Why ISO 27001 still matters when you already have SOC 2
SOC 2 shows a snapshot of control effectiveness. ISO 27001 certifies that you run a management system. Sell outside North America and you will be asked for both.
- ISO 27001 certifies an ISMS — governance, not just controls.
- It is the default assurance currency in EMEA and APAC procurement.
- Roughly 70–80% of evidence overlaps with SOC 2 if you build one control graph.
A management system, not a checklist
ISO/IEC 27001:2022 certifies an Information Security Management System: defined scope, leadership commitment, a risk assessment methodology, a Statement of Applicability against the 93 Annex A controls, internal audit and management review. Annex A is the visible part; the clause 4–10 machinery is what an auditor really tests.
Why it opens different doors
European, UK, Middle East, Indian and Australian enterprises frequently list ISO 27001 as a hard procurement requirement — and many will not accept SOC 2 as a substitute, because a certification with a three-year cycle and surveillance audits carries different weight than an attestation report.
For anyone selling globally, holding both is the cheapest way to stop losing deals on paperwork.
The overlap dividend
- Access control, change management, encryption, logging and vendor evidence is shared.
- Your risk register feeds both the ISO risk treatment plan and SOC 2 risk assessment criteria.
- One policy set mapped to both Trust Services Criteria and Annex A avoids contradictory documents.
What KoComply automates
The Framework Agent maps every control you already satisfy to Annex A, generates the Statement of Applicability with justifications, and highlights only the genuine gaps. The Risk Agent maintains the register clause 6 requires, recalculated from live signals instead of an annual workshop.
Let an agent do this part for you
Free forever on Questionnaire, Infra Health and Codebase Health. Upgrade when you're ready for the full program.
Start free