SOC 2 or ISO 27001: Which Should You Pursue First?

## The short answer

If the customers asking for proof of your security are mostly North American, pursue **SOC 2** first. If you sell into Europe, the UK, Asia-Pacific, or to procurement teams that expect a formal, internationally recognised certificate, lead with **ISO 27001**. The deciding factor is rarely the technical merit of one framework over the other — it is what the people signing your contracts actually ask for.

Both frameworks describe a credible information security programme. They overlap heavily in the controls they expect. The difference lies in their origin, their output, and their audience.

## What each one produces

- **SOC 2** results in an *attestation report* written by a licensed accounting firm. There is no pass/fail badge — you receive a detailed report describing your controls and the auditor's opinion. Buyers (or their security teams) read it.

- **ISO 27001** results in a *certificate* issued by an accredited certification body. It is a recognisable, binary credential: you are either certified or you are not. Many buyers accept the certificate at face value without reading underlying detail.

This distinction matters for sales. A SOC 2 report is rich but requires the reader to digest it (and usually to sign an NDA first). An ISO 27001 certificate is instantly shareable and globally understood.

## Geography and buyer expectations

SOC 2 emerged from the American accounting profession and became the default expectation for SaaS vendors selling to US enterprises. ISO 27001 is an international standard and is the lingua franca of security procurement across Europe, the Middle East, and much of Asia.

Ask yourself:

1. Where are my top 10 prospective customers headquartered?

2. What does their security questionnaire actually request?

3. Are any deals currently blocked because we lack a specific credential?

The answers usually point clearly in one direction. Chasing the framework your buyers do not ask for is a common and expensive mistake.

## Time, cost, and effort

Neither is quick, but the rhythms differ:

- **SOC 2 Type I** can be achieved relatively fast because it assesses the *design* of controls at a point in time. **SOC 2 Type II** then assesses whether those controls *operated effectively* over a period — commonly several months — and is the report most enterprise buyers want.

- **ISO 27001** requires you to stand up an Information Security Management System (ISMS), run it long enough to generate evidence, then pass a two-stage external audit (Stage 1 documentation review, Stage 2 implementation review). Certification then runs on a multi-year cycle with surveillance audits.

In practice the underlying work — risk assessments, access controls, vendor management, logging, incident response — is largely the same. Once you have done it for one framework, the marginal cost of the second is far lower.

## Can you do both?

Yes, and many organisations eventually do. Because the control sets overlap, teams often build their programme once and map the evidence to both frameworks. A sensible sequence:

1. Identify the credential blocking the most revenue and pursue it first.

2. Build controls in a framework-agnostic way (good policies, real evidence, automated logging).

3. Add the second framework as a mapping exercise rather than a fresh project.

Starting with one and bolting on the other is far cheaper than running two parallel programmes from scratch.

## A decision shortcut

Use this rough guide:

- **US-heavy SaaS buyers, fast-moving sales cycle** → SOC 2 Type II.

- **Global or European enterprise, formal procurement, RFPs** → ISO 27001.

- **Both audiences and budget for one effort** → build controls once, certify ISO 27001, then produce a SOC 2 report from the same evidence base.

- **Tiny team, first security ask just landed** → SOC 2 Type I to unblock the deal, with a plan to mature into Type II.

## Where tooling helps

Whichever you choose, the heavy lifting is collecting and maintaining evidence: who has access to what, whether laptops are encrypted, whether changes are reviewed, whether vulnerabilities are patched on schedule. Modern compliance and security platforms — including the enterprise-grade tooling neart.ai builds in this space — automate much of that evidence collection so your team is not screenshotting dashboards the night before an audit.

## Takeaway

Do not pick the framework with the better reputation; pick the one your buyers are asking for. Let revenue, not preference, choose the order. Build your controls once in a framework-neutral way, and the second certification becomes a mapping exercise rather than a second mountain to climb.