Compare 149 US SOC 2 firms by fee, turnaround, and fit. Type 2 runs from $15K at specialists up to Big Four pricing, remote over 3 to 12 months. Match the firm tier to what your buyers expect, then get comparable ballparks without booking five sales calls.
Updated / SaaS audit scope and auditor fit → · Not US-specific? Overall best SOC 2 auditors ranking →
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The best U.S.-based SOC 2 auditor depends on budget, scope, and report-recipient requirements: Thoropass for auditor-led work across an existing GRC, Zero Day CPA for lower pricing, and 360 Advanced for multi-framework programs. There is no universal winner.
Thoropass fits a first-time US buyer that wants an auditor-led workflow across its existing compliance tools because its firm-stated client segments run from startup to mid-market and its platform connects to several major GRC systems.
Zero Day CPA fits a US startup or SMB because its estimated Type 2 range starts at $7K, it supports five common GRC tools, and in-house penetration testing reduces a separate vendor handoff.
360 Advanced fits a US company that wants one domestic team coordinating SOC 2 with ISO 27001, FedRAMP, HITRUST, or PCI DSS and serves SMB, mid-market, and enterprise buyers.
Half the firms on this page list a Type 2 starting estimate of $20,000 to $35,000 (shaded), in line with the median ballpark for companies of 201–500 and 500+ employees.
Pricing is shown in USD and fieldwork-to-report timelines in weeks so buyers can compare specialist, full-service CPA, and Big Four options quickly.
Type 1 and Type 2 figures reflect a mix of firm-confirmed numbers, public sources, and our own estimates, refreshed periodically. Actual cost depends on company size, scope, and Trust Service Criteria. See how SOC 2 audit fees compare.
Featured firms pay to appear first. Every firm here cleared our fit bar first; payment cannot add a firm or change its facts.
SOC 2 audits are remote-first, so any firm we track can serve US buyers. Compare the best SOC 2 audit firms, browse every firm in the full SOC 2 auditor directory, or find SOC 2 auditors near you.
Tell us your scope once. We match it with US firms and send 3–10 ballpark quotes back side by side.
We match firms to your scope and bring their ballpark quotes back. Free and anonymized.
Start with the report issuer and the customer’s written requirements. Location matters when a contract, time zone, or site visit makes it relevant.
Request the same criteria, system boundary, observation period, report date, and fee inclusions from each firm.
| Factor | US-based | International |
|---|---|---|
| Type 2 cost | Quote for matched scope | Quote for matched scope |
| Time zone | Confirm engagement team hours | Confirm engagement team hours |
| Additional work | Verify each firm’s role | Verify each firm’s role |
| Report issuer | Confirm licensed CPA | Confirm named CPA issuer |
| Report date | Request dated plan | Request dated plan |
Five stages from first scoping call to issued Type 2 report. Fast Type 1 projects can close in weeks; Type 2 depends on the observation period and evidence quality.
US companies typically start SOC 2 when enterprise prospects ask for it in security review, when a sponsor bank or healthcare buyer requires vendor assurance, or when a procurement team will not accept policies alone.
Type 1 can unblock a deal quickly. Type 2 is the durable report most US enterprise buyers expect because it proves controls operated over time.
HIPAA, PCI, FedRAMP, CMMC, NYDFS, and ISO 27001 change evidence requirements. Pick an auditor that can map those frameworks before fieldwork starts.
Readiness closes control gaps. The observation period then proves the controls ran consistently, usually for 3-12 months depending on buyer expectations.
Keep the report under NDA, pair it with a trust-center summary, and reuse the evidence to shorten security questionnaires and renewal reviews.
Four common questions from US buyers - local auditor fit, cost, remote delivery, and Type 1 vs Type 2 timing.
No universal location rule applies. Check who signs the SOC 2 report, the CPA firm's licensure, and any location requirement in your customer's contract. Then compare time-zone coverage, your SaaS system boundary, the proposed report date, and fees for the same scope. For tenant isolation, CI/CD, and cloud-vendor controls, see our SaaS auditor comparison.
In 2026, Type 2 ranges for US-based firms are: Assurance-specialist firms $15.5K–$50K, Full-service CPA firms $30K–$80K, and Big Four firms $65K–$200K. Prices vary based on company size and scope. See /soc-2-audit-cost/sources/ for how each range is calculated.
Yes. Many firms can collect evidence and conduct interviews remotely. Ask each firm how it will obtain and protect evidence, whether any site visit is needed for your system boundary, and who will be available during your working hours. Remote delivery does not determine where the report issuer is licensed.
The schedule depends on readiness, the report type, the agreed Type 2 observation period, and fieldwork. Ask the CPA for dated kickoff, observation, fieldwork, and report milestones, then confirm the report will arrive before the buyer's deadline.
SOC 2 reports must be issued by licensed Certified Public Accountants under AICPA standards (SSAE 18). Confirm CPA licensure, peer-review standing, and SOC 2 attestation authority before signing.
Many firms sell SOC 2 readiness or compliance software but cannot issue the report. If you need a report for procurement, verify who signs the attestation and whether the signing firm is in scope from day one.
Pricing estimates and timelines are based on public information, submitted data, and internal benchmarks. Actual cost varies by company size, control maturity, Trust Service Criteria, and observation period.
Tell us your scope, buyer deadline, and framework overlaps. We send it to US firms that fit and ask for a ballpark, timeline, and tradeoffs.
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