SOC 2 vs ISO 27001: What is the difference?

SOC 2 and ISO 27001 have been the most common contenders in the compliance landscape, and many companies ask us which one they need. Is one better than the other? The answer depends on several factors and can vary depending on what you’re looking for.

Read on to understand the differences and similarities between the two frameworks and which one to choose when.

¿Qué es SOC 2?

SOC 2 (System and Organization Controls) is a voluntary standard developed by the American Institute of Certified Public Accountants (AICPA) that applies to service organizations handling sensitive customer data. The AICPA specifies that organizations must maintain control effectiveness to meet the 5 Trust Services Criteria—Security, Availability, Confidentiality, Processing Integrity, and Privacy.

¿Qué es ISO 27001?

ISO 27001,, also known as ISO/IEC 27001, is an international standard that outlines the requirements for developing and maintaining an effective Information Security Management System (ISMS). The framework’s goal is to maintain the confidentiality, integrity, and availability of data, thereby minimizing information security risks.

The standard was developed in 2005 by the International Organization for Standardization (ISO) in partnership with the International Electrotechnical Commission (IEC). The current standard was updated in 2022 and you can learn more about ISO 27001 requirements here.

What is the difference between ISO 27001 and SOC 2?

SOC 2 is an information security framework popular in North America that assesses how a company manages data based on the Trust Service Criteria, while ISO 27001 is a global standard that certifies an organization’s ISMS.

SOC 2 and ISO 27001 are trusted frameworks for safeguarding data. SOC 2 emphasizes cybersecurity controls for customer data, whereas ISO 27001 focuses on the overall effectiveness of an organization’s ISMS.

área de enfoque	SOC 2	ISO 27001,
Enfócate	Evaluates the effectiveness of cybersecurity controls to protect customer data.	Assesses the overall effectiveness of an organization’s ISMS for managing information security.
Propósito	SOC 2 can be used as a customer trust tool and to win better deals in the US market.	ISO 27001 certification showcases that the business prioritizes information security and has a strong ISMS.
Cronograma	SOC 2 Type 1 requires 4-8 weeks while SOC 2 Type 2 requires 3-12 months.	ISO 27001 implementation and audit process typically take around 3-10 months, with ongoing monitoring.
Type of framework	A compliance framework based on the AICPA Trust Service Criteria.	An international standard developed by ISO for managing information security systems.
Aplicación	Tailored for service organizations, particularly those handling customer data.	Applicable to organizations of any size, across industries, seeking a structured ISMS.
Proceso de certificación	Results in an attestation report issued by an independent auditor (Type I or Type II).	Results in formal certification awarded by an accredited certification body.
Alcance de la cobertura	Focuses on specific Trust Service Categories, such as Security, Availability, and Privacy.	Covers broader information security practices across the organization, including risk management.
Geografía	More commonly used in the United States.	Recognized and valued globally as an international standard.
Tipo de auditoría	Independent attestation engagement (Type I: point-in-time, Type II: operating effectiveness over a period).	Formal certification audit (Stage 1 + Stage 2) followed by periodic surveillance and recertification audits.
Auditor required	Licensed CPA firm (or equivalent) registered and qualified to perform SOC examinations.	Accredited certification body (CB) with ISO/IEC 27001 accreditation.
Rango de precios	$5,000–$25,000 (Type I) | $7,000–$50,000 (Type II).	$30,000–$60,000 for certification audit.

1. Alcance y enfoque

SOC 2’s scope can be as narrow as one Trust Service Criteria (Security is the only mandatory one). Which other criteria apply depends on the services you provide, so SOC 2 flexes to your business: organizations typically implement 70 to 150 SOC 2 controls depending on the categories selected.

ISO 27001 takes a broader, risk-based view across the whole organization. You run a formal risk assessment and treatment process, then document which Annex A controls apply in a Statement of Applicability. The current ISO/IEC 27001:2022 Annex A has 93 controls, not all mandatory, but any exclusion needs a documented justification tied to your risk assessment.

2. Audit and Output

SOC 2 results in an attestation report from a licensed CPA firm, evaluating how well you meet the Trust Services Criteria. There’s no such thing as “Certificación SOC 2.” The audit produces a Informe SOC 2: Type I (whether your controls are suitably designed and checked at a single point in time) or Type II (whether those same controls actually operate effectively and are checked over 6–12 months).

ISO 27001 results in a formal certificate from an accredited certification body, issued after a two-stage audit (Stage 1: preliminary ISMS review, Stage 2: effectiveness and implementation review). The certificate is valid for 3 years with annual surveillance audits.

The reports also differ in granularity: a SOC 2 report is detailed, including the auditor’s opinion, management’s assertion, system description, and control tests. An ISO 27001 report is a higher-level summary and doesn’t break down which specific parts of the system have non-conformities.

3. Geographic Preference

SOC 2 is the default in North America and is what most US-based SaaS, cloud, and IT vendors will ask for first, though demand is growing outside the US too.

ISO 27001 carries stronger international weight and is common across IT, finance, telecom, and healthcare globally. It’s not always explicitly requested by vendors, but it builds credibility for enterprise deals regardless. regalo chose ISO 27001 with Sprinto specifically to cut down the time spent on enterprise security questionnaires, implementing in 8 weeks and seeing a lasting drop in questionnaire turnaround since.

If you operate in the EU, ISO 27001 also gives you a head start on adjacent obligations like DORA and NIS2, since the ISMS backbone (risk management, incident response, access control) overlaps with what those regulations expect, though it isn’t a substitute for either.

4. Plazos

ISO 27001 y SOC 2 timelines can vary greatly. For instance, the SOC 2 compliance timeline changes based on the type of compliance you are opting for. 

For SOC 2 Type I, the process can typically take anywhere from 2-3 meses, dependiendo de factores como:

• The maturity of your existing controls.
• The complexity of your organization.
• The availability of documentation and resources.

SOC 2 Type II compliance, on the other hand, involves demonstrating the operational effectiveness of your controls over a defined period—6 al mes 12, desglosado en:

• Preparation phase (1-3 months): Readying your controls, addressing gaps, and implementing necessary processes.
• Observation period (3-12 months): Operating controls and collecting evidence during the defined observation period.
• Audit phase (1-2 months): Completing the audit and receiving the final report.

ISO 27001, on the other hand, can take between 6 and 24 months due to the comprehensiveness involved.

Regarding renewals, SOC 2 compliance is valid for one year and requires an annual renewal audit. ISO 27001 is valid for 3 years, but requires annual surveillance audits.

What do ISO 27001 and SOC 2 have in common?

SOC 2 and ISO 27001 are usually compared because they share certain similarities. Let’s have a look at these similarities:

1. Voluntary but internationally recognized

Both ISO 27001 and SOC 2 are voluntary standards and not mandatory regulations like GDPR and HIPAA. However, both are internationally recognized and in huge demand because of the focus on stringent information security requirements.

2. Control overlap

ISO 27001 and SOC 2 have more than 90% overlap in controls, as they aim to protect sensitive information. Some examples of common controls include incident management plans, access controls, physical security, change management, vendor management, and data backups.

3. Focus on information security

The primary goal of both ISO 27001 and SOC 2 frameworks is to ensure that information is protected against unauthorized access and disclosure. SOC 2 aims to maintain customer data privacy and security, while ISO 27001 concerns ensuring a secure ISMS.

4. Key to building trust with clients

ISO 27001 and SOC 2 are widely accepted by customers and key market differentiators when you are looking for enterprise deals.

In our case, there was a 95% control overlap between the two so it made sense to tackle both SOC 2 and ISO 27001 together.

Tanuj Sharan, DevOps Engineer, Recruit CRM

5. Third-party validation

Both security standards require external audits or assessments. In the case of SOC 2 the third-party validation results in an attestation while for ISO 27001 it results in certification.

6. Ongoing maintenance and improvement

None of the frameworks is a one-and-done process and requires ongoing maintenance and improvement for periodic assessments. This requires a monitoreo continuo mechanism for both to stay ever-compliant.

Which framework should you choose first: SOC 2 or ISO 27001?

If you can eventually do both, the better question is usually sequencing. Start with the framework that removes your biggest customer, market, or audit blocker first.

If you are handling sensitive customer data or looking to pitch  to Enterprise-Scale customers, especially in the US, SOC 2 becomes a table-stakes requirement for a sales engagement.

Devika Anil, Lead Auditor at Sprinto

Choose SOC 2 first if:

• Your immediate sales blocker is a US enterprise customer asking for a SOC 2 report.
• A prospect specifically wants a SOC 2 Type 2 report, audit period, bridge letter, or Trust Services Criteria scope.
• Your buying committee cares most about how controls operate over time in the product or service environment.
• You need a report that answers vendor due diligence questions for customer data, cloud services, availability, confidentiality, or privacy.

Choose ISO 27001 first if:

• You sell across multiple geographies and need a globally recognized ISMS certification.
• Customers are asking about your overall security governance, not just product-specific controls.
• You need a structured risk management system that supports policies, risk treatment, internal audits, management review, and continual improvement.
• You operate in markets where buyers expect formal certification from an accredited certification body.

ISO 27001 is a good starting point to follow best practices in IT security and demonstrate it to your clients because if you are subject to regulations like GDPR, you’ll have to pay up to 4% of your yearly revenue if the information security is compromised.

Fabian Weber, vCISO and Auditor

Consider selecting both together if:

• You have US and international enterprise buyers in the same sales pipeline.
• Your customers ask for both a SOC 2 report and ISO 27001 certificate during security review.
• You want to reuse common controls for access management, incident response, vendor management, change management, logging, backups, and risk assessment.
• You have enough internal ownership to manage two audit tracks without letting evidence quality slip.

This exact decision comes up constantly on r/soc2 too, and one comment lays out a cleaner four-question framework than most consultants charge for:

Comentario
byu/adesinzu del debate
insoc2

Do I need both ISO 27001 and SOC 2?

SOC 2 e ISO 27001 aren’t interchangeable, each serves its own use case, purpose, and market, but having both strengthens your security posture and removes a market-access blocker that either one alone leaves open.

Here’s what having both actually buys you:

• You stop losing deals to geography. Most North American buyers accept SOC 2 without asking for ISO 27001. Most international buyers expect ISO 27001 and won’t treat SOC 2 as a substitute. If your pipeline has both, one certification alone caps your addressable market.
• The controls overlap, but the paperwork doesn’t. Since the two frameworks share 90%+ of the same underlying controls, adding the second framework once you already have the first is a fraction of the original effort, not a second full project.
• It closes the “why don’t you have X” objection before it comes up. Buyers rarely accept one standard in place of the other, even when they cover similar ground, so having both removes a specific, recurring objection rather than just generally strengthening your posture.

Pursue both together if your pipeline already has US and international enterprise buyers in it. Pursue one first, then add the second, if you’re earlier-stage and only one market is actively blocking deals right now, the “Which framework should you choose first” section above walks through exactly how to make that call.

The smarter way to get compliant

If you have international clients with a strong presence in the US, you’ll mostly need both frameworks. However, since the standards overlap by about 90%, you can simultaneously prepare for both without duplicating efforts. This is where compliance automation platforms like Sprinto precisely play their part.

pique helps you easily map standard controls, minimizing the effort required to gather evidence repeatedly. So, for example, if access controls are a requirement under both frameworks, you’ll implement them once with the platform, and Sprinto will automatically collect evidence for both regulatory requirements to expedite the certification process.

You can also use our tool Cross Sprint to easily check the effort required to become compliant with multiple frameworks.

Lee cómo DNIF achieved SOC 2 and ISO 27001 readiness in 14 days! The company leveraged Sprinto’s documentation templates, integrated various applications with Sprinto for automated evidence collection, and streamlined compliance with automated workflows.

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