ISO 27001 Internal Audit Services
Your ISO 27001 certification requires annual internal audits to maintain compliance and prepare for surveillance audits. Atoro's experienced internal auditors conduct thorough reviews that identify gaps before external auditors do, ensuring you stay certified and avoid costly non-conformities.
Over 200 SaaS companies rely on our internal audit expertise to maintain ISO 27001 certification without internal overhead. Our fixed-fee structure includes comprehensive audit reports, remediation guidance, and ongoing support until your next surveillance audit. Transform internal auditing from compliance burden to continuous security improvement.
Service overview
Our expert-led internal audit methodology ensures continuous ISO 27001 compliance while optimising your security management system effectiveness. We provide comprehensive gap analysis, remediation support, and audit readiness for growing SaaS companies.
- Comprehensive ISMS review and gap analysis for your business. Systematic evaluation of security controls, risk assessments, and policy effectiveness against current operations.
- Expert audit execution and findings management aligned to your business goals. Professional internal audit following ISO guidelines with actionable remediation roadmaps.
- Real-time remediation support and guidance for strategic planning execution. Slack-based collaboration ensuring efficient gap closure and control improvement implementation.
- Structured approach to achieving your surveillance audit readiness. Fixed-fee engagement with ongoing support until successful external audit completion.
Key features
Avoid Surveillance Audit Surprises
External surveillance audits can be stressful when you're unprepared. Our internal audits act as a dress rehearsal, identifying potential non-conformities and areas for improvement before external assessors arrive. We review your ISMS against the latest ISO 27001 requirements, ensuring your controls remain effective and your documentation stays current. This proactive approach virtually guarantees smooth surveillance audits with no unexpected findings.
Expert Auditors Who Know What Matters
Our internal audit team includes former external auditors and certified information security professionals who understand exactly what surveillance auditors look for. This insider perspective helps us focus on areas that matter most for maintaining certification. We don't just check boxes – we evaluate the effectiveness of your controls and identify opportunities to strengthen your security posture while streamlining compliance processes.
Effective internal auditing requires systematic evaluation of security controls and management processes. We begin with detailed analysis of your current ISMS implementation to identify improvement opportunities and compliance gaps, working with you to achieve measurable security enhancement.
Auditor Perspective
Full ISMS Review
Action Plans
General questions
We conduct comprehensive reviews of your entire ISMS including information security policies, risk management processes, control implementation, competence and awareness programs, operational planning, and management review processes. We also evaluate the effectiveness of controls and identify areas for improvement.
Non-conformities are normal and expected – they're why internal audits exist. We provide detailed findings with specific remediation recommendations and realistic timelines. Our team supports you through the corrective action process to ensure issues are resolved before your next surveillance audit.
While ISO 27001 allows internal audits by your own team, external auditors bring objectivity and fresh perspective that internal teams often lack. Our auditors also have deep experience with surveillance audit expectations, helping you avoid common pitfalls that internal-only audits might miss.
While ISO 27001 allows internal audits by your own team, external auditors bring objectivity and fresh perspective that internal teams often lack. Our auditors also have deep experience with surveillance audit expectations, helping you avoid common pitfalls that internal-only audits might miss.

Need help with your ISO 27001 Internal Audit?
Book a free internal audit scoping call with our certified auditors.