Achieving ISO certification is a major milestone for any organisation. It signals maturity, reliability, and a commitment to quality, safety, and environmental responsibility. But one factor is often overlooked — the suitability of the certification body auditor assigned to your audit.

Not all auditors are the same. Their background, industry experience, technical understanding, and risk awareness can dramatically influence the audit experience and the outcome. Selecting the right Conformity Assessment Body (CAB) is important — but ensuring they assign the right auditor is critical.

Below are the key reasons why your auditor’s competence and industry fit matter, and why you should be asking your CAB specific questions before your audit is booked.

1. Industry Knowledge: Understanding Where Your Business Fits in the Vertical

Every industry has its own ecosystem — suppliers, regulators, customers, technologies, and operational norms. An auditor who understands your industry can:

• Recognise how your organisation fits into the broader supply chain
• Understand typical workflows, constraints, and compliance pressures
• Interpret ISO requirements in a way that makes sense for your operational reality
• Avoid irrelevant or unrealistic expectations

For example, an active medical device manufacturer operates in a completely different environment from a logistics company responsible for transporting those devices. When an auditor has no experience with either side of this supply chain, they can easily misjudge what “appropriate controls” look like, misinterpret risks, overlook context, or expect documentation that simply doesn’t apply.

This is why you should ask your CAB: “What industry experience does the assigned auditor have, and how familiar are they with businesses like ours?”

2. Knowledge of Processes and Methods Used in Your Operations

ISO standards are process‑based. To audit effectively, the auditor must understand the processes that drive your business — not just the clauses in the standard.

A competent auditor should be able to follow:

• Your operational flow from inputs to outputs
• How work is planned, controlled, monitored, and improved
• The methods your teams use to deliver products or services
• The practical realities of your day‑to‑day operations

When an auditor understands your processes, the audit becomes:

• More accurate
• More relevant
• More efficient
• Less disruptive

When they don’t, audits can become frustrating, misaligned, and overly theoretical.

This is why you should ask your CAB: “Does the auditor have experience auditing the types of processes we use?”

3. Understanding of the Technologies Used in Your Business

Modern organisations rely on a mix of technologies — from ERP systems and digital work instructions to specialised machinery, automation, or safety systems.

An auditor who understands your technology environment can:

• Assess controls and evidence more effectively
• Identify realistic risks and opportunities
• Avoid misinterpreting how digital systems support compliance
• Provide meaningful observations and improvement insights

An auditor without this understanding may:

• Ask for evidence that doesn’t exist in your digital workflow
• Misjudge the adequacy of controls
• Fail to recognise the strengths of your systems

This is why you should ask your CAB: “Is the auditor familiar with the technologies and systems commonly used in our industry?”

4. Knowledge of the Risks Associated With Your Activities

ISO standards all require a risk‑based approach. But risk looks different depending on the industry:

• Product and process lifecycle risks
• Manufacturing: machinery hazards, quality escapes, environmental emissions
• Construction: high‑risk work, subcontractor management, site‑specific hazards
• Logistics: fatigue, load restraint, chain of responsibility
• Professional services: data security, client confidentiality, service consistency

An auditor who understands your risk profile can:

• Evaluate controls appropriately
• Identify genuine gaps rather than theoretical ones
• Focus on what matters most to your business
• Provide a fair, balanced, and credible audit

This is why you should ask your CAB: “What experience does the auditor have with the risk profile of our industry?”

5. Understanding the Regulatory Framework That Applies to Your Products and Industry

Certification does not exist in isolation — especially in regulated sectors such as medical devices, or high‑risk industries. Your auditor must understand the regulatory framework that governs your products, your role in the supply chain, and the compliance obligations that sit behind your management system.

For example, an active medical device manufacturer must comply with software validation, electrical safety standards, and post‑market surveillance requirements under ISO 13485 and the Therapeutic Goods Act as well as potential data privacy legislative instruments, depending on the kinds of devices. A logistics provider transporting active devices, however, operates under a completely different set of expectations: storage environmental controls, traceability, transport security, and maintaining device integrity during distribution or Heavy Vehicle National Law (HVNL), as applicable

When an auditor does not understand the regulatory context of your operations, they may:

• Apply irrelevant requirements
• Misinterpret what “appropriate controls” look like
• Expect documentation that does not apply to your role
• Overlook critical compliance obligations
• Misjudge risk severity or regulatory impact

A credible audit requires an auditor who understands your regulatory obligations, whether you manufacture, import, distribute, or transport regulated products.

This is why you should ask your CAB: “What experience does the auditor have with the regulatory framework that applies to our products and our role in the supply chain?”

Final Thought: You Have the Right to Ask

Many organisations don’t realise they can request information about the auditor before the audit is scheduled. But you absolutely can — and should.

A well‑matched auditor doesn’t just assess compliance — they understand your business, respect your operational context, and conduct an audit that is fair, efficient, and aligned with ISO’s intent.

It’s also important to understand that all accredited Conformity Assessment Bodies (CABs) follow the same rules for determining auditor competence. Under ISO/IEC 17021‑1, CABs must ensure auditors are competent for the specific industry, technology, and risk profile they are assigned to audit. This means you are not asking for anything unusual or trying to influence the audit— you are simply asking the CAB to demonstrate how they meet their own accreditation requirements.

Asking your CAB about the auditor’s industry experience, process knowledge, technical understanding, and risk awareness is not only reasonable — it’s essential.

Choosing the right auditor sets the tone for your entire certification journey. It can mean the difference between a stressful, misaligned audit and a constructive, value‑adding experience that strengthens your management system.

Do you need help with your certification journey? Contact us. We are here to help.