Product verification

AI TrustMark vs ISO/IEC 42001 and UKAS

AI TrustMark Bronze, Silver and Gold record investigation depth for a named product or organisation. They are complementary to ISO/IEC 42001 and are not UKAS accreditation or BSI certification.

AI TrustMark Bronze, Silver and Gold describe how deeply evidence was examined for a named scope. They are not a league table, not UKAS accreditation, and not ISO/IEC 42001 certification.

Questions buyers ask

Is AI TrustMark ISO/IEC 42001 certification? No. ISO/IEC 42001 is an AI management-system standard certified by a certification body. AI TrustMark Bronze, Silver and Gold record independent investigation depth of a named organisation or product. They are an on-ramp, not a rival to ISO/IEC 42001.

Is AI TrustMark UKAS-accredited? No. UKAS accredits certification bodies. AI TrustMark is an independent UK verification record and does not sell UKAS accreditation or government approval.

Does Bronze, Silver or Gold change directory position? No. Those labels describe examination depth. Directory ranking, where it exists, is earned only from qualifying verified customer reviews. Payment never buys score, CERTIFIED, or list position.

Is Bronze a rival to BSI or UKAS? No. Bronze is the external-assurance on-ramp: what can independently be verified from outside. It is not BSI certification and not UKAS accreditation.

How does AI TrustMark relate to ISO/IEC 42001? They are complementary layers. ISO/IEC 42001 covers organisational AI management systems. AI TrustMark Assurance examines named product or supplier evidence at Bronze, Silver or Gold depth. Mapping between them is not accreditation.

Related reading: assurance overview, methodology, and independence.

Editorial last reviewed 2026-09-14

Comparison of AI TrustMark, ISO/IEC 42001, UKAS and AIGAS
SchemeWhat it isWho it is forWhat a result meansWhat it is not
AI TrustMarkIndependent verification of a named AI organisation and, where in scope, a named product. Bronze, Silver and Gold record investigation depth.AI suppliers and products listed for UK and international buyers.A live, named-scope verification record. An Assurance Score and impact class are recorded only after a completed certified assessment. Directory stars are a separate customer-evidence stream.Not ISO/IEC 42001 certification, not UKAS accreditation, and not a government approval.
ISO/IEC 42001The international management-system standard for artificial intelligence (AIMS). It specifies how an organisation governs AI, not a TrustMark product depth.Organisations that implement an AI management system and seek certification against that standard.Certification of the organisation’s AI management system by a certification body. It does not itself rank AI products or issue TrustMark Bronze/Silver/Gold.Not a substitute for product-level customer evidence, and not issued by AI TrustMark.
UKASThe United Kingdom’s national accreditation body. UKAS accredits organisations that certify others, including certification bodies for ISO/IEC 42001.Certification bodies (and, through them, the certificates they issue). Buyers rely on UKAS to check the checker.Accreditation of a certification body’s competence to certify against named standards. UKAS does not certify AI products or operate the AI TrustMark scheme.AI TrustMark is not a UKAS-accredited certification body and does not sell UKAS accreditation.
AIGASThe AI Governance Assurance Standard, a sector scheme aimed at UK accounting firms. It uses its own Bronze/Silver pathway as a practical step toward ISO/IEC 42001.UK accounting, bookkeeping and payroll firms adopting AI in professional services.Sector-specific governance assurance for firms. ISO/IEC 42001 remains a separate accredited-certification step beyond that scheme.Not a general AI product directory, and not interchangeable with AI TrustMark Bronze/Silver/Gold.

How to use this in procurement

Treat AI TrustMark as reusable supplier and product evidence: what was checked, at what depth, and whether any certified assessment has recorded an Assurance Score or impact class. Do not treat a TrustMark as ISO/IEC 42001, UKAS accreditation, or AIGAS membership. Where a buyer needs an accredited management-system certificate, that remains a separate engagement with an accredited certification body.

Bronze, Silver and Gold on this site never mean a ranking of bad, good and best providers. They do not change directory position. Directory ranking, where it exists, is earned only from qualifying verified customer reviews.

Depth definitions live on assurance and in the methodology. Official publications we map against, without claiming accreditation, are listed with the methodology.

Questions buyers ask

Is AI TrustMark ISO/IEC 42001 certification?
No. ISO/IEC 42001 is an AI management-system standard certified by a certification body. AI TrustMark Bronze, Silver and Gold record independent investigation depth of a named organisation or product. They are an on-ramp, not a rival to ISO/IEC 42001.
Is AI TrustMark UKAS-accredited?
No. UKAS accredits certification bodies. AI TrustMark is an independent UK verification record and does not sell UKAS accreditation or government approval.
Does Bronze, Silver or Gold change directory position?
No. Those labels describe examination depth. Directory ranking, where it exists, is earned only from qualifying verified customer reviews. Payment never buys score, CERTIFIED, or list position.
Is Bronze a rival to BSI or UKAS?
No. Bronze is the external-assurance on-ramp: what can independently be verified from outside. It is not BSI certification and not UKAS accreditation.
AI TrustMark vs ISO 42001 and UKAS | Bronze Silver Gold explained · AI TrustMark