SOC 2 and ISO/IEC 42001 are not substitutes — one attests to information security and operational trust, the other to AI-specific governance. Mature AI vendors carry both.
Last updated April 27, 2026 · Every fact traceable to a public source
SOC 2 (System and Organization Controls 2) is an [AICPA attestation](https://www.aicpa-cima.com/topic/audit-assurance/audit-and-assurance-greater-than-soc-2) against the Trust Services Criteria — Security, Availability, Processing Integrity, Confidentiality, and Privacy. ISO/IEC 42001:2023 is an international management-system standard specifically for AI. The two are complementary: SOC 2 covers the org’s security posture; ISO 42001 covers AI governance.
SOC 2 attests that an organization has designed (Type I) or has operated effectively (Type II) controls aligned with the AICPA Trust Services Criteria. Most enterprise procurement teams ask for Type II because it covers a 6 or 12-month operating period rather than a point in time. SOC 2 is not a certification — it is an attestation by a licensed CPA firm — and the report is generally shared under NDA.
ISO/IEC 42001:2023 is a certifiable management-system standard. An accredited certification body issues a certificate after Stage 1 (documentation review) and Stage 2 (implementation audit). Annex A controls cover AI-specific topics: AI policy, internal organization, resources, AI-system impact assessment, AI-system lifecycle, data, information for interested parties, use, third-party relationships. The certificate is publicly verifiable on the certification body’s register.
Mostly not. SOC 2 controls focus on access management, change management, monitoring, incident response, and confidentiality — the same controls a SaaS vendor would have for any service. ISO 42001 controls focus on AI-specific risk: training-data quality, model evaluation, post-market monitoring, human oversight design, AI impact on individuals. A few areas overlap (third-party management, change management) but the bulk is distinct.
Today, SOC 2 Type II is still the table-stakes control evidence for AI vendors selling into US enterprises. ISO/IEC 42001 is now consistently asked for in EU AI Act-driven procurements and US federal pursuits, and we expect it to become standard within 12–18 months. Vendors targeting regulated industries (financial services, healthcare, public sector) typically pursue both plus ISO 27001.
Public ranges: SOC 2 Type II first-year program (gap assessment + remediation + Type II audit) typically lands USD 30k–150k depending on scope and firm. ISO/IEC 42001 first-year (gap + implementation + Stage 1 + Stage 2) typically lands USD 50k–250k for organizations that already have ISO 27001, more starting from scratch. Use [our cost calculator](/cost/calculator) for a model tied to your specific scope.
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