ISO 27001 Internal Audit Services

Independent internal audit for your information security management system.

ISO/IEC 27001:2022 requires internal audits to be conducted objectively and impartially, and auditors cannot audit their own work. In smaller organisations the person who built the ISMS is often the person auditing it, which creates an independence problem that certification bodies increasingly raise.

Assurance Bureau delivers ISO 27001 internal audits that are independent, evidence-based, and genuinely useful to the organisations we work with.

What is an ISO 27001 Internal Audit?

An ISO 27001 internal audit is a formal assessment of your ISMS against the requirements of ISO/IEC 27001:2022. It covers both the management system clauses (Clauses 4 to 10) and the Annex A controls applicable to your organisation, producing a findings register that supports management review and continual improvement.

"We engaged Daniel to run our internal audit before our ISO 27001 Stage 2. He ran ours the way a Stage 2 actually runs and graded findings the same way, which gave us a clear line between what had to be closed and what could wait. Our external auditor listed the internal audit as a strength in her report." - Melissa Pollard, Executive Manager of Digital Health & Technology, HNECC PHN

Our services

  • Standalone Internal Audit - independent delivery of your ISO 27001 internal audit against Clauses 4 to 10 and applicable Annex A controls, producing a formal findings register and audit report

  • Internal Audit Program Setup - development of your internal audit program, methodology, schedule, and templates for organisations that have no existing internal audit function or need to uplift their current approach

  • Pre-Certification Internal Audit - targeted internal audit ahead of Stage 2 certification to identify and address conformance gaps before your certification body arrives

  • Surveillance Readiness Audit - independent review of your ISMS ahead of surveillance to confirm ongoing conformance and identify any areas requiring attention

Who this is for

  • Organisations preparing for ISO 27001 certification and needing an independent internal audit

  • Certified organisations approaching surveillance or recertification

  • Organisations with no internal audit function or methodology needing program setup support

  • Organisations that have been conducting internal audits internally and want independent external delivery for objectivity and rigour

Sector experience

Assurance Bureau has delivered ISO 27001 audit and advisory services across:

  • Government and government-adjacent organisations

  • Healthcare and primary health networks

  • Education providers and registered training organisations

  • Financial services

  • Telecommunications

Why Assurance Bureau

  • Extensive experience with how ISO 27001 evidence is assessed at Stage 2 and surveillance, so findings are graded the way a certification body would grade them

  • ISO 27001:2022 Lead Auditor and Senior Lead Implementer credentials

  • Experience conducting ISO 27001 audits on behalf of certification bodies and internal audit clients across government, healthcare, education, financial services, and telecommunications

  • Independent of the organisations we audit, ensuring objective and unbiased findings

Get in touch

Ready to discuss your ISO 27001 internal audit requirements? Contact us to arrange a no-obligation scoping conversation.Extensive experience with how ISO 27001 evidence is assessed at Stage 2 and surveillance, so findings are graded the way a certification body would grade them