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Best SOC 2 auditors in the USA: 22 verified firms, compared.
131 verified US firms, from Silicon Valley specialists to the Big Four. Browse below, or tell us your scope and we'll get you 3 quotes. Anonymous until you pick.
Free. Side-by-side on price, timeline, and fit. Pick one firm. Have one call.
Top US Auditors at a Glance
Best for startups: Prescient Security • Best value: KirkpatrickPrice ($12K-$45K) • Fastest: Prescient Security (3-8 mo). See full Top 10 rankings →
Why Choose a US-Based Auditor?
Time Zone Alignment
Critical for audit responsiveness. US auditors work your hours, meaning questions get answered same-day rather than with a 24-hour lag. This alone can shave weeks off your audit timeline.
Regulatory Expertise
US firms have deep expertise in overlapping US regulations like HIPAA, CCPA, and FedRAMP. If you serve US healthcare or government sectors, a US auditor is practically mandatory.
Market Credibility
For US enterprise buyers, a report from a recognizable US CPA firm carries more weight than one from an unknown offshore entity, reducing friction in procurement.
Startup Ecosystem
West Coast and tech-focused US auditors (like Prescient, Sensiba) understand modern CI/CD pipelines, cloud-native stacks, and startup constraints better than traditional firms.
US vs. International Auditors
| Feature | US-Based Auditor | International (Offshore) |
|---|---|---|
| Cost (Type 2) | $20K - $60K | $10K - $30K |
| Time Zone | Matched (EST/PST) | Mismatched (Significant lag) |
| Brand Recognition | High (in US market) | Low (may trigger questions) |
| Security Clearance | Available (FedRAMP/Gov) | Difficult/Impossible |
West Coast Auditors
Linford & Company
Denver, CO
Best For: Silicon Slopes companies and Utah tech corridor startups
Accedere
Denver, CO
Best For: Cloud service providers and SaaS companies seeking SOC 2 Type 2 and ISO certifications with cybersecurity rigor.
Accorp Partners
Los Angeles, CA
Best For: SaaS, FinTech, HealthTech, e-commerce, regulated industries, enterprises to fast-growing startups
Moss Adams
Seattle, WA
Best For: Mid-market companies across all 50 states seeking deep industry expertise paired with multi-service advisory.
RSI Security
San Diego, CA
Best For: Organizations seeking end-to-end SOC 2 support from readiness assessment through ongoing Type I/Type II compliance with hands-on consulting approach
SingerLewak
Los Angeles, CA
Best For: Multi-industry organizations seeking comprehensive audit, tax, and advisory services with expertise across technology, healthcare, and financial services.
East Coast Auditors
Prescient Security
New York, NY
Best For: B2B SaaS startups (Series A through growth stage) using Drata, Vanta, or Secureframe and prioritizing speed without sacrificing thoroughness. AI/ML companies needing SOC 2 + ISO 42001 together. CSPs pursuing FedRAMP authorization. DoD contractors needing a full C3PAO (newly authorized March 2026). Teams already using Slack who want same-day audit communication.
Thoropass
New York, NY
Best For: First-time SOC 2 / ISO 27001 / HIPAA / PCI / HITRUST seekers (under 200 employees) who want one vendor handling both the GRC platform and the audit, eliminating the handoff between Vanta/Drata-style automation and a separate CPA firm. Companies pursuing multiple frameworks who want shared evidence across SOC 2 + ISO 27001 + HITRUST + PCI in a single audit cycle. Mid-market SaaS, fintech, and healthtech seeking 25-50% savings vs. traditional audit firms with fixed pricing.
CBIZ (formerly Marcum LLP)
New York, NY
Best For: Mid-market to enterprise companies, organizations requiring multiple locations/subsidiaries, companies needing Big Four quality without Big Four pricing
Deloitte
New York, NY
Best For: Large enterprises and public companies with complex environments
AAFCPAs
Boston, MA
Best For: Nonprofit organizations, commercial companies, and wealthy individuals/estates seeking SOC 2 and LADMF certification
Audit Peak
New York, NY
Best For: Companies needing Big 4-quality SOC 1/2, HIPAA, GLBA, GDPR, FISMA, or NIST audits at boutique prices; diversity-forward organizations
Citrin Cooperman
New York, NY
Best For: Middle-market and PE-backed companies in financial services, healthcare, real estate, and entertainment seeking comprehensive audit and advisory services.
CohnReznick
New York, NY
Best For: Private companies and middle market organizations
eDelta Consulting
New York, NY
Best For: Highly regulated and technology-focused organizations seeking Big Four-caliber SOC 2 audits with boutique-level partnership and strategic guidance
EisnerAmper
New York, NY
Best For: Large enterprises and public companies requiring comprehensive audit, assurance, tax, and advisory services across diverse industries.
EY (Ernst & Young)
New York, NY
Best For: High-growth tech companies preparing for IPO
Grassi
New York, NY
Best For: Mid-market and large private companies across construction, healthcare, and financial services seeking industry-specialized, full-service CPA guidance.
GRF CPAs & Advisors
Washington, DC
Best For: Nonprofit organizations and government contractors
KLR (Kahn Litwin Renza)
Boston, MA
Best For: Mid-market to enterprise businesses seeking comprehensive assurance and advisory services across multiple industries.
KPMG
New York, NY
Best For: Regulated industries and companies with international operations
OCD Tech
Boston, MA
Best For: Fortune 500 companies and regulated organizations in financial services, government, higher education, and enterprise sectors seeking SOC 2 compliance
PKF O'Connor Davies
New York, NY
Best For: Mid-market to enterprise companies across multiple industries seeking comprehensive SOC 2 and cybersecurity compliance services.
Prager Metis
New York, NY
Best For: Multinational enterprises and public companies seeking comprehensive audit and assurance services
PwC (PricewaterhouseCoopers)
New York, NY
Best For: IPO-track companies and Fortune 500 enterprises
VISTA InfoSec
New York, NY
Best For: SaaS and FinTech companies seeking fast-track SOC 2 certification with guaranteed timelines and enterprise-grade controls.
Withum
Princeton, NJ
Best For: Emerging industries like cannabis and crypto needing specialized expertise
Wolf & Company
Boston, MA
Best For: Mid-market to enterprise organizations in regulated industries requiring senior-led audit expertise and industry-specific guidance.
Midwest & South Auditors
Schellman
Tampa, FL
Best For: Defense contractors needing CMMC + FedRAMP, federal agencies requiring top-tier FedRAMP 3PAO, classified systems operators (ONLY auditor with DoD Facility Security Clearance), healthcare organizations needing HITRUST + SOC 2 bundles, companies wanting Top 50 CPA brand with multi-framework expertise
A-LIGN
Tampa, FL
Best For: Mid-market to enterprise companies that need multiple compliance frameworks (SOC 2 + ISO 27001 + HITRUST + FedRAMP + PCI) under one roof. CSPs pursuing FedRAMP authorization. Companies that want a top-three FedRAMP 3PAO and #1 SOC 2 issuer on the cover of the report.
AARC-360
Atlanta, GA
Best For: Small and mid-sized domestic and international companies needing SOC 1/2/3, ISO 27001, PCI DSS, HITRUST, and HIPAA compliance
Aprio
Atlanta, GA
Best For: Southeast US companies and Atlanta tech corridor startups
AssurancePoint
Atlanta, GA
Best For: SaaS companies and organizations seeking first SOC 2 audits with company-specific, customized auditing rather than generic reports
Auditwerx
Tampa, FL
Best For: Companies needing SOC 2, PCI DSS, HIPAA, CMMC, or privacy compliance wanting large-firm resources with specialized boutique attention
Baker Tilly
Chicago, IL
Best For: Regional companies and mid-market firms seeking personalized service
BDO USA
Chicago, IL
Best For: International companies with US subsidiaries needing compliance
Coalfire
Chicago, IL
Best For: Mid-market through enterprise companies needing multi-framework coverage (SOC 2 + FedRAMP, SOC 2 + PCI, SOC 2 + HITRUST). Cloud service providers pursuing FedRAMP authorization (Coalfire is a top-three 3PAO with 121+ FedRAMP assessments). Payment processors needing PCI DSS at Level 1 scale. Healthcare SaaS pursuing HITRUST + HIPAA. DoD contractors needing CMMC Level 2 via Coalfire Federal (operationally independent C3PAO entity).
Control Logics
Tampa, FL
Best For: Organizations across North America, Europe, and Asia; companies needing SOC readiness assessments before full audit
Crowe LLP
Chicago, IL
Best For: Healthcare and financial services companies needing data analytics
Frazier & Deeter
Atlanta, GA
Best For: Middle-market companies needing consolidated compliance across multiple frameworks — SOC 2 + PCI + HIPAA + HITRUST, or CMMC + FedRAMP + ISO — under a single engagement team. Companies handling sensitive data facing multi-standard audit burdens who want one firm to streamline and de-duplicate evidence collection. Government contractors requiring CMMC/FedRAMP readiness alongside SOC 2. Healthcare and higher-education organizations pursuing HITRUST certification (FD's HITRUST practice leader has managed 300+ assessments). Companies with international operations needing dual AICPA/ISAE reporting. Growth companies that value a firm investing aggressively in scale, talent and technology.
Grant Thornton
Chicago, IL
Best For: PE-backed companies and middle market firms with growth plans
Insight Assurance
Tampa, FL
Best For: Startups and growth-stage companies
KirkpatrickPrice
Nashville, TN
Best For: Small-to-mid-sized organizations ($5M-$100M revenue) without enterprise budgets. First-time SOC seekers wanting bundled pricing transparency ($30K Year 1 package: Gap + Type I + Type II, then $25K annual renewals). MSPs and IT service providers. Healthcare organizations needing HITRUST + HIPAA. Budget-conscious buyers valuing long-term partnership over transactional audits
LBMC
Nashville, TN
Best For: Organizations storing, processing, or transmitting customer data; SaaS and cloud service providers
Mauldin & Jenkins
Atlanta, GA
Best For: Mid-market companies and nonprofits across the Southeast seeking comprehensive assurance and tax services.
NDB
Atlanta, GA
Best For: Tech startups and established companies seeking fixed-fee SOC 2 and compliance audits with GRC automation support.
RSM US
Chicago, IL
Best For: Middle-market companies ($50M-$500M revenue) seeking Big Four quality at lower cost
RubinBrown
Chicago, IL
Best For: Mid-market and enterprise companies across healthcare, financial services, and technology seeking comprehensive assurance, tax, and consulting.
Saltmarsh, Cleaveland & Gund
Nashville, TN
Best For: Established businesses and high net worth individuals seeking comprehensive audit, tax, and advisory services from a multi-generational firm.
Schneider Downs
Pittsburgh, PA
Best For: Mid-Atlantic and Rust Belt companies with manufacturing components
Smith + Howard
Atlanta, GA
Best For: Mid-market and enterprise SaaS companies needing comprehensive SOC 2 compliance with ongoing advisory support.
TrustNet
Atlanta, GA
Best For: Mid-to-large enterprises and SaaS platforms needing SOC 2, PCI, ISO 27001 audits with integrated managed security.
Windham Brannon
Atlanta, GA
Best For: Fortune 1000 and middle-market companies needing integrated cybersecurity, internal audit, SOC, and risk advisory; multi-industry organizations serving clients in 75+ countries
Frequently Asked Questions
Do I need a US-based auditor if my company is in the US?
Generally, yes. While you can use international auditors, US-based auditors understand specific US regulations (CCPA, HIPAA, etc.) and operate in your time zone. For US companies selling to US enterprise customers, a US-based auditor provides the highest level of trust and responsiveness.
How much does a SOC 2 audit cost in the USA?
In 2026, Type 2 ranges for US-based firms are: Specialist firms $15K–$70K, Mid-tier and national firms $25K–$110K, and Big Four firms $45K–$430K. Prices vary based on company size and scope. See /soc-2-audit-cost/sources/ for how each range is calculated.
Can I use a remote auditor?
Yes, 99% of SOC 2 audits are now conducted remotely. US-based auditors use secure platforms (Drata, Vanta, or proprietary portals) to collect evidence, eliminating the need for expensive on-site visits.
What is the timeline for a US SOC 2 audit?
Type 1 audits typically take 2-6 weeks. Type 2 audits require an observation period of 3-12 months (most commonly 3 months for startups), plus 4-6 weeks for reporting.
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