The world of information security can feel like walking a tightrope. On one hand, SOC 2 is tailored for service providers, especially in North America, offering flexible, customer-focused reports that show your controls are working. On the other, ISO 27001 sets the bar globally, demanding a structured, organization-wide security management system. Choosing between an attestation report or a formal certification isn’t just a checkbox, it’s a strategic decision. This article cuts through the jargon to help you size up both options, weigh what your customers and regulators expect, and figure out the strongest path for your business.
SOC 2 and ISO 27001 are compliance frameworks commonly required of organizations that house data or store sensitive information. Both standards focus on information security management, but they have some key differences in their approach and scope.
Let’s take a closer look at the differences between SOC 2 and ISO 27001 and see if one or both are right for your organization.
What is SOC 2?
SOC 2 (System and Organization Controls 2) is a compliance framework developed by the American Institute of Certified Public Accountants (AICPA) that evaluates how well an organization manages customer data. Unlike a financial audit, SOC 2 focuses specifically on trust and security practices, making it especially relevant for technology companies, SaaS providers, and service organizations that handle sensitive information.
What is ISO 27001?
ISO 27001 is an internationally recognized standard for information security management, published by the International Organization for Standardization (ISO) and the International Electrotechnical Commission (IEC). It provides organizations with a structured framework for building, maintaining, and continually improving an Information Security Management System (ISMS). The standard is designed to protect the confidentiality, integrity, and availability of information by applying a risk management process and implementing appropriate security controls. It’s flexible and can be applied to organizations of all sizes and industries, from startups to global enterprises.
Read the “ISO 27001:2022 vs ISO 27001:2013 – which version should your business follow?” article to learn more!
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Learn MoreWhat are the differences between SOC 2 vs. ISO 27001?
Scope
SOC 2 focuses specifically on the five Trust Services Criteria: security, availability, processing integrity, confidentiality, and privacy data in the cloud.
There are no predefined sets of controls, so a company is able to pick the controls it wants to test, which may make it easier to achieve. This approach is favorable for a young company that is still building its security functions.
ISO 27001 is a broader standard that covers information security management systems (ISMS) in general, including all types of information, not just data in the cloud.
Unlike SOC 2, ISO is measured against a rigid controls framework. It also requires more time and money, so although the framework says it’s applicable for any organization, this one-size-fits-all approach doesn’t work well with less mature companies.
Integrated security assurance platforms like TrustCloud make SOC 2 and ISO 27001 readiness fast and effortless by automating controls, evidence collection, and gap remediation with TrustOps. With built-in audit support and a live TrustShare Portal, you can showcase compliance and build customer trust from day one.
Market
Both frameworks are recognized globally, but SOC 2 is commonly used in the US, and ISO 27001 is used both in the US and internationally.
SOC 2 and ISO 27001 are two of the most widely recognized frameworks for information security, but they serve different purposes. SOC 2 is an attestation report based on the Trust Services Criteria developed by the AICPA, designed to demonstrate how a service organization manages data. ISO 27001, on the other hand, is a certifiable international standard that requires organizations to implement a full Information Security Management System (ISMS).
While both build trust with customers and partners, their approaches, scope, and global recognition vary significantly. Understanding their differences helps organizations choose the right framework or pursue both for maximum credibility.
5 key differences between SOC 2 and ISO 27001:
- Origin and authority
- SOC 2 is developed by the American Institute of Certified Public Accountants (AICPA).
- ISO 27001 is a globally recognized standard developed by the International Organization for Standardization (ISO).
- Type of evaluation
- SOC 2 results in an attestation report issued by a CPA firm.
- ISO 27001 leads to a formal certification by an accredited certification body.
- Scope and approach
- SOC 2 is based on five Trust Services Criteria: Security, Availability, Processing Integrity, Confidentiality, and Privacy.
- ISO 27001 focuses on establishing, implementing, maintaining, and continually improving an Information Security Management System (ISMS).
- Flexibility and customization
- SOC 2 reports are tailored to the specific controls and systems of each organization.
- ISO 27001 follows a structured set of mandatory requirements and risk-based decision-making.
- Geographic relevance
- SOC 2 is more common in North America, especially among SaaS companies.
- ISO 27001 is preferred internationally and often required by global clients or regulatory bodies.
Read the “Confidently choose your SOC 2 trust service criteria” article to learn more!
Prepare to pass your SOC 2 audit
A successful SOC 2 audit shows customers and prospects that you’re serious about protecting their data. TrustCloud helps you achieve SOC 2 attestation faster, with less stress on each subsequent audit.
The process, third-party audits, & deliverables
Both SOC 2 and ISO 27001 require a third-party audit to receive either an attestation report (SOC 2) or a certification (ISO 27001).
SOC 2 is not a certification but an attestation report. There are also two types: SOC 2 Type 1 and SOC 2 Type 2. After an organization has figured out which type to pursue and documented the scope of the audit and its policies, they must hire a licensed CPA (Certified Public Accountant) to look into the internal controls (that protect customer data) to make sure they’re legitimate. Only then can the CPA firm attest on the organization’s behalf.
From the firm’s POV, the SOC 2 process would look something like this:
- Review the scope of the audit.
- Develop a plan.
- Test the controls
- Document the findings
- Deliver the SOC 2 attestation report.
From the internal side, it would have two parts:
- Part 1: A Readiness Assessment. This review period acts as a dry run before the official. Although it’s optional, it’s a good idea to conduct. By flagging things early on, money and resources won’t be wasted later. This can be done within the organization or by a third party.
- Part 2: The Official Audit. If gaps were identified in the last part, then this review would make sure that those same gaps have been improved on and closed.
ISO 27001 is a certification that must be certified by an ISO 27001-accredited body.
SOC 2 overview and guides
The SOC 2 Overview and Guides provide a comprehensive introduction to the SOC 2 compliance readiness process, essential for SaaS vendors in the United States.
Similarly to SOC 2, this audit has two parts:
- Part 1: Documentation Assessment. The auditor or certifier will check to see if the requirements, having security controls that protect customer data and an operational ISMS in place, are present. If there are any gaps, the auditing body will identify the areas of improvement.
- Part 2: Certification Audit. If gaps were identified in the last part, then this review would make sure that those same gaps have been improved on and closed.
For a deeper dive into the ISO review process, here’s our Intro to ISO 27001 guide.
Choosing between SOC 2 vs. ISO 27001
SOC 2 is relatively more affordable and faster to achieve, but ISO is a universal standard around the globe, and its certification is recognized by all industries in all regions. On the other hand, ISO usually takes about 50 – 60% more time to complete, and it costs 50 – 60% more as well.
Neither SOC 2 nor ISO is mandatory, but acquiring them helps you:
- Build trust with potential customers
- Pass security reviews and win business
- Stay on track with compliance and regulatory requirements
- Evaluate and improve data security practices on a regular basis
So, how would one know which one to pursue?
It depends on a multitude of factors, such as how mature your company is, where it’s located, where your customers are, where and how you want to grow, and how many resources you have at your disposal. A critical factor is customer requirements; if your customers expect one or both of these frameworks, then they may be required to do business.
How TrustCloud helps you achieve SOC 2 readiness in no time
TrustCloud transforms SOC 2 readiness into something fast, simple, and smart, even for busy startups. In just a few clicks, the platform designs the controls you need, based on over 100 testing areas tied to security, privacy, and compliance. Any evidence required, access logs, policies, or configurations, is collected automatically from your cloud tools, saving you hours of manual effort. You can also build a live trust portal, TrustShare, to share your compliance posture with customers, eliminating tedious back-and-forth with questionnaires.
From setup to audit prep, TrustCloud turns SOC 2 into a streamlined, confidence-building experience.
How buyers really read SOC 2 and ISO 27001
Most customers do not obsess over the fine print of SOC 2 or ISO 27001; they use them as quick trust shortcuts. A U.S. enterprise SaaS buyer often asks, “Do you have a recent SOC 2 Type II?” because it signals your controls actually operated over time, not just on paper. European or globally distributed buyers tend to look for ISO 27001 because it tells them you run a formal ISMS aligned with international expectations and, often, GDPR‑friendly practices. Understanding these buying patterns helps you pick the standard that removes the most friction in your current sales process.
Once a prospect sees the right logo or report, they immediately move to deeper questions: “Does this match our risk appetite and regulatory landscape?” SOC 2’s flexible, system‑specific scope and Trust Services Criteria let you highlight the controls that matter for your cloud service, while ISO 27001’s Annex A and Statement of Applicability show how you secure the broader organization. Framing your choice in language buyers already use, speed to proof with SOC 2, global rigor with ISO 27001, turns compliance from a checkbox into a visible part of your go‑to‑market story.
Summing it up
Picking between SOC 2 and ISO 27001 isn’t just about compliance; it’s a strategic decision that shapes how your organization earns trust. SOC 2 gives you a point-in-time attestation aligned with U.S. reporting norms, while ISO 27001 builds a global, system-wide foundation for ongoing security maturity.
The competitive landscape signals operational strength, informs future audit readiness, and sets the groundwork for global credibility. Nor do you have to stop at one framework; companies that layer both often gain the fastest access to enterprise and international business opportunities.
Choose SOC 2 for speed and U.S. market traction. Opt for ISO 27001 if you’re looking to scale, endure, and lead through continuous improvement. And if you’re poised to grow, consider a dual strategy: earn trust everywhere, starting today.
Be sure to check out our other guides on SOC 2, ISO 27001, HIPAA, GDPR, CCPA & ISO 27701.
FAQs
What is the main difference between SOC 2 and ISO 27001?
SOC 2 and ISO 27001 serve different roles, even though both enhance organizational security. SOC 2 issues an attestation report from a CPA firm, focused on evaluating controls tied to the Trust Services Criteria: Security, Availability, Processing Integrity, Confidentiality, and Privacy. ISO 27001 is a globally recognized certification standard that requires building a comprehensive Information Security Management System (ISMS).
It stresses continuous improvement and risk-based planning. While SOC 2 reports on current practices tailored to your organization, ISO 27001 enforces a standardized structure, complete system design, and formal certification.
How do the audit and certification processes differ between SOC 2 and ISO 27001?
SOC 2 results in an attestation report issued by a licensed CPA firm. Organizations can choose a Type I audit, which reviews control design at a point in time, or a Type II audit, which tests control effectiveness over a defined period, usually six to twelve months.
ISO 27001 requires a certification audit conducted by an accredited certification body. It involves two stages: the first checks readiness and documentation, and the second assesses implementation and effectiveness. SOC 2 produces a detailed report that is often shared with customers, while ISO 27001 results in a certification that proves the organization’s ISMS meets international standards.
How do SOC 2 and ISO 27001 differ in geographic and industry application?
SOC 2 is primarily used within North America and is especially prevalent among SaaS and cloud service companies that need to demonstrate control over customer data. ISO 27001, being internationally recognized, is often required by global clients and regulatory bodies across diverse sectors.
Organizations aiming to serve international markets or industries with stringent global compliance demands, such as finance, healthcare, or government, may find ISO 27001 more beneficial. In contrast, firms servicing U.S.-based customers may prioritize SOC 2 to meet client expectations and contract needs.
Which types of organizations typically pursue SOC 2 versus ISO 27001?
SOC 2 is most commonly pursued by SaaS companies, cloud service providers, and technology vendors that handle customer data, particularly those operating in North America, where customers and partners frequently request SOC 2 reports during vendor assessments.
ISO 27001, by contrast, is favored by organizations with a global presence or those seeking recognition in international markets. It applies broadly across industries, from healthcare and finance to manufacturing and consulting. While SOC 2 focuses heavily on proving trust to customers, ISO 27001 demonstrates an organization’s ability to manage information security holistically and align with internationally accepted best practices.
Can an organization pursue both SOC 2 and ISO 27001 simultaneously?
Yes, pursuing both frameworks at the same time is not only possible, it can be strategic. SOC 2 and ISO 27001 share many overlapping controls, such as risk management, access controls, and security training, meaning work toward one often supports the other. SOC 2 is commonly expected in North American markets, while ISO 27001 holds global recognition.
By addressing both, organizations can unlock opportunities with clients across regions and industries. Preparing for both simultaneously consolidates effort and accelerates readiness, ultimately reinforcing cybersecurity posture and market credibility.
