Reviewed by Louisa Cilenti · CLO · verified 1 September 2026ISO 27001 for data centres
ISO 27001 is the international standard for information security management systems. For a data centre operator it governs how information security risk is assessed and treated across physical security, access control, operations, supplier relationships and incident response — and it is the certificate most frequently demanded in customer due diligence.
It shares the Annex SL management system structure with ISO 9001, 14001 and 45001, which means document control, internal audit, competence and management review can be run once across all of them rather than four times.
What a data centre specifically has to show.
Risk assessment and treatment
A repeatable method, applied, with a treatment plan and residual risk accepted by someone with the authority to accept it.
Statement of Applicability
Every Annex A control either applied with justification or excluded with justification. The document auditors turn to first.
Physical and environmental security
The clauses where a data centre should be strongest, and where evidence is usually plentiful — access records, zoning, visitor control, environmental monitoring.
Supplier and customer arrangements
Security requirements flowed down to suppliers and reflected in customer agreements, with evidence of monitoring rather than one-time assurance.
Incident management and continuity
Recorded incidents, response evidence, and tested continuity arrangements.
What the auditor actually asked us for.
We hold ISO 9001, 14001 and 27001 with zero non-conformities. This is the evidence list our own stage 2 audit worked from — original material, not a restatement of the standard.
Common questions
Does ISO 27001 cover GDPR?
Not on its own. ISO 27001 governs information security management, while GDPR imposes data protection obligations including lawful basis, data subject rights and records of processing under Article 30. A 27001 management system is a strong foundation for demonstrating GDPR compliance, but the two are not interchangeable.
Can one management system cover 27001, 9001 and 14001?
Yes, and it is the normal approach. The shared Annex SL clauses let you run one document control system, one internal audit programme, one competence framework and one management review covering all certified standards.
What do customers actually ask for?
Usually the certificate, the Statement of Applicability, the scope statement, and the most recent surveillance audit outcome. Having those four assembled shortens most due diligence exchanges considerably.
See how close you already are.
Upload the policies and registers you already hold. The assessment scores them against the EU Code of Conduct practices and itemises what is partially and non-compliant, in about ten minutes.
Talk to us- ISO/IEC 27001:2022 · Information security, cybersecurity and privacy protection — Information security management systems — Requirements
- ISO/IEC 27002:2022 · Information security, cybersecurity and privacy protection — Information security controls
- Directive (EU) 2022/2555 · NIS2 Directive
- Regulation (EU) 2016/679 · General Data Protection Regulation
Reviewed by Louisa Cilenti. Last verified 1 September 2026.
