn: www.linkedin.com/company/johnston-carmichael-chartered-accountants-and-business-advisers
- Instagram: www.instagram.com/johnston_carmichael
- Address: Bishops Court, 29 Albyn Place, Aberdeen, AB10 1YL, UK
- Phone: 01224 212222
Armstrong Watson
Armstrong Watson provides audit and assurance services to businesses, charities and other organisations across Scotland and the North of England. Its Scottish footprint has expanded, including operations in Glasgow and an Edinburgh office opened in 2026. The firm’s audit work combines financial statement assurance with consideration of controls, risk and operational processes.
Its services include statutory audit, internal audit, independent reviews and other assurance engagements, plus grant audits and certification. Internal audit can be delivered on an outsourced or co-sourced basis, while grant audit work includes experience with UK and international funding bodies. Armstrong Watson also has published experience working with Scottish organisations such as Cricket Scotland.
Key Facts
- Ideal for: Businesses, charities and organisations looking for external and internal audit from the same wider practice
- Core services: Statutory audit, internal audit, independent reviews, assurance engagements, grant audits
- Specialization: Audit, controls and risk assurance
- Geographic coverage: Scotland and the North of England
- Scottish presence: Glasgow and Edinburgh, alongside wider regional coverage
Contact Information
- Website: www.armstrongwatson.co.uk
- Email: [email protected]
- Facebook: www.facebook.com/armstrongwatson
- Twitter: x.com/armstrongwatson
- LinkedIn: www.linkedin.com/company/armstrong-watson
- Instagram: www.instagram.com/armstrongwatsonllp
- Address: Caledonia House, 89 Seaward Street, Glasgow, G41 1HJ, UK
- Phone: 0808 144 5575
Wbg
Wbg is a full-service accountancy firm with offices in Glasgow, Edinburgh, Lanarkshire, Ayrshire, Aberdeen and Manchester. Audit sits alongside accountancy, advisory, corporate finance, tax, payroll and restructuring services, giving organisations access to related financial expertise where required.
The firm’s assurance capabilities include both external and internal audit. Its internal audit practice works across education, social housing, charities and organisations in the public and private sectors, with work covering governance, risk and internal controls. Wbg also has sector-specific experience in areas such as social housing and the third sector.
Key Facts
- Ideal for: Scottish organisations wanting external audit alongside internal audit and wider accountancy support
- Core services: External audit, internal audit, IT audit, investigations and forensic accounting
- Industries: Social housing, charities, education, healthcare, public sector and private businesses
- Location: Glasgow, Edinburgh, Lanarkshire, Ayrshire and Aberdeen
Contact Information
- Website: wbg.co.uk
- Email: [email protected]
- Address: 168 Bath Street, Glasgow, G2 4TP
- Phone: 0141 566 7000
Henderson Loggie
Henderson Loggie provides audit and assurance services through offices in Aberdeen, Dundee, Edinburgh and Glasgow. Its client base includes owner-managed businesses, commercial groups, multinational organisations, charities, universities and other not-for-profit entities.
The firm’s financial audit approach considers financial reporting requirements alongside business risks, systems and controls. Its team includes specialists in UK financial reporting and IFRS, while separate internal audit capabilities support organisations that need governance and risk assurance rather than, or in addition to, a financial statement audit. Henderson Loggie also provides grant audit and SOC-related assurance services.
Key Facts
- Ideal for: Commercial businesses, groups, charities, universities and public sector organisations
- Core services: Financial audit, audit and assurance, internal audit, grant audit, SOC assurance
- Specialization: Financial reporting, risk and governance assurance
- Location: Aberdeen, Dundee, Edinburgh and Glasgow
Contact Information
- Website: hlca.co.uk
- Email: [email protected]
- Facebook: www.facebook.com/HendersonLoggie
- LinkedIn: www.linkedin.com/company/hendersonloggie
- Instagram: www.instagram.com/hendersonloggie
- Address: The Vision Building, 20 Greenmarket, Dundee, DD1 4QB
- Phone: 01382 200055
AAB
AAB operates across Scotland as part of a wider UK and international professional services group, with Scottish offices including Aberdeen, Glasgow, Edinburgh, Bishopbriggs and Stirling. Its audit practice works with commercial organisations as well as charities, social housing providers, educational institutions and public sector bodies.
The audit and assurance team handles external audits, internal audits, charity audits, joint venture and contract audits, fraud investigation work and related project support. Joint venture and contract audit capabilities are particularly relevant to organisations operating through complex commercial arrangements, while the public and not-for-profit practice covers sectors with distinct reporting and governance requirements.
Key Facts
- Ideal for: Mid-market businesses, groups, public sector bodies and not-for-profit organisations
- Core services: External audit, internal audit, charity audit, joint venture audit, contract audit, fraud investigations
- Industries: Energy, infrastructure, construction, real estate, manufacturing, technology, education and not-for-profit
- Location: Multiple offices across Scotland
Contact Information
- Website: aab.uk
- Facebook: www.facebook.com/AABLLP
- Twitter: x.com/AABGroup_
- LinkedIn: www.linkedin.com/company/aab-accountants
- Instagram: www.instagram.com/_aabgroup
- Address: Kingshill View, Prime Four Business Park, Kingswells, Aberdeen, AB15 8PU, UK
- Phone: +44 (0)1224 625111
Dains
Dains is a UK accountancy and business advisory group with a significant presence in Scotland, including offices in Ayr, Dundee, Dunfermline, Edinburgh, Glasgow and Kilmarnock. The firm works with owner-managed businesses, private companies, larger corporate groups, charities and other organisations requiring audit and assurance support.
Its audit practice provides statutory audit alongside non-statutory audit and wider assurance engagements. These include grant claim audits, covenant reporting, agreed-upon procedures and audits of special-purpose financial information. Dains also supports organisations with financial reporting, risk and internal control matters, while its Scottish audit operations include firms registered to carry out audit work in the UK by ICAS.
Key Facts
- Ideal for: Scottish owner-managed businesses, private companies, corporate groups, charities and organisations requiring specialist assurance
- Core services: Statutory audit, non-statutory audit, grant claim audit, covenant reporting, agreed-upon procedures, special-purpose financial information audits
- Specialization: Corporate audit and wider assurance services
- Location: Ayr, Dundee, Dunfermline, Edinburgh, Glasgow and Kilmarnock
Contact Information
- Website: www.dains.com
- Email: [email protected]
- Facebook: www.facebook.com/DainsAcc
- LinkedIn: www.linkedin.com/company/dainsacc
- Address: 69 West George Street, Glasgow, G2 2LB
- Phone: 0141 204 6650
CT
CT, formerly known as Chiene + Tait, is a Scottish accountancy and advisory practice headquartered in Edinburgh, with offices in Glasgow and Inverness as well as locations outside Scotland. Its audit work is carried out through CT Audit Limited, which is registered to undertake audit work in the UK by ICAS.
The firm combines statutory audit with technical accounting, governance and related assurance support. Its Scottish footprint makes it particularly relevant for organisations that value local access to their audit team. CT also works with public and third-sector organisations, and in 2026 it was awarded a contract for external audit services involving North Lanarkshire Council-related entities.
Key Facts
- Ideal for: Businesses and organisations looking for an ICAS-registered Scottish audit practice
- Core services: Audit, assurance, technical accounting and governance support
- Regulatory status: CT Audit Limited is registered to carry out audit work in the UK by ICAS
- Location: Edinburgh, Glasgow and Inverness
Contact Information
- Website: ct.me
- Email: [email protected]
- LinkedIn: www.linkedin.com/company/ct-advisers
- Address: 61 Dublin Street, Edinburgh, EH3 6NL, UK
- Phone: 0131 558 5800
EQ Chartered Accountants
EQ Chartered Accountants provides audit and assurance services to companies, groups, LLPs and other organisations across Scotland. Its audit portfolio also includes charities, pension schemes, membership organisations and FCA-regulated businesses, giving the practice experience beyond conventional owner-managed company audits.
Audit teams are partner-led, with planning based around the organisation’s circumstances and industry. Related capabilities include reviews of financial systems and controls, investment appraisals and due diligence work. EQ also has experience delivering audit services to organisations in more remote parts of Scotland, supported by a combination of digital working and on-site involvement when needed.
Key Facts
- Ideal for: SMEs, groups, charities, pension schemes and regulated organisations
- Core services: Audit and assurance, financial systems and controls reviews, due diligence
- Industries: Engineering, manufacturing, hospitality, charities and other owner-managed sectors
- Geographic coverage: Clients across Scotland
Contact Information
- Website: www.eqaccountants.co.uk
- Email: [email protected]
- Facebook: www.facebook.com/eqaccountants
- LinkedIn: www.linkedin.com/company/eq-accountants
- Address: 14 City Quay, Dundee, DD1 3JA, UK
- Phone: 01382 312100
Forvis Mazars
Forvis Mazars maintains offices in both Glasgow and Edinburgh and provides audit and advisory services to Scottish organisations ranging from privately owned businesses to international companies, listed entities and public sector bodies. The Glasgow office works across sectors including healthcare, construction, manufacturing, engineering, life sciences and energy, while Edinburgh has particular exposure to financial services, hospitality, tourism and the public and social sectors.
Its wider audit practice provides financial audit, corporate reporting services and independent assurance and reviews. Audit teams can draw on an international network and shared methodologies, which can be useful for Scottish companies operating across several jurisdictions or subsidiaries of overseas groups.
Key Facts
- Ideal for: Mid-market, international, listed and complex Scottish organisations
- Core services: Financial audit, audit and assurance, corporate reporting, independent assurance
- Industries: Financial services, healthcare, manufacturing, construction, energy, public sector and life sciences
- Location: Glasgow and Edinburgh
Contact Information
- Website: www.forvismazars.com
- Facebook: www.facebook.com/ForvisMazarsGroup
- Twitter: x.com/ForvisMazarsGrp
- LinkedIn: www.linkedin.com/company/forvis-mazars-group
- Instagram: www.instagram.com/ForvisMazarsGroup
- Address: 100 Queen Street, Glasgow, G1 3DN, United Kingdom
- Phone: +44 141 227 2400
BDO UK
BDO has established Scottish offices in Edinburgh and Glasgow. Its Scottish teams advise owner-managed businesses, private and listed groups, public sector organisations, pension schemes and not-for-profit entities, with audit and assurance forming part of a broader accounting and advisory offering.
The firm’s audit services cover external audit, financial reporting, governance, risk and compliance, internal audit and risk assurance. BDO also works with IFRS, UK GAAP and international reporting requirements. Its external audit practice handles privately owned and PE-backed businesses alongside public sector and listed organisations, making it more relevant where audit requirements involve larger or structurally complex entities.
Key Facts
- Ideal for: Mid-market businesses, larger groups, listed organisations and financial services businesses
- Core services: External audit, financial reporting, internal audit, risk assurance, governance and compliance
- Specialization: Mid-market and complex corporate audit
- Location: Edinburgh and Glasgow
Contact Information
- Website: www.bdo.co.uk
- LinkedIn: www.linkedin.com/company/bdo-llp
- Instagram: www.instagram.com/lifeatbdo
- Address: 30 Semple Street, Edinburgh, EH3 8BL, United Kingdom
- Phone: +44 131 347 0347
Grant Thornton UK
Grant Thornton has offices in Aberdeen, Edinburgh and Glasgow, giving its audit teams direct coverage across several major Scottish business centres. Audit and assurance is offered alongside deals, forensic and investigation work, restructuring, tax and public sector services.
The firm’s independent audit capabilities span commercial organisations, listed and public interest entities, privately held and private equity-funded businesses, SMEs, not-for-profit organisations, financial services and the public sector. This breadth can make Grant Thornton relevant when the engagement requires access to sector-specific expertise beyond the core statutory audit team.
Key Facts
- Ideal for: Private companies, PE-backed businesses, larger groups, financial services and public sector organisations
- Core services: External audit, audit and assurance, wider assurance, forensic services
- Industries: Commercial businesses, financial services, not-for-profit and public sector
- Location: Aberdeen, Edinburgh and Glasgow
Contact Information
- Website: www.grantthornton.co.uk
- LinkedIn: www.linkedin.com/company/grant-thornton-uk
- Instagram: www.instagram.com/gt_trainees
- Address: Neo House, Riverside Drive, Aberdeen, AB11 7LH
- Phone: +44 (0)1224 925 986
RSM UK
RSM provides audit, tax and consulting services from an Edinburgh office and supports organisations ranging from entrepreneurial businesses to larger national and international groups. Its audit practice works with companies, private equity-backed organisations, charities, pension schemes and listed businesses.
Statutory audits follow a structured process covering business understanding, risk assessment, project management, communication and ongoing improvement. Technology is integrated into delivery through secure portals, data analysis, automation and digital audit tools. RSM also provides internal audit and controls services for organisations seeking assurance around strategic, financial and operational risks.
Key Facts
- Ideal for: Middle-market businesses, international groups and organisations with complex reporting requirements
- Core services: Statutory audit, external audit, internal audit, controls assurance and financial reporting support
- Specialization: Technology-supported corporate and group audits
- Location: Edinburgh
Contact Information
- Website: www.rsmuk.com
- LinkedIn: www.linkedin.com/company/rsm-uk
- Instagram: www.instagram.com/rsm.uk
- Address: 3rd Floor, 2 Semple Street, Edinburgh, EH3 8BL, United Kingdom
- Phone: +44 (0)131 659 8300
Deloitte UK
Deloitte has Scottish offices in Aberdeen, Edinburgh and Glasgow. The Glasgow office provides Audit & Assurance services and works with organisations in sectors including manufacturing, energy and the public sector, while the Edinburgh practice has significant exposure to financial services, including banking, asset management, pensions and insurance.
Its external audit practice provides independent opinions on financial statements and combines financial audit expertise with technology and specialist industry knowledge. Deloitte also offers broader assurance relating to accounting and reporting, controls and sustainability, which can be relevant to larger organisations whose assurance requirements extend beyond the statutory financial statements.
Key Facts
- Ideal for: Large companies, financial institutions, public sector organisations and complex groups
- Core services: External audit, financial statement audit, accounting and reporting assurance, controls assurance
- Industries: Financial services, manufacturing, energy, public sector and technology
- Location: Aberdeen, Edinburgh and Glasgow
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
KPMG UK
KPMG has offices in Aberdeen, Edinburgh and Glasgow and provides audit and assurance services to organisations across Scotland. Its Glasgow team includes specialists in audit, finance, technology, tax and advisory and works with sectors including financial services, energy, education and the public sector.
The firm’s audit practice focuses on independent financial reporting assurance supported by data and analytics. Beyond statutory financial statement work, its assurance services cover regulatory reporting, ESG information, KPIs, grants and contractual compliance, as well as controls assurance. This wider capability is particularly relevant to organisations dealing with multiple reporting frameworks or stakeholders seeking assurance over non-financial information.
Key Facts
- Ideal for: Large businesses, regulated organisations, financial services and public sector bodies
- Core services: Financial audit, assurance, regulatory assurance, controls assurance, ESG assurance
- Specialization: Complex corporate and regulated audit environments
- Industries: Financial services, energy, public sector, education, technology and private enterprise
- Location: Aberdeen, Edinburgh and Glasgow
Contact Information
- Website: kpmg.com
- Twitter: x.com/kpmguk
- LinkedIn: www.linkedin.com/company/kpmg-uk
- Address: Saltire Court, 20 Castle Terrace, Edinburgh, EH1 2EG, United Kingdom
- Phone: +44 131 222 2000
Conclusion
Audit providers in Scotland vary considerably in scale and focus. Some concentrate on owner-managed businesses, charities and Scottish SMEs, while others have specialist teams for financial services, public sector organisations, international groups, listed entities and more complex regulatory assignments. There are also meaningful differences in areas such as internal audit, CASS work, charity assurance, group reporting and technology-supported audit delivery.
There is no single provider that suits every organisation. The appropriate choice depends on company size, sector, reporting framework, regulatory obligations, group structure and the level of specialist assurance required. Comparing those factors alongside team continuity, geographic coverage and the practical audit process gives businesses a more useful basis for selecting an auditor than firm size alone.