01
Why European SaaS companies use ISO 27001
ISO 27001 provides a recognised structure for governing confidentiality, integrity, and availability risks. For SaaS businesses, that structure can strengthen customer due diligence, processor assurance, supplier oversight, incident readiness, and international market access.
- Answer enterprise and public-sector security reviews with controlled evidence
- Demonstrate accountable risk ownership across entities and technical teams
- Govern cloud providers, subprocessors, contractors, and critical software suppliers
- Support cross-border customer confidence with internationally recognised certification
02
Keep ISO 27001 and GDPR connected but legally distinct
GDPR Article 32 requires controllers and processors to implement security measures appropriate to risk. An ISMS can support risk assessment, technical and organisational controls, incident governance, supplier oversight, testing, and evidence, but certification does not resolve every GDPR obligation.
- Identify controller, processor, and subprocessor roles affecting the ISMS
- Connect personal-data risks to security controls, owners, incidents, and supplier decisions
- Align retention, access, encryption, resilience, testing, and breach workflows
- Maintain separate ownership for lawful basis, transparency, rights, transfers, and other legal duties
03
Build the ISMS around the real SaaS operating model
Vecta maps products, entities, people, cloud infrastructure, source code, deployment, support, customer data, suppliers, and locations before designing controls. Existing technical practices become evidence where they are effective; missing governance and records are built around actual workflows.
- Define scope, interested parties, obligations, risks, and risk-treatment decisions
- Control identity, development, changes, vulnerabilities, logging, incidents, and continuity
- Establish supplier assurance, objectives, competence, internal audit, and management review
- Prepare evidence and teams for the independent certification process
04
Use one evidence architecture for European and global buyers
ISO 27001, customer questionnaires, contractual security schedules, GDPR accountability, and SOC 2 may request overlapping evidence. A mapped control library reduces duplicated work while preserving the different purpose and assurance boundary of each requirement.
Frequently asked questions
Does ISO 27001 certification prove GDPR compliance?
No. ISO 27001 can provide strong evidence of governed information-security risk and controls, but GDPR includes wider legal obligations that must be assessed and fulfilled separately.
Can a non-EU SaaS company need GDPR-linked controls?
Yes. GDPR may apply to organisations outside the EU in defined circumstances, including offering goods or services to people in the EU or monitoring their behaviour. Obtain legal advice for applicability and role analysis.
Should subprocessors be included in the ISMS?
Supplier relationships affecting information security should be governed through risk-based selection, contracts, monitoring, change control, incident coordination, and exit arrangements. They are not necessarily inside the certification boundary as organisational units.
Can ISO 27001 and SOC 2 use the same evidence?
Many controls and records can be reused, but the frameworks have different criteria, governance, scope, assessment, and reporting models. A deliberate mapping prevents gaps and duplicate systems.
Who awards ISO 27001 certification?
An independent certification body audits the scoped ISMS and makes the certification decision. Vecta provides implementation, evidence, readiness, and programme support.
Primary sources