Auditor Directory
Top Compliance Auditors in Ireland
About Ireland Auditors
8 compliance audit firms with offices or operations in Ireland. The list below covers the major frameworks assessed locally, the dominant firm sizes, and where the firms are concentrated. Use the filters to narrow by framework, firm size, or budget.
Frameworks most audited in Ireland
Firm size mix
- Large (500+ staff)
- 2
- Mid-size (51–500)
- 2
- Boutique (≤50)
- 4
Top cities
- Dublin
- 5
- Oxford
- 1
- Johannesburg
- 1
- London
- 1
How to choose a Ireland auditor
- Scope match: confirm the firm has signed off audits for the framework you need in the last 12 months.
- Local presence: on-site evidence collection and interviews are faster when the auditor has staff in your city.
- Three quotes: for identical scopes, pricing can vary two to three times across the firms listed here.
- References: ask for one reference customer in your industry and company stage.
Top Compliance Auditors in Ireland is one of many regions in the global auditor directory. To find auditors by framework, see the framework-based directory.
8 firms — interactive filtering loads below.
BDO Ireland
Dublin, Ireland
BDO Ireland offers SOC, ISO 27001, and GDPR compliance audit services.
Certification Europe
Dublin, Ireland
Certification Europe is an Irish-based accredited certification body specializing in ISO 27001 and management system certifications across Europe.
Dionach
Oxford, United Kingdom
Dionach is an Oxford-based cybersecurity firm offering PCI DSS QSA, ISO 27001, and Cyber Essentials assessments.
Edgescan
Dublin, Ireland
Edgescan provides vulnerability management and ISO 27001 compliance assessments.
Integrity360
Dublin, Ireland
Integrity360 is an Irish cybersecurity firm offering ISO 27001, SOC 2, PCI DSS, and NIS2 assessments.
Mazars Ireland
Dublin, Ireland
Mazars Ireland is a leading Irish audit firm offering SOC 2, ISO 27001, and GDPR compliance assessments.
SACAS
Johannesburg, South Africa
SACAS is a South African accredited certification body offering ISO 27001 and management system audits across Southern Africa.
Smith & Williamson
London, UK
Smith & Williamson is a UK-based chartered accountancy and advisory firm offering ISO 27001, SOC 2, GDPR, and Cyber Essentials audit services.