ISO 27001 and ISO 42001 External Audits

Information security and AI governance are no longer discrete compliance activities. They are core to how organisations manage risk, make decisions, and operate under scrutiny.

Rheinberry provides independent audit and assurance services that test whether governance works in practice - across both security and AI systems.

Click the button below to learn about Rheinberry's ISO 27001 External Audit

Click the button below to learn about Rheinberry's ISO 42001 External Audit

Audit Readiness Review - Establish your baseline

A structured, independent view of your current position against ISO 27001 or ISO 42001.

Best suited for:

• Organisations preparing for certification 
• Internal validation of current maturity 
• Early-stage governance development 

What this covers:

• Scope and context 
• Governance structure and accountability 
• High-level documentation and control review 
• Gap assessment and prioritised actions 

Typical engagement:

• 1–2 weeks 
• Limited stakeholder interviews 
• Focused document review 

Outcome: Clarity on where you stand and what needs to change.

External Audit Assessment - Test governance in practice

A detailed, evidence-based review of how your management system operates in reality.

Best suited for:

• Organisations seeking independent assurance 
• Pre-certification confidence 
• Customer, board, or partner scrutiny 

What this covers:

• Policies, controls, and operational processes 
• Stakeholder interviews and walkthroughs 
• Evidence of risk management and decision-making 
• Findings aligned to ISO expectations 

Typical engagement:

• 2–4 weeks 
• Multiple stakeholder interviews 
• End-to-end governance walkthrough 

Outcome: A credible, independent assessment of governance effectiveness.

Integrated Governance Review - Security and AI assessed as one system

A combined audit across ISO 27001 and ISO 42001, reflecting how organisations actually operate.

Best suited for:

• Organisations using AI alongside sensitive data 
• Complex or regulated environments 
• Situations where governance must be demonstrably joined-up 

What this covers:

• Security and AI governance structures 
• Cross-cutting risks, controls, and accountability 
• Supplier, data, and lifecycle governance 
• System-level dependencies and weaknesses 

Typical engagement:

• 3–6 weeks 
• Cross-functional stakeholder engagement 
• Integrated governance analysis

Outcome: A unified view of governance across security and AI.

Why Rheinberry

Most audit services assess whether documentation exists. Rheinberry assesses whether governance functions.

Optional support

Where required, Rheinberry can support organisations beyond audit:

• Executive and board briefings 
• Certification readiness workshops 
• Targeted deep-dive reviews 
• Governance remediation planning 

Ongoing quarterly assurance (typically structured as light-touch retained engagements)