
When implementing an ISO Standard, achieving full ISO certification is often a key objective. This can help businesses stand out in tenders, meet stakeholder requirements, and demonstrate a commitment to best practice. However, certification is only valid if issued by a provider with UKAS accreditation.
Not all certification providers are the same. Certificates issued without UKAS accreditation are not recognised, which can lead to delays, additional costs, and potential reputational risks.
What is UKAS Accreditation?
UKAS is the United Kingdom Accreditation Service – the National Accreditation Body appointed by the government to assess and accredit organisations that provide certification and verification services.
Certification bodies with UKAS accreditation have been independently assessed to confirm they operate in line with best practice and meet UK regulatory requirements. Each certification body must undergo its own accreditation process for every ISO Standard it offers.
Outside the UK, national accreditation bodies operate in other countries. These can be checked via the ISO Global Register. In the UK, UKAS provides an online accreditation checker to verify a provider’s status.
Why Choose UKAS Accreditation?
Working with a UKAS-accredited certification body ensures:
- Recognition – your certificate is accepted by customers, regulators, and in tenders.
- Compliance – accredited bodies are assessed for competence against international standards.
- Consistent auditing – impartial, evidence-based assessments that help improve systems.
- Reputation protection – avoiding the risk of using a certificate that is not recognised.
- Cost efficiency – avoiding re-certification costs due to non-accredited providers.
- Appropriate contract terms – reputable providers typically use a three-year certification cycle.

Points to Check Before Choosing a Provider
- Is UKAS accreditation clearly stated and verifiable?
- Do they avoid providing consultancy and certification to the same client?
- Are prices tailored to your business rather than fixed rates online?
- Are contract lengths reasonable and transparent?
How THSP Supports the Process
THSP works with a trusted partner to connect you with UKAS-accredited certification bodies. They can request quotes on your behalf, helping you compare options and choose the right provider.