Is SOC 2 enough for European clients?
What you need to know
SOC 2 is a brilliant starting point. If your SaaS company has invested in the audit, you've already done serious work — documented controls, demonstrated operating effectiveness, and given prospects something credible to review. For US buyers, that's often all they need.
For European clients, though, SOC 2 alone won't always close the gap.
Why SOC 2 doesn't fully satisfy European buyers
SOC 2 is a voluntary attestation framework developed by the AICPA, designed primarily for the US market. It produces a confidential audit report rather than a publicly shareable certificate, and it maps to AICPA Trust Services Criteria — not to any EU regulation.
European procurement teams have a different checklist. They're asking about GDPR compliance, ISO 27001 certification, and, increasingly, alignment with the NIS2 Directive. A SOC 2 report is useful context, but it doesn't answer these questions on its own.
Research shows that EU procurement teams tend to lean toward ISO 27001 because it shows up most consistently in vendor-risk questionnaires. ISO 27001 is accredited under the International Accreditation Forum and recognised across 150+ countries — your certificate is verifiable and displayable. A SOC 2 report, by contrast, is typically shared under NDA.
The three frameworks European clients care about
GDPR is mandatory EU law. It governs how personal data about EU residents is collected, stored, and processed. SOC 2 controls can align with Article 32's technical security requirements — but GDPR also demands lawful processing bases, data subject rights, Data Processing Agreements, and DPIAs. None of that is covered by a SOC 2 audit. Explore our compliance services if you're working through these obligations.
ISO 27001 is the gold standard for information security in Europe. It requires an organisation-wide Information Security Management System (ISMS) rather than service-scoped controls. The good news: SOC 2 controls largely overlap with ISO 27001 requirements, so your audit work isn't wasted. A comparison of ISO 27001 vs SOC 2 is a useful starting point for understanding where the gaps are.
NIS2 became enforceable in October 2024 and expanded mandatory cybersecurity obligations to thousands of organisations operating in or supplying the EU — including SaaS vendors as supply-chain participants. Under NIS2, boards carry personal accountability for cybersecurity oversight, and incident reporting windows are strict (24 hours for initial notification, 72 hours for a detailed report). SOC 2 doesn't address any of this. Our guide to the NIS2 Directive covers what's in scope.
SOC 2 is still worth having — here's why
None of this means SOC 2 is redundant. If you sell to US clients alongside European ones, you'll need it. And the control overlap with ISO 27001 means a well-executed SOC 2 audit gives you a strong foundation to build from, not something to discard.
Many SaaS teams pursue dual compliance — SOC 2 for the US market, ISO 27001 for Europe — and find the second certification significantly less burdensome once the first is in place.
What to do if European clients are asking questions
If you're hearing pushback from European prospects, or if EU-based deals are stalling at the security review stage, the practical path forward looks like this:
- Conduct a gap analysis between your existing SOC 2 controls and ISO 27001 requirements and GDPR obligations.
- Prioritise ISO 27001 certification — it addresses European procurement requirements and aligns with NIS2 expectations.
- Put GDPR documentation in place — DPAs, records of processing activities, and a clear response process for data subject requests.
- Assess your NIS2 exposure — particularly if any of your European clients operate in regulated sectors.
At Securance, we work with SaaS and tech teams across Europe to navigate exactly this kind of multi-framework complexity. Our Single Audit, Multiple Standards approach means you don't have to run separate, disconnected programmes for each requirement. A cybersecurity risk assessment aligned with ISO 27001 and NIS2 is often the right first step.
SOC 2 opens doors. In Europe, ISO 27001, GDPR, and NIS2 are what keeps them open.