How to choose a certification body

A good certification body is accredited for the standard and activity you need, understands your sector, and explains clearly what it will audit and for how long. Price matters, but only once quotes cover the same scope and audit effort. The certificate is only as useful as the trust that others place in the body behind it.

1. Check accreditation first

Accreditation is an independent check that a certification body is competent. It is given for a defined scope, so "accredited" on its own tells you little. Ask:

Which accreditation body accredited it?
Does the accreditation cover your standard, for example ISO 9001 or ISO/IEC 27001?
Does it cover your sector or activity?
Is the accreditation current, and does the certificate it will issue show the accreditation mark?

Accreditation bodies publish directories of the bodies they accredit. Check there, not only the certification body's own website. Internationally, accreditation bodies cooperate through Global Accreditation Cooperation (Global ACI), which took over the work of the IAF and ILAC on 1 January 2026. Our pages on accreditation explained and accreditation check go step by step.

Whether a buyer or tender requires an accredited body is for that buyer to say. Ask them, or read the tender document.

2. Match the scope

Ask the body to confirm in writing that it can certify your activities in your sector. A body may be accredited for ISO 9001 in general but not for a technical area you work in. Describe your scope plainly, as set out in what to prepare before requesting a quote.

3. Look for relevant experience

Ask whether its auditors have worked in your sector, and whether they can audit in the language your team uses. You are not asking for client names. You are asking whether the body understands your type of work, whether that is construction, food and beverage, IT and SaaS or another industry.

4. Understand impartiality

A certification body should be impartial. ISO/IEC 17021-1 contains requirements on this. In practice, ask whether the body provides consultancy to the same clients it audits, and how it manages that risk. You should be able to get a straight answer.

5. Questions worth asking

How many audit days do you propose, and how did you calculate them?
What is included: Stage 1 and Stage 2 audits, certificate issue, and surveillance audits in later years?
What extra charges can arise, for example travel, extra audit days, or rescheduling?
How are nonconformities handled, and what happens if they are not closed on time?
What are the arrangements for the certificate if the standard changes edition?
Can audits be done remotely where appropriate?
Who decides on certification, and is that person different from the audit team?

If answers are vague, that is information too.

6. Comparing quotes without being misled

Quotes are only comparable when they cover the same things. Before you compare figures, put them side by side and check:

the same standards and the same scope wording;
the same number of sites and people;
audit days and what they cover;
the first-year and the later surveillance years;
recertification costs after the certificate cycle;
the same currency, tax treatment and payment terms.

Be careful with a quote that is far lower than others. It may rest on fewer audit days than your scope needs, or exclude costs that appear later. A promise of a very short timeline or a guaranteed outcome is a warning sign, since only the audit and the body's decision can establish certification. Read how to spot misleading ISO certificate claims. For cost drivers in general, see certification cost.

7. Think about the long run

Certification is a cycle of surveillance audits and recertification, not a one-off event. See surveillance and recertification. You can change body later, but it takes effort, as described in certificate transfer. Choose a body you can work with for a few years.

How we help

MIYAAR CONNECT does not audit or certify. We connect your inquiry with relevant independent certification bodies and explain how we choose in how we match and how referrals work. You decide which body to engage. We do not name bodies or endorse them in this guide.