SOC 2 and ISO 27001 are the two leading information security frameworks: SOC 2 is a US-based attestation report evaluated by a CPA firm against the AICPA Trust Services Criteria, while ISO 27001 is an internationally recognised certification for an Information Security Management System (ISMS) issued by an accredited certification body.
If you're a SaaS company, managed service provider, or any organisation that handles customer data, you've almost certainly been asked: "Do you have SOC 2?" or "Are you ISO 27001 certified?" These two frameworks are the gold standard for demonstrating information security maturity to customers, partners, and regulators — but they're not the same thing, and choosing the right one (or both) depends on your market, your customers, and your strategic goals.
SOC 2 is an attestation report based on the AICPA's Trust Services Criteria, evaluated by a CPA firm. ISO 27001 is an international standard for information security management systems (ISMS), certified by an accredited certification body. Both prove you take security seriously, but they do so in fundamentally different ways.
This guide provides a thorough, practical comparison to help you make the right decision. Organisations that need help scoping either programme can draw on ISO 27001 and cybersecurity services to run the gap analysis and prepare for audit.
| Quick Reference | SOC 2 | ISO 27001 |
|---|---|---|
| Full name | Service Organization Control 2 | ISO/IEC 27001:2022 |
| Governing body | AICPA (American Institute of CPAs) | ISO/IEC (International Organization for Standardization) |
| What it is | Attestation report (opinion on controls) | Certification (pass/fail against a standard) |
| Who issues it | CPA firm (licensed auditor) | Accredited certification body |
| Geographic preference | Primarily US and North America | Global (especially EU, UK, Asia-Pacific) |
| Scope | Defined by the service organisation | Defined by the organisation (ISMS scope) |
| Validity | 12-month reporting period (Type II) | 3-year certificate with annual surveillance audits |
| Cost range | $30,000–$150,000 (audit fees) | $15,000–$80,000 (certification fees) |
| Timeline | 3–6 months (Type I); 6–12 months (Type II) | 6–12 months (initial certification) |
| Control framework | Trust Services Criteria (TSC) | Annex A controls (93 controls in 4 themes) |
| Public availability | Restricted (shared under NDA) | Certificate is public; audit report is not |
| Can you display a logo/badge? | No official SOC 2 "badge" | Yes — ISO 27001 certification mark |
Key Takeaways
- SOC 2 is an attestation report preferred by US customers — it evaluates whether your controls are designed and operating effectively over a period
- ISO 27001 is an international certification preferred by European and global customers — it certifies that you have a formal Information Security Management System (ISMS)
- SOC 2 focuses on controls for a specific service; ISO 27001 focuses on the management system governing all information security
- SOC 2 vs ISO 27001 cost: SOC 2 audit fees are generally higher ($30K–$150K) but ISO 27001 has higher internal implementation costs
- Many organisations pursue both — they share roughly 70–80% of their control requirements, making a combined approach cost-effective
- If you sell primarily to US enterprise customers, start with SOC 2; if your market is Europe or global, start with ISO 27001; if both, pursue them simultaneously
- NIS2 and DORA increasingly reference ISO 27001 as a benchmark for cybersecurity measures — giving ISO 27001 additional regulatory weight in the EU
- Neither SOC 2 nor ISO 27001 is "better" — they serve different purposes and different audiences
Table of Contents
- What Is SOC 2?
- What Is ISO 27001?
- SOC 2 vs ISO 27001: Detailed Comparison
- Trust Services Criteria vs ISO 27001 Controls
- The Audit Process Compared
- Cost Comparison: SOC 2 vs ISO 27001
- Timeline Comparison
- Which Should You Choose?
- Decision Framework
- Pursuing SOC 2 and ISO 27001 Together
- How SOC 2 and ISO 27001 Map to Each Other
- SOC 2 and ISO 27001 in the Context of EU Regulations
- Common Myths Debunked
- Frequently Asked Questions
- Related Resources
What Is SOC 2?
SOC 2 (Service Organization Control 2) is an attestation framework developed by the AICPA (American Institute of Certified Public Accountants). It evaluates a service organisation's controls relevant to one or more of the Trust Services Criteria:
| Trust Services Category | What It Covers | Required? |
|---|---|---|
| Security (Common Criteria) | Protection against unauthorised access | Always included |
| Availability | System uptime and operational performance | Optional — include if availability is important to customers |
| Processing Integrity | System processing is complete, valid, accurate, timely | Optional — include for data processing services |
| Confidentiality | Protection of confidential information | Optional — include if you handle confidential (non-personal) data |
| Privacy | Collection, use, retention, disclosure of personal information | Optional — include if you process personal data under AICPA privacy criteria |
SOC 2 Type I vs Type II
| Aspect | SOC 2 Type I | SOC 2 Type II |
|---|---|---|
| What it evaluates | Design of controls at a point in time | Design AND operating effectiveness over a period (typically 6–12 months) |
| Audit approach | Control design review | Control design review + testing of operating effectiveness over the period |
| Value to customers | Moderate — shows controls exist | High — shows controls work consistently over time |
| Common use | First-time SOC 2; bridge while building towards Type II | Ongoing annual attestation; what customers actually want |
| Timeline | 1–3 months | 6–12 months (including observation period) |
Best practice: Get a Type I report quickly if customers are asking now, then transition to Type II for the ongoing programme.
What Is ISO 27001?
ISO/IEC 27001:2022 is the international standard for Information Security Management Systems (ISMS). It specifies requirements for establishing, implementing, maintaining, and continually improving an ISMS within the context of the organisation's overall business risks.
Key Components
| Component | Description |
|---|---|
| ISMS requirements (Clauses 4–10) | Management system requirements: context, leadership, planning, support, operation, performance evaluation, improvement |
| Annex A controls (93 controls) | Reference set of information security controls across 4 themes: Organisational (37), People (8), Physical (14), Technological (34) |
| Statement of Applicability (SoA) | Document listing all Annex A controls with justification for inclusion/exclusion |
| Risk assessment | Formal risk assessment process driving control selection |
| Internal audit | Regular internal audits to verify ISMS effectiveness |
| Management review | Senior management review of ISMS performance |
| Continual improvement | Systematic process for improving the ISMS |
Certification Cycle
| Stage | Timing | What Happens |
|---|---|---|
| Stage 1 audit | Pre-certification | Documentation review; readiness assessment |
| Stage 2 audit | Initial certification | Full audit of ISMS implementation and effectiveness |
| Certificate issued | After Stage 2 | 3-year certificate granted |
| Surveillance audit 1 | Year 1 anniversary | Partial audit — sample of controls and processes |
| Surveillance audit 2 | Year 2 anniversary | Partial audit — different sample |
| Recertification audit | Year 3 | Full audit — certificate renewed for another 3 years |
SOC 2 vs ISO 27001: Detailed Comparison
| Dimension | SOC 2 | ISO 27001 |
|---|---|---|
| Philosophy | "Prove your controls work" (attestation) | "Build a management system" (certification) |
| Flexibility | Very flexible — you define your controls | Prescriptive — 93 specific controls to consider |
| Scope definition | Defined by the service/system boundary | Defined by the ISMS boundary (can be whole org or specific BUs) |
| Risk assessment | Not formally required (but recommended) | Mandatory — entire framework is risk-driven |
| Management involvement | Not formally required | Mandatory — leadership commitment, management review |
| Continuous improvement | Not formally required | Mandatory — corrective actions, continual improvement |
| Internal audit | Not required | Mandatory — regular internal audits |
| Document requirements | Moderate — policies, procedures, evidence of controls | Extensive — ISMS documentation, SoA, risk treatment plan, internal audit records |
| Auditor qualifications | Licensed CPA firm | Accredited certification body (e.g., BSI, TÜV, Bureau Veritas, SGS) |
| Audit frequency | Annual (new report each year) | Annual surveillance + triennial recertification |
| Report distribution | Restricted — shared under NDA | Certificate is public; detailed audit report is confidential |
| Market recognition | Very high in US | Very high globally (especially EU, UK, APAC) |
| Regulatory alignment | Recognised by US regulators and customers | Referenced by NIS2, DORA, GDPR guidance; strong EU regulatory weight |
Trust Services Criteria vs ISO 27001 Controls
High-Level Mapping
| SOC 2 Trust Services Criteria | ISO 27001 Equivalent |
|---|---|
| CC1: Control environment | Clause 5 (Leadership), Clause 7 (Support) |
| CC2: Communication and information | Clause 7.4 (Communication), A.5 (Organisational controls) |
| CC3: Risk assessment | Clause 6.1 (Risk assessment), Clause 8 (Operation) |
| CC4: Monitoring activities | Clause 9 (Performance evaluation), A.8 (Technological controls) |
| CC5: Control activities | Annex A controls (across all themes) |
| CC6: Logical and physical access | A.5.15–A.5.18, A.7 (Physical), A.8 (Technological) |
| CC7: System operations | A.8 (Technological controls), A.5.24–A.5.28 (Incident management) |
| CC8: Change management | A.8.32 (Change management) |
| CC9: Risk mitigation | Clause 6.1 (Risk treatment), Annex A controls |
| Availability | A.5.29–A.5.30 (Business continuity), A.8.14 (Redundancy) |
| Processing integrity | A.8.24 (Use of cryptography), A.8.11 (Data masking) |
| Confidentiality | A.5.10 (Acceptable use), A.5.13–A.5.14 (Information classification) |
| Privacy | No direct equivalent (ISO 27701 extends ISO 27001 for privacy) |
Overlap and Unique Areas
| Area | SOC 2 | ISO 27001 | Both |
|---|---|---|---|
| Access control | X | X | Overlap |
| Encryption | X | X | Overlap |
| Incident management | X | X | Overlap |
| Change management | X | X | Overlap |
| Vendor management | X | X | Overlap |
| Business continuity | X (Availability) | X (A.5.29–30) | Overlap |
| Risk assessment | Implied | Mandatory | Partially overlapping |
| Internal audit | — | Mandatory | ISO only |
| Management review | — | Mandatory | ISO only |
| Continuous improvement | — | Mandatory | ISO only |
| AICPA Privacy criteria | SOC 2 only | — (use ISO 27701) | SOC 2 only |
| Physical security controls | Limited | Comprehensive | Partially overlapping |
| HR security | Limited | Comprehensive (A.6) | Partially overlapping |
The Audit Process Compared
SOC 2 Audit Process
| Phase | Duration | Activities |
|---|---|---|
| 1. Scoping | 2–4 weeks | Define system boundaries, TSC categories, and control objectives |
| 2. Readiness assessment (optional) | 2–4 weeks | Gap assessment against TSC; identify remediation needed |
| 3. Remediation | 4–12 weeks | Implement missing controls; document policies and procedures |
| 4. Type I audit (optional) | 2–4 weeks | Auditor evaluates control design at a point in time |
| 5. Observation period | 6–12 months | Controls operate; evidence accumulates |
| 6. Type II audit | 4–8 weeks | Auditor tests operating effectiveness; reviews evidence |
| 7. Report delivery | 2–4 weeks | CPA firm issues the SOC 2 report |
ISO 27001 Certification Process
| Phase | Duration | Activities |
|---|---|---|
| 1. ISMS design | 4–8 weeks | Gap analysis, risk assessment, scope definition, SoA |
| 2. Implementation | 8–16 weeks | Policies, controls, processes, training, internal audit programme |
| 3. Internal audit | 2–4 weeks | Internal audit against ISO 27001 requirements |
| 4. Management review | 1 week | Senior management reviews ISMS performance |
| 5. Stage 1 audit | 1–2 days | Certification body reviews documentation; confirms readiness |
| 6. Remediation | 2–6 weeks | Address any Stage 1 findings |
| 7. Stage 2 audit | 3–10 days (depending on scope) | Full on-site/remote audit of ISMS |
| 8. Certificate issued | 2–4 weeks after Stage 2 | Certificate valid for 3 years |
Cost Comparison: SOC 2 vs ISO 27001
Direct Costs
| Cost Category | SOC 2 | ISO 27001 |
|---|---|---|
| Audit/certification fees | $30,000–$150,000/year | $15,000–$50,000 (initial); $8,000–$25,000/year (surveillance) |
| Readiness assessment | $10,000–$30,000 (optional) | $5,000–$20,000 (optional, gap analysis) |
| Consulting support | $30,000–$100,000 | $20,000–$80,000 |
| GRC platform/tools | $5,000–$50,000/year | $5,000–$50,000/year |
| Total first year | $50,000–$250,000 | $40,000–$180,000 |
| Ongoing annual cost | $40,000–$180,000 | $15,000–$60,000 |
Indirect Costs
| Cost Category | SOC 2 | ISO 27001 |
|---|---|---|
| Internal staff time (implementation) | 200–500 hours | 300–800 hours |
| Internal staff time (ongoing) | 100–300 hours/year | 200–500 hours/year |
| Policy and documentation | Moderate | Extensive |
| Training | Security awareness | Security awareness + ISMS-specific training |
Key insight: SOC 2 has higher audit fees but lower internal overhead. ISO 27001 has lower audit fees but requires more internal effort to build and maintain the ISMS. Over a 3-year period, total costs tend to converge.
Timeline Comparison
Side-by-Side Timeline
| Month | SOC 2 (starting from zero) | ISO 27001 (starting from zero) |
|---|---|---|
| 1 | Scoping and readiness assessment | Gap analysis and risk assessment |
| 2 | Remediation — policies, controls | ISMS design — policies, SoA, controls |
| 3 | Remediation continues | Implementation — controls, training |
| 4 | Type I audit (optional) | Implementation continues |
| 5 | Observation period begins | Internal audit |
| 6 | Observation period | Management review; Stage 1 audit |
| 7–8 | Observation period | Remediation of Stage 1 findings |
| 9 | Observation period | Stage 2 audit |
| 10 | Observation period | Certificate issued |
| 11 | Type II audit fieldwork | — |
| 12 | SOC 2 Type II report issued | — |
Bottom line: ISO 27001 certification can be achieved in 6–10 months. SOC 2 Type II (with observation period) typically takes 9–12 months from start, though a Type I can be achieved in 3–4 months.
Which Should You Choose?
Choose SOC 2 If:
- Your primary customers are in North America
- Your customers specifically ask for SOC 2 reports
- You're a SaaS company selling to US enterprise customers
- You want to demonstrate control effectiveness over a period
- You want flexibility in defining your control framework
- Your competitors have SOC 2 and it's a market expectation
Choose ISO 27001 If:
- Your primary customers are in Europe, Asia-Pacific, or globally
- You need a recognised certification (not just a report)
- You want to build a formal management system for information security
- You're subject to NIS2, DORA, or other EU regulations that reference ISO 27001
- You want a certification badge you can display publicly
- You need to demonstrate compliance to multiple stakeholders without sharing a detailed report
Choose Both If:
- You sell to both US and European/global customers
- You want maximum market coverage and competitive advantage
- You're willing to invest in a comprehensive security programme
- You want to leverage the 70–80% control overlap for efficiency
Decision Framework
Answer these questions to determine your priority:
| # | Question | If Yes → |
|---|---|---|
| 1 | Are >50% of your prospects/customers in the US? | Prioritise SOC 2 |
| 2 | Are >50% of your prospects/customers in the EU or globally? | Prioritise ISO 27001 |
| 3 | Do your customers specifically ask for SOC 2 reports? | SOC 2 is needed |
| 4 | Do your customers specifically ask for ISO 27001 certification? | ISO 27001 is needed |
| 5 | Are you subject to NIS2, DORA, or other EU cybersecurity regulations? | ISO 27001 has strong regulatory alignment |
| 6 | Do you need a public-facing certification badge? | ISO 27001 (SOC 2 has no official badge) |
| 7 | Is your budget limited and you can only pursue one now? | Start with the one your top 5 prospects require |
| 8 | Do you have a mature security programme already? | Both are achievable in parallel |
Pursuing SOC 2 and ISO 27001 Together
Many organisations pursue both certifications simultaneously. Here's how to do it efficiently:
The Integrated Approach
| Phase | Activities | Duration |
|---|---|---|
| 1. Unified gap analysis | Assess against both SOC 2 TSC and ISO 27001 Annex A simultaneously | 3–4 weeks |
| 2. Integrated control framework | Design controls that satisfy both frameworks; single control can address multiple requirements | 4–6 weeks |
| 3. Unified documentation | Policies and procedures written to cover both; one set of evidence for both | 4–8 weeks |
| 4. Implementation | Implement controls once; evidence serves both audits | 8–12 weeks |
| 5. ISO internal audit | Conduct internal audit (ISO requirement) | 2–3 weeks |
| 6. ISO Stage 1 + Stage 2 | ISO certification audit | 2–4 weeks |
| 7. SOC 2 observation period | Controls operating; evidence accumulating | 6–12 months |
| 8. SOC 2 Type II audit | SOC 2 audit using same evidence base | 4–8 weeks |
Efficiency Gains
| Area | Savings from Combined Approach |
|---|---|
| Policy development | Write once, map to both → 50% less documentation effort |
| Control implementation | Implement once, test against both → 60% less implementation effort |
| Evidence collection | One evidence repository serves both audits → 40% less evidence gathering |
| Audit management | Coordinate auditors; provide same evidence → 30% less audit overhead |
| Overall cost | Combined is typically 30–40% cheaper than doing both independently |
Practical Tips for Combined Programmes
- Start with ISO 27001 as the foundation — its management system requirements (risk assessment, internal audit, management review) strengthen the overall programme
- Use a single GRC platform to map controls to both frameworks
- Coordinate audit timing — schedule your ISO certification audit first, then begin the SOC 2 observation period
- Select an ISO certification body that also has a CPA partnership or vice versa — some firms can facilitate both
- Create a unified control matrix showing how each control satisfies both SOC 2 TSC and ISO 27001 Annex A requirements
How SOC 2 and ISO 27001 Map to Each Other
Control Mapping Summary
| SOC 2 Common Criteria Area | ISO 27001 Clause/Control | Overlap |
|---|---|---|
| CC1.1–1.5: Control environment | Clause 5 (Leadership), A.5.1 (Policies) | High |
| CC2.1–2.3: Communication | Clause 7.4, A.5.1 | High |
| CC3.1–3.4: Risk assessment | Clause 6.1, 8.2 (Risk assessment) | High |
| CC4.1–4.2: Monitoring | Clause 9 (Performance evaluation) | High |
| CC5.1–5.3: Control activities | Annex A (various) | High |
| CC6.1–6.8: Access controls | A.5.15–A.5.18, A.8.2–A.8.5 | Very high |
| CC7.1–7.5: System operations | A.8.15–A.8.16, A.5.24–A.5.28 | High |
| CC8.1: Change management | A.8.32 | Very high |
| CC9.1–9.2: Risk mitigation | Clause 6.1, Annex A | High |
Overlap estimate: Approximately 70–80% of controls satisfy both frameworks.
SOC 2 and ISO 27001 in the Context of EU Regulations
If you operate in the EU or serve EU customers, understanding how these certifications interact with EU regulations is important:
| Regulation | SOC 2 Recognition | ISO 27001 Recognition |
|---|---|---|
| GDPR | Accepted as evidence of "appropriate technical and organisational measures" but not sufficient alone | Recognised as strong evidence of compliance; EDPB references it frequently |
| NIS2 | Not specifically referenced | Explicitly referenced as a relevant cybersecurity standard; may satisfy some Art. 21 requirements — see our NIS2 vs ISO 27001 guide for a detailed comparison |
| DORA | Accepted as evidence for ICT risk management | Referenced as a relevant standard for ICT risk management; recommended by ESAs |
| EU AI Act | Not referenced | ISO 42001 (AI management system) aligned with ISO 27001 structure |
| eIDAS 2.0 | Not referenced | Referenced for trust service providers |
Key takeaway: In the EU regulatory context, ISO 27001 carries significantly more weight than SOC 2. If EU compliance is a priority, ISO 27001 should be your foundation.
Common Myths Debunked
| # | Myth | Reality |
|---|---|---|
| 1 | "SOC 2 is harder than ISO 27001" | Neither is inherently harder — they test different things. SOC 2 tests control effectiveness over time; ISO 27001 tests management system maturity. |
| 2 | "ISO 27001 means you're secure" | ISO 27001 certifies that you have a management system for security — it doesn't guarantee you won't be breached. The same applies to SOC 2. |
| 3 | "SOC 2 is only for US companies" | SOC 2 originated in the US but is increasingly accepted globally. However, ISO 27001 remains more widely recognised outside North America. |
| 4 | "You need to choose one or the other" | Many organisations pursue both. The 70–80% overlap makes this efficient. |
| 5 | "SOC 2 Type I is worthless" | Type I is a legitimate stepping stone — it shows your controls exist even if you haven't demonstrated them over time yet. Many customers accept Type I while you work towards Type II. |
| 6 | "ISO 27001 requires you to implement all 93 controls" | ISO 27001 requires you to consider all 93 controls and justify any exclusions in your Statement of Applicability. You only implement the controls that are relevant to your risks. |
| 7 | "Once certified, you're done" | Both require ongoing effort — SOC 2 needs an annual audit; ISO 27001 has annual surveillance audits and a triennial recertification. |
| 8 | "Automated compliance platforms eliminate the need for an auditor" | Platforms like Vanta, Drata, and Sprinto streamline evidence collection but cannot replace the audit itself. You still need a CPA firm (SOC 2) or certification body (ISO 27001). |
Frequently Asked Questions
Can a SOC 2 report substitute for ISO 27001 certification?
No. They are different frameworks with different purposes. A SOC 2 report demonstrates that specific controls are designed and operating effectively, while ISO 27001 certifies that you have a management system for information security. Some customers will accept one in lieu of the other, but they are not interchangeable — particularly in EU regulatory contexts where ISO 27001 carries more weight.
How long does each certification last?
A SOC 2 Type II report covers a specific observation period (typically 12 months). Customers expect a new report annually. An ISO 27001 certificate is valid for 3 years, with annual surveillance audits to maintain it. Both require ongoing compliance — letting your SOC 2 report lapse or failing a surveillance audit can lose your certification/attestation.
Which is more expensive?
Over a 3-year period, total costs (including internal effort, consulting, tools, and audit fees) tend to be similar: approximately $150K–$500K depending on company size and complexity. SOC 2 has higher annual audit fees ($30K–$150K/year); ISO 27001 has higher implementation costs but lower annual certification fees ($8K–$25K/year for surveillance). If you pursue both simultaneously, the combined cost is 30–40% less than pursuing each independently.
Do I need both for enterprise sales?
It depends on your market. US enterprise sales typically require SOC 2. European enterprise sales typically require ISO 27001. Global enterprise sales increasingly expect both. If budget is limited, start with the certification your top prospects require, then add the other within 12 months.
What's the difference between SOC 1 and SOC 2?
SOC 1 reports on controls relevant to financial reporting — it's used by service organisations whose services affect their clients' financial statements (e.g., payroll processors, financial data hosting). SOC 2 reports on controls relevant to security, availability, processing integrity, confidentiality, and privacy. Most technology companies need SOC 2, not SOC 1.
Can startups realistically achieve SOC 2 or ISO 27001?
Yes. Many startups achieve SOC 2 Type II within 6–9 months and ISO 27001 within 6–12 months. Automated compliance platforms (Vanta, Drata, Sprinto, Secureframe) have significantly reduced the effort required for startups with cloud-native infrastructure. The investment typically pays for itself quickly by unblocking enterprise deals.
How do automated compliance platforms help?
Platforms like Vanta, Drata, Sprinto, and Secureframe automate evidence collection from your cloud infrastructure (AWS, Azure, GCP), HR systems, identity providers, and code repositories. They continuously monitor your control status, alert you to gaps, and streamline the evidence-sharing process with auditors. They typically reduce the internal effort by 40–60% but do not eliminate the need for policies, risk assessments, and the audit itself.
What happens if we fail an audit?
For SOC 2: the CPA firm may issue a qualified opinion or note exceptions in the report. This isn't necessarily fatal — many organisations have exceptions in their first report and remediate for the next period. For ISO 27001: the certification body may issue major or minor non-conformities. Minor NCOs must be resolved within a defined timeframe. Major NCOs may prevent certification until resolved. Neither framework has a public "fail" — but auditors will not issue a clean report/certificate until findings are addressed.
Related Resources
- ISO 27001 Implementation Guide — Complete guide to achieving ISO 27001 certification, from gap analysis to Stage 2 audit
- Virtual CISO Guide — How a virtual CISO can manage your SOC 2 and ISO 27001 programmes
- Vendor Risk Assessment Guide — How to evaluate your vendors' SOC 2 reports and ISO 27001 certificates
- NIS2 Directive Complete Guide — How ISO 27001 aligns with NIS2 requirements
Related Articles
- ISO 27001 Certification: The Complete Implementation Guide — Full ISMS implementation from gap analysis to certification
- Information Security Policy Templates Guide — Building your security policy library for compliance
- Vendor Risk Assessment Guide — Third-party risk management frameworks and templates
Conclusion
The SOC 2 vs ISO 27001 decision isn't about which is better — it's about which serves your market, your customers, and your strategic goals. US-focused SaaS companies should prioritise SOC 2. Global or EU-focused companies should prioritise ISO 27001. Companies serving both markets should pursue both, leveraging the significant control overlap for efficiency.
Whichever you choose, the investment in a rigorous security programme pays dividends beyond the certificate or report: fewer breaches, faster sales cycles, stronger customer trust, and a security culture that protects your business for the long term.
Need SOC 2 or ISO 27001? Vision Compliance guides organisations through both certifications — from gap analysis to audit-ready programmes. We specialise in combined SOC 2 + ISO 27001 implementations that minimise cost and time. Schedule a free consultation →
Sources: AICPA Trust Services Criteria (2017, updated), ISO/IEC 27001:2022, NIS2 Directive (EU 2022/2555), DORA (EU 2022/2554), EDPB Guidelines
Robert Lozo, mag. iur., is a Partner at Vision Compliance specializing in EU regulatory compliance. He advises organizations on GDPR, NIS2, AI Act, and financial regulation, delivering audit-ready documentation and compliance roadmaps across regulated industries.