Who Conducts a SOC 2 Audit? Choosing the Right CPA Firm

Who Conducts a SOC 2 Audit? Choosing the Right CPA Firm

A SOC 2 audit must be conducted by an independent Certified Public Accountant (CPA) firm — not by your own team, and not by a compliance software vendor, regardless of how much of your evidence collection that vendor automates. This guide covers what "licensed" actually means here, how to evaluate firms, and how an auditor's role differs from a platform like DSALTA's.

What "Licensed to Perform SOC Audits" Actually Means

This phrase gets used loosely, so it's worth being precise: the American Institute of Certified Public Accountants (AICPA) sets the professional standards SOC 2 audits must follow, but it doesn't issue a separate "SOC 2 license" to individual firms the way a state issues a driver's license. What's actually required is that the audit be performed by a licensed CPA firm operating under AICPA attestation standards (specifically AT-C Section 105 and 205), with the engagement led by practitioners qualified to perform SOC engagements. In practice, this means you're looking for a CPA firm with a demonstrated SOC 2 practice — actual completed engagements, not just a general audit background — rather than checking for a specific credential that doesn't exist as a standalone license.

This independence requirement is also why DSALTA and similar compliance platforms don't issue your SOC 2 report themselves — no matter how automated your evidence collection is, the report has to come from a firm with no financial stake in the outcome, which is precisely what gives it credibility with customers and partners evaluating your report.

What to Look For in an Auditor

Beyond the baseline licensing requirement, the quality gap between CPA firms doing SOC 2 work is real and worth vetting for directly. Look for a firm that:

• Has deep, specific SOC 2 experience in your industry — a firm that's audited a dozen SaaS companies will ask sharper questions about your access controls and deployment pipeline than one whose SOC 2 work has mostly been in manufacturing or retail

• Understands modern cloud and SaaS environments, including how evidence works in cloud-native infrastructure — an auditor still expecting on-premise-style evidence will slow down a cloud-first audit unnecessarily

• Provides collaborative guidance throughout the process, not just a fieldwork visit and a final report — the best auditors flag likely gaps during scoping, before you've built out controls around a misunderstanding of what they'll test

• Delivers clear, actionable reports — ask to see a redacted sample report before engaging; vague or boilerplate control descriptions in a sample are a real warning sign

• Offers transparent pricing and timeline estimates up front, rather than a quote that expands significantly once fieldwork starts

A few concrete questions worth asking any firm you're evaluating: How many SOC 2 engagements have you completed in the last 12 months? Can you provide references from companies of similar size and industry? What's your typical timeline from kickoff to report delivery? How do you handle exceptions found during testing — do you work with us on remediation, or just document and move on?

How Auditor Choice Affects Cost and Timeline

Your choice of auditor has a direct, sometimes underestimated effect on both cost and how long the audit takes. A firm with deep SaaS experience typically moves through fieldwork faster because they're not learning your environment from scratch, while a generalist firm may need more back-and-forth to understand cloud-native controls — time that shows up directly in your project timeline. Many organizations also choose an auditor that can support broader compliance needs — ISO 27001 or PCI DSS alongside SOC 2 — since a firm familiar with multiple frameworks can often streamline overlapping evidence requests rather than treating each audit as fully separate.

Auditor vs. Compliance Platform: What's the Difference?

This is a common point of confusion worth addressing directly. A CPA firm is the only entity that can actually issue your SOC 2 report — that's a regulatory requirement tied to independence, and it's not something any software platform does or should claim to do. A compliance automation platform like DSALTA does something different and complementary: it helps you get ready for that audit faster by continuously collecting evidence, monitoring control health, and organizing documentation, so your auditor's fieldwork goes faster and finds fewer surprises. You need both — an independent auditor to issue the report, and (optionally, but increasingly standard) a platform to make the preparation leading up to that audit dramatically less manual.

FAQ

Can a compliance software company issue my SOC 2 report? No. Only a licensed, independent CPA firm can issue a SOC 2 report — this independence is a core requirement of the framework, not a formality. Compliance platforms like DSALTA prepare you for the audit; they don't replace the auditor.

Is there an official "SOC 2 certified auditor" credential? Not exactly — there's no standalone SOC 2 license separate from being a licensed CPA firm operating under AICPA attestation standards. What matters in practice is a firm's demonstrated experience actually performing SOC 2 engagements, which you should verify directly rather than assume from general credentials.

Does the auditor I choose affect my SOC 2 timeline? Yes, meaningfully. Auditors experienced in cloud/SaaS environments generally move through fieldwork faster than generalist firms less familiar with cloud-native controls and evidence.

Should I choose an auditor that also covers ISO 27001 or PCI DSS? It can help if you're pursuing multiple frameworks, since a firm familiar with several can often streamline overlapping evidence requests rather than treating each audit as a fully separate engagement.