SOC 2 auditors in the USA: 119 firms compared

Best for · Enterprise IT Outsourcing Services, Managed Security, Customer Support, Healthcare Claims Management & Processing, and FinTech Services

Differentiator · Integrated compliance approach with strategic guidance; SOC 2+ hybrid assessments combining multiple frameworks (HIPAA, HITRUST, CSA STAR); established relationships with client continuity

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.

Differentiator · #1 issuer of SOC 2 reports in the world with 5,700+ clients and 31,000+ audits completed. Top-three FedRAMP 3PAO; CMMC C3PAO authorized. A-SCEND platform was the first audit-management platform from a top-3 3PAO to achieve FedRAMP 20x Low authorization (Sept 2025), now augmented with EvidenceIQ AI evidence scoring and Cross-Service framework reuse. Acquired by Hg in July 2025 at a $1B+ valuation, accelerating European expansion and AI investment. CEO Scott Price (founder, 2009); Steve Simmons elevated to President in January 2026.

Best for · Nonprofit organizations, commercial companies, and wealthy individuals/estates seeking SOC 2 and LADMF certification

Differentiator · ACAB certification with extensive LADMF experience; PrimeGlobal member with global reach; 10% of net profits donated annually to nonprofits

Best for · Small and mid-sized domestic and international companies needing SOC 1/2/3, ISO 27001, PCI DSS, HITRUST, and HIPAA compliance

Differentiator · PCAOB registered firm headquartered in Atlanta with global presence across North America, Europe, and Asia; NMSDC certified; complete 360° circle of assurance, advisory, risk, and compliance services; serves clients across all 5 main continents

Best for · Cloud service providers and SaaS companies seeking SOC 2 Type 2 and ISO certifications with cybersecurity rigor.

Differentiator · AI-assisted SOC 2 audits with PCAOB registration, deep cybersecurity expertise, and technical assessment services.

Best for · SaaS, FinTech, HealthTech, e-commerce, regulated industries, enterprises to fast-growing startups

Differentiator · CPA-led firm with AICPA standards, end-to-end support from readiness to attestation, global presence with local regulatory expertise, automation-driven compliance execution

Best for · Southeast US companies and Atlanta tech corridor startups

Differentiator · Strong Southeast presence with competitive pricing

Best for · Mid-market tech companies ($10M-$500M revenue) prioritizing speed and technology integration. Private equity-backed companies needing bundled audit, tax, and compliance services. Bay Area & West Coast startups wanting local presence and tech industry fluency. Companies expanding internationally requiring both SOC 2 and ISO 27001/27701. Organizations valuing efficiency over brand prestige alone

Differentiator · Top 20 U.S. accounting firm with 2,000+ employees and 50+ years experience (founded 1969). Audit Ally AI-powered platform (launched Jan 2024) - purpose-built by accountants for auditors with centralized dashboard, AI-powered automation, embedded communication, and AI summarization of audit notes. ANAB-accredited ISO certification body (can issue ISO certificates, not just attest - extremely rare among CPA firms). Integrated audit + tax + consulting + ISO certification under one roof eliminates vendor management overhead. Strong Bay Area presence with deep Silicon Valley expertise and VC relationships

Best for · SaaS companies and organizations seeking first SOC 2 audits with company-specific, customized auditing rather than generic reports

Differentiator · Hundreds of completed examinations; tenured experts with management participation at project level; fixed-fee assessments; customized deliverables with no cookie-cutter content; focus on security program improvement beyond compliance checkbox

Best for · Mid-market businesses across Southeast U.S. seeking comprehensive accounting, tax, and industry-specific advisory services.

Differentiator · Nationally ranked Top 150 firm with 25+ partners delivering assurance, data security, and industry expertise across multi-state Southeast region.

Best for · Tech-driven SaaS, cloud, and fintech companies needing SOC 2 and ISO 27001 audits with a responsive, CPA-led team.

Differentiator · CPA-led specialists averaging 20+ years of SOC 2/ISO experience with proprietary secure portal and remediation guidance.

Best for · Companies needing Big 4-quality SOC 1/2, HIPAA, GLBA, GDPR, FISMA, or NIST audits at boutique prices; diversity-forward organizations

Differentiator · Minority-owned CPA firm founded by former PwC, EY, and KPMG professionals; AICPA Peer Review 'Pass' rating; no sales culture — success driven by team excellence; cloud-centric approach for AWS, Azure, and GCP; deep commitment to diversity and inclusion in cybersecurity

Best for · Companies needing SOC 2, PCI DSS, HIPAA, CMMC, or privacy compliance wanting large-firm resources with specialized boutique attention

Differentiator · Division of Carr, Riggs & Ingram (CRI), a top-25 national CPA firm — large-firm resources with specialized boutique service; experienced QSA team for PCI DSS; dedicated SOC readiness program minimizing audit delays; secure Auditwerx Dashboard for evidence uploads

Best for · Regional companies and mid-market firms seeking personalized service

Differentiator · 6th-largest US CPA firm formed by the Baker Tilly + Moss Adams merger (June 2025); Hancock Askew joined in May 2025, adding Southeast coverage. National reach with strong West Coast presence inherited from Moss Adams. BT Portal for audit management. Senior auditor involvement with 24-48 hour responsiveness.

Best for · Companies that want a long-term audit relationship over a transactional, checkbox engagement — and need a firm that can start immediately and cover SOC 2 alongside ISO 27001, ISO 42001, NIST, or HITRUST without bringing in a second vendor.

Differentiator · Independent, employee-owned CPA firm headquartered in Cincinnati (founded 1965, 225 staff) with roughly 20 people working exclusively on SOC reports. Readiness, audit, and issuance are handled entirely in-house with no outsourcing, by a team distributed across six time zones that serves two-person startups through large multinationals. SOC engagements are priced as a fixed fee rather than billed hourly, so the number is known before fieldwork begins, and the firm holds strong AICPA Peer Review standing. Multi-framework coverage (SOC 2, ISO 27001, ISO 42001, NIST, HITRUST, AI systems compliance) consolidates parallel attestations into one report, with a quality-and-relationship orientation rather than checkbox auditing. Notably fast: able to start engagements immediately, where most peers have multi-month lead times.

Best for · Cloud-native SaaS, IaaS, and PaaS companies (high-growth startups through Fortune 1000 enterprises) needing multi-framework attestation (SOC 2 + ISO 27001 + HITRUST + PCI DSS + CMMC) in a single coordinated engagement. Healthcare technology pursuing HITRUST. Y Combinator-style SaaS startups already running on automation tools like Vanta or Drata. Companies that want boutique-feel partner attention with global-consulting-firm methodology.

Differentiator · One of a handful of US firms eligible to audit against the five highest-regarded frameworks under one roof: ISO 27001, SOC 2, HITRUST, PCI DSS, and CMMC. Branded 'Coordinated Audit' approach maps evidence once across multiple frameworks. 'No surprises' promise published on the readiness-assessment page: clear scoping, no last-minute findings. Cloud-native methodology built specifically for AWS/Azure/GCP. Big 4 alumni team operating remote-first since founding (2014). Extensive experience with the leading automation tools like Vanta and Drata; uses taskBARR audit-management platform plus Audora partnership for 30% efficiency gains. Cameron Kline elevated to VP, Attest Practice Leader (January 2026). Multiple Best Companies to Work For awards (Ingram's 2024; KCBJ Fastest-Growing Tech 2025).

Best for · SaaS startups and tech companies needing fast-tracked SOC 2 and ISO 27001 compliance.

Differentiator · Vanta-certified implementation partners combining CPA audit expertise with embedded consulting for rapid compliance deployments.

Best for · International companies with US subsidiaries needing compliance

Differentiator · Strong international network and cross-border expertise

Best for · Mid-market organizations in healthcare, financial services, and government sectors requiring comprehensive assurance and audit services.

Differentiator · 50-year heritage with industry-embedded professionals who bring direct experience from the sectors they serve, delivering specialized audit expertise.

Best for · Midwest companies, ESOP-owned businesses, organizations seeking established regional firm with 90+ years experience

Differentiator · Founded 1934, 300+ employees including 100+ CPAs and 45 partners, 4 locations, B Corp certified (ethical standards), offers SOC 1/2/3 plus Microsoft SSPA attestations, fixed fee pricing model

Best for · Multi-industry companies seeking integrated assurance, tax, and advisory services with emphasis on technology, financial services, and life sciences sectors.

Differentiator · 71% Net Promoter Score (2x industry average) backed by 1,300+ professionals across 27+ states delivering assurance through proprietary BPM1 service model.

Best for · Southeast US companies and government contractors

Differentiator · Top 25 firm with Auditwerx division for SOC audits, CMMC expertise

Best for · Small to mid-sized SaaS and tech companies seeking SOC 2 compliance and cybersecurity audit readiness.

Differentiator · Principal CPA holds ISO 27001 Lead Auditor certification with 25+ years in SOC 2 and compliance audits.

Best for · Mid-market to enterprise companies, organizations requiring multiple locations/subsidiaries, companies needing Big Four quality without Big Four pricing

Differentiator · 7th-largest US accounting firm created from CBIZ acquisition of Marcum (Nov 2024) with combined $2.8B revenue and 10,000+ employees across 160+ locations. Risk Advisory practice with staff holding CISA/CISSP/QSA/GPEN/GWAPT certifications, extensive SOC 1/2/3 experience, CSA STAR certified auditor. CBIZ provides finance, advisory, insurance services; attest work handled by Mayer Hoffman McCann (MHM CPAs)

Best for · Multi-sector technology and SaaS companies requiring structured SOC 2 Type I/II audits with transparent, evidence-based approach

Differentiator · Independent CPA-licensed firm, technology-forward audit methodology, transparent evidence-based process, global presence with local expertise across multiple continents

Best for · Middle-market businesses seeking comprehensive audit, tax, and advisory services from a nationally ranked CPA firm.

Differentiator · Ranked #1 fastest-growing by Accounting Today with 3,000+ professionals delivering middle-market expertise across audit, tax, and advisory services.

Best for · Middle-market and PE-backed companies in financial services, healthcare, real estate, and entertainment seeking comprehensive audit and advisory services.

Differentiator · Moore Global member with 45+ years delivering industry-specialized assurance and advisory services to complex owner-managed businesses.

Best for · Private and public companies across all industries seeking integrated audit, tax, consulting, and wealth advisory services.

Differentiator · 9,300+ professionals across 120+ US locations delivering seamlessly integrated audit, consulting, tax, wealth advisory, and digital services.

Best for · Mid-market and nonprofit organizations requiring comprehensive accounting, audit, and assurance services.

Differentiator · Established B Corp-certified CPA firm with 70+ years of experience across diverse industries.

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).

Differentiator · One of the world's largest specialist compliance assessors, with 1,000+ team members, 1M+ assessment hours, and 600+ framework experts. Top-three FedRAMP 3PAO. 75% of SOC engagements serve cloud service providers (Google, Amazon, IBM, Microsoft trust Coalfire). 500+ SOC reports issued annually. Owned by Apax Partners since 2020. Coalfire Federal runs as an independent C3PAO entity (DIBCAC CMMC Level 2 re-certified with perfect score, July 2025). Brad Little became CEO January 2026 (ex-Google Cloud, ex-Capgemini), replacing 20-year CEO Tom McAndrew. Compliance Essentials platform launched MCP-compatible Audit AI in 2025-2026.

Best for · Mid-market and private companies — particularly in technology, real estate, government contracting, renewable energy, and South Florida — needing SOC 1/2/3 examinations from a Top 20 US CPA firm with dedicated IT Assurance practice.

Differentiator · Top 20 US CPA firm (~5,000 employees, 350+ partners, 29 offices, $1.12B FY25 revenue). Kelly O'Callaghan, the former IT Audit practice leader, became CEO of CohnReznick LLP (the attest CPA firm) following the February 2025 Apax Funds growth investment, which split the firm into CohnReznick LLP (attest) and CohnReznick Advisory LLC (non-attest, led by David Kessler). SOC practice led by Remi Franklin (IT Audit Partner). Strong South Florida footprint absorbed from the 2023 Daszkal Bolton merger (Boca Raton, Fort Lauderdale, Jupiter; AICPA Advanced SOC Certified auditors).

Best for · SaaS companies, technology-driven enterprises, and compliance-focused organizations needing independent assessment across SOC 2, ISO 27001, ISO 42001, CSA STAR, C5, CMMC, FedRAMP 20X, NIST, privacy, AI governance, or penetration testing

Differentiator · Consilium Labs provides SOC 2 audit services through a structured, evidence-based process, from scoping and evidence review through audit coordination and report delivery. Their approach emphasizes professionalism, clear execution, reliable delivery, and a modernized client experience.

Best for · High-growth tech startups and SaaS companies seeking fast, affordable SOC 2 audits with minimal friction.

Differentiator · Former Big 4 auditors delivering SOC 2 in 2 weeks at 30% below market rate, with dedicated US-based Slack support.

Best for · Enterprises needing compliance across 60+ frameworks through a single consolidated audit; organizations managing multiple annual compliance programs

Differentiator · Compliance as a Service (CaaS) pioneer; One Audit™ satisfies PCI DSS, ISO 27001, GDPR, HIPAA, SOC 2, and NIST 800-53 simultaneously; continuous compliance monitoring year-round; supports 60+ frameworks globally; proprietary ComplianceHub self-assessment platform

Best for · Companies needing SOC 1/2/3 and HITRUST mapping from a full-service CPA firm offering integrated tax, advisory, and compliance services

Differentiator · 55+ year legacy as a 'firm for life'; single-location focus enabling deep client relationships; SOC 2 + HITRUST combined assessments; 120+ professionals offering concierge-level service; integrated tax, employee benefit plan audits, and M&A advisory alongside SOC work

Best for · Mid-Atlantic not-for-profits, automotive dealerships, and construction/real estate firms.

Differentiator · 100+ year regional heritage with deep specialization in automotive dealerships, construction, and nonprofits.

Best for · International businesses with multi-country operations

Differentiator · Global network coordination for international audits

Best for · Healthcare and financial services companies needing data analytics

Differentiator · Risk-based audits with proprietary data analytics and AI tools

Best for · Organizations prioritizing hands-on remediation support and rapid compliance certification across multiple frameworks.

Differentiator · AICPA-licensed specialist offering hands-on remediation alongside auditing, with 100% documented client retention.

Best for · Fast-growing SaaS and fintech companies seeking specialist SOC 2 and cybersecurity audit expertise.

Differentiator · PCAOB-registered CPA firm founded by Grant Thornton partner, combining audit rigor with specialized SOC 2 and cybersecurity expertise, performing 400+ audits annually.

Best for · Fast-growing SaaS companies needing efficient SOC 2 via Drata automation; businesses wanting small-firm attention with broad tax and advisory services

Differentiator · Issues ~200 SOC 2 examinations annually; deep Drata expertise maximizing automation to pass cost savings to clients; audit leads with hundreds of SOC 2 examinations each; also offers corporate tax, M&A diligence, outsourced controller/CFO, and state tax nexus studies — rare breadth for a boutique SOC firm

Best for · High-growth B2B SaaS companies

Differentiator · 50% faster SOC 2 certification; team of Silicon Valley veterans from Google, Tencent, Salesforce, and EY with 10+ years GRC experience

Best for · Large enterprises and public companies with complex environments

Differentiator · Big Four brand recognition, global delivery capabilities

Best for · Credit unions and financial institutions, mid-market professional services firms, and construction companies seeking comprehensive assurance and advisory services.

Differentiator · 90-year-old firm ranked #1 credit union auditor in the US with deep expertise across construction, healthcare, and professional services.

Best for · Technology-driven companies, SaaS platforms, cloud services, FinTech, HealthTech, IT service providers, and organizations managing multiple compliance frameworks seeking consolidated audits

Differentiator · 25+ years compliance expertise, CPA-attested SOC 2 reports, experienced senior auditors, white-glove customer-focused approach, cross-framework expertise mapping controls across SOC 2, ISO 27001, PCI, HIPAA, and NIST

Best for · Highly regulated and technology-focused organizations seeking Big Four-caliber SOC 2 audits with boutique-level partnership and strategic guidance

Differentiator · Big Four expertise with boutique accessibility; strong focus on AI governance and emerging technology risk; eight-year partnership continuity mentioned in testimonials

Best for · Mid-market and rapidly growing companies across construction, manufacturing, healthcare, financial services, and government.

Differentiator · Top 20 CPA firm balancing national strength with local mindset, delivering 100+ years of mid-market expertise across 17 industries.

Best for · Large enterprises and public companies requiring comprehensive audit, assurance, tax, and advisory services across diverse industries.

Differentiator · National CPA firm with 475+ partners providing integrated assurance, tax, advisory, and outsourcing services with deep industry expertise. Postlethwaite & Netterville (P&N) combined into the firm in 2023, extending its reach across the Gulf South.

Best for · Mid-market and enterprise organizations across Financial Services, Healthcare, and Technology requiring comprehensive audit, tax, and advisory services.

Differentiator · TOP 50 National Firm with over 100 years of experience and 800+ professionals serving diverse industries across the Southeast and internationally.

Best for · High-growth tech companies preparing for IPO

Differentiator · Strongest startup/scale-up practice among Big Four

Best for · Startups and established service providers requiring comprehensive SOC 2 Type I and Type II certification

Differentiator · AICPA peer-reviewed firm with global Fortune 500 client base and AWS cloud expertise

Best for · Cloud service providers pursuing FedRAMP combined with SOC 2; DoD contractors needing CMMC; organizations consolidating multiple annual compliance programs

Differentiator · FedRAMP 3PAO with 77+ assessments including FedRAMP High; proprietary XRAMP framework consolidates 6-11 annual authorizations into one continuous workstream; expert at combining FedRAMP + SOC 2 to reuse evidence; acquired Kovr.AI for AI-enhanced compliance; GovRAMP and StateRAMP authorized

Best for · Global mid-market companies

Differentiator · Combined Forvis Mazars network with global reach

Best for · Silicon Valley startups, VC-backed companies, and tech firms needing SOC and ISO 27001 on AWS, GCP, Azure, or Salesforce; companies wanting both SOC and ISO from one ANAB-accredited firm

Differentiator · 75+ years deeply embedded in the Silicon Valley tech and VC ecosystem; ANAB-accredited ISO 27001/27701 certification body; can certify both SOC and ISO in-house; unlimited partner access year-round; deep expertise in biotech, life sciences, and fintech alongside core SaaS

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.

Differentiator · FD's SOC Practice is led by competent Peer Reviewers along with a co-author of the AICPA's official SOC for Service Organizations curriculum — making FD one of the only firms where the person who literally wrote the AICPA's SOC playbook leads client engagements. FD sits on multiple HITRUST councils, giving FD arguably the deepest HITRUST bench in the country. Backed by General Atlantic (2025), FD's signature approach consolidates SOC 2, PCI, HIPAA, and HITRUST into a single evidence-collection cycle — eliminating duplicate audit burden.

Best for · High-achieving cloud tech companies wanting partner-level service, 2-week report turnarounds, and compliance positioned as a business growth tool rather than a checkbox

Differentiator · High-touch boutique with direct partner access throughout every engagement; 2-week report turnaround vs. industry-standard months; principals with 20+ years at top-tier national firms; year-round advisor relationship — not just at audit time; compliance used as strategic differentiator, not minimum-requirements exercise

Best for · PE-backed companies and middle market firms with growth plans

Differentiator · Strong private equity relationships and transaction support

Best for · Mid-market and large private companies across construction, healthcare, and financial services seeking industry-specialized, full-service CPA guidance.

Differentiator · ESOP-owned independent firm with 40+ years of organic growth and 2X industry-average client satisfaction ratings.

Best for · Nonprofit organizations and government contractors

Differentiator · 45+ years of nonprofit accounting expertise with 1,600+ nonprofit clients; on-site audit services; global network through CPAmerica and Crowe Global

Best for · Multistate businesses needing comprehensive accounting, tax, advisory, HR, and risk management services from an established CPA firm.

Differentiator · Broad-service CPA firm combining tax, assurance, and advisory with dedicated HR consulting and risk management divisions.

Best for · Manufacturers, healthcare practices, and family-owned businesses in Ohio seeking responsive CPAs with deep industry expertise.

Differentiator · Team-based approach where clients work with multiple professionals rather than a single account manager; founded 1919 with strong reputation for responsiveness.

Best for · Startups and growth-stage companies

Differentiator · Big Four expertise with startup-friendly pricing and approach

Best for · Mid-market to enterprise organizations across regulated industries seeking comprehensive SOC 2, ISO 27001, HITRUST, and CMMC compliance

Differentiator · Founded in 2005 by Big 4 alumni; acquired by Axiom GRC in November 2025 and merged with AssurancePoint in 2026, expanding SOC and ISO audit capacity; integrated compliance, cybersecurity, and risk-advisory services with strong client and employee retention

Best for · First-time SOC 2 buyers. Pre-Series A through Series B SaaS startups already running Drata, Vanta, Secureframe, or Rippling who want a fixed-fee, 4-to-6-week audit from an accredited CPA firm that also issues ISO 27001 certifications, HIPAA assessments, and PCI DSS reports under one roof. Founders who prioritize speed and price transparency over a brand-name auditor.

Differentiator · Boutique CPA firm with deep startup focus. Quoted 4-6 week turnaround on SOC 2 reports (top quartile for the market), fixed-fee engagements, flexible payment terms. IAS-accredited ISO 27001 certification body (MSCB-314, updated for ISO/IEC 27006-1:2024 in April 2026). Issues real ISO certificates rather than just attestations. Multi-framework one-stop shop: SOC 1/2/3, ISO 27001/27017/27018/27701, HIPAA, PCI DSS, GDPR, NIST, BSI C5. One of the launch-cohort independent audit firms partnered with Rippling Automated Compliance (announced April 2026). Drata Alliance Member with Code of Ethics Pledge; uses Drata internally to run audits even when clients aren't on it. Distributed/global remote team across multiple time zones, English + Spanish.

Best for · Mid-sized private companies across construction, real estate, and professional services seeking Big 4 quality with local partnership.

Differentiator · Independent mid-sized firm delivering Big 4 quality services with personalized local partnership approach.

Best for · SaaS companies and service organizations

Differentiator · SOC 2 is core focus; hands-on partner involvement; technology-driven delivery approach

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

Differentiator · Pricing transparency: documented $25K-$30K bundled packages with clear annual renewal pricing. Strong MSP community reputation with 4+ year client relationships. PCAOB-registered quality standards at accessible mid-market pricing. Boutique personalization at scale (130 employees serving 2,000+ clients = ~15 clients per employee). 18+ years experience (founded 2005) with $42M revenue demonstrates financial stability without PE pressure

Best for · Mid-market to enterprise businesses seeking comprehensive assurance and advisory services across multiple industries.

Differentiator · Top 100 US accounting firm offering integrated executive search, outsourcing, and technology advisory through affiliated companies.

Best for · Regulated industries and companies with international operations

Differentiator · Strong financial services expertise and regulatory knowledge

Best for · Mid-market to enterprise clients across healthcare, technology, and financial services seeking audit and advisory from a large, employee-owned national firm.

Differentiator · Employee-owned firm ranked 42nd largest in the US with 800+ CPAs and specialists across IT controls, healthcare consulting, and SOC reporting.

Best for · Companies across North America needing SOC 1/2/3 with a nationally ranked firm; insurance sector and other regulated industries

Differentiator · Founded 1975; nationally ranked SOC firm; 44 CPAs, 115 employees, 3 offices; CPAmerica and Crowe Global membership for national/international reach; provides resources and guidance before audit begins to ensure client preparedness; 92% client retention rate

Best for · Government contractors and cloud service providers needing specialized FedRAMP, CMMC, and SOC 2 compliance audits with expert advisory.

Differentiator · FedRAMP 3PAO and CMMC C3PAO assessor with proprietary IT Audit Machine platform and AI-enhanced Cybervisor advisory spanning 26+ years.

Best for · Healthcare and PE-backed mid-market organizations needing SOC reports plus parallel HITRUST, ISO 27001, PCI DSS, NIST, or CMMC assessments under one roof

Differentiator · Top-50 US accounting firm with an integrated cybersecurity practice covering SOC 1/2/3, HITRUST (one of the nation's leading HITRUST assessors), ISO 27001, NIST 800-171/53, PCI DSS, CMMC, and HIPAA — supported by 1,000+ professionals across 7 US offices plus a Chennai delivery team

Best for · Silicon Slopes companies and Utah tech corridor startups

Differentiator · Lowest cost provider without sacrificing quality or speed

Best for · Mid-market companies and nonprofits across the Southeast seeking comprehensive assurance and tax services.

Differentiator · Top 100 accounting firm with 100+ years of experience serving diverse industries across the Southeast.

Best for · SaaS providers, cloud service platforms, data hosting companies, healthcare organizations, and internationally-based companies operating in the US

Differentiator · Extensive HIPAA expertise, nationwide presence with remote delivery, emphasis on client preparation and collaboration throughout audit process

Best for · Tech startups and SaaS companies wanting a SOC-specialist CPA firm with fixed-fee pricing

Differentiator · SOC-only CPA firm enrolled in AICPA Peer Review Program — no tax, no financial audits, just SOC reports

Best for · Modern SaaS, FinTech, Healthcare, and AI companies wanting a tech-enabled, lean audit process

Differentiator · Boutique CPA firm built from Big 4 (EY) IT-audit DNA; applies lean-manufacturing principles and AI/tech enablement to SOC engagements; explicitly platform-agnostic (no exclusive GRC partnership); offers SOC 1/2/3, HIPAA, GDPR, ISO 27001/27701/42001, CMMC, and AI assurance

Best for · SOC 2 compliance

Differentiator · Industry-specific expertise across 15+ industries, integrated SOC 2 and ISO 27001 audits, collaborative technology platform, experienced team with CISA and CIA credentials

Best for · Tech startups and established companies seeking fixed-fee SOC 2 and compliance audits with GRC automation support.

Differentiator · Fixed-fee SOC 1/2/3 audits with 1,000+ compliance reports issued and deep integrations across six major GRC platforms.

Best for · Service organizations throughout US, companies seeking long-term compliance partnerships, organizations using Tentacle platform

Differentiator · Founded 2015 by principals with CBIZ and Mayer Hoffman McCann experience (Raja Paranjothi, Director Mihir Acharya), SOC 1/2/3, HIPAA, PCI, HITRUST, ISO 27001, NIST, SOX capabilities, partnership with Tentacle compliance tool for integrated approach announced 2022, lifecycle approach to building long-term compliance infrastructure, serves 250+ companies across North America/Europe/Asia

Best for · Mid-market SaaS, consulting, and government contractors seeking hands-on SOC 2 guidance with deep industry expertise.

Differentiator · CPA firm combining licensed CPAs with cybersecurity professionals, offering industry-specific SOC 2 expertise and practical business value beyond compliance.

Best for · Growing companies wanting a consultative SOC 2 partner that educates throughout the process; organizations also needing tax, M&A diligence, or outsourced CFO services

Differentiator · 170+ employees across Cleveland, Akron, and Lakewood, NJ; translates compliance requirements into plain language; deep Drata expertise passing automation savings to clients; full-service CPA firm adding corporate tax, M&A diligence, and outsourced accounting alongside SOC work; nationwide long-term risk advisor

Best for · Mid-market to enterprise companies across multiple industries seeking comprehensive SOC 2 and cybersecurity compliance services.

Differentiator · Vault-ranked top-10 national firm with authorized CMMC assessment capabilities and integrated cybersecurity advisory services.

Best for · Large enterprises across multiple industries requiring comprehensive audit, tax, and advisory services.

Differentiator · 100+ year heritage with people-first culture and integrated audit, tax, consulting, and wealth management capabilities.

Best for · Multinational enterprises and public companies seeking comprehensive audit and assurance services

Differentiator · 100-year-old international firm with 26 offices globally offering deep multinational audit and tax expertise

Best for · B2B SaaS startups (Series A through growth stage) using Drata, Vanta, or Secureframe and prioritizing speed without sacrificing thoroughness. AI/ML and LLM companies needing SOC 2 + ISO 42001 together — Prescient audits leading AI and large language model providers. Fintech, healthtech, and security vendors at scale. CSPs pursuing FedRAMP authorization. DoD contractors needing a full C3PAO (newly authorized March 2026). Teams already using Slack who want same-day audit communication.

Differentiator · One of the largest SOC 2 auditors globally for SaaS (fintech, healthtech, security) and AI companies — including major LLM providers — running 5,000+ audits a year across all standards. Cybersecurity-first DNA: founded by CREST-certified penetration testers, not traditional accountants. Run from a Nashville HQ with a distributed team of 200+ across the US, EMEA, and APAC and a same-day Slack/Teams response guarantee. SOC 2 engagements start at $10K with report delivery in 4-6 weeks once fieldwork begins. Authorized CMMC C3PAO as of March 2026 (joining FedRAMP 3PAO, PCI QSA, HITRUST, and ANAB ISO accreditation for 27001/27701/42001). The Cacilian PTaaS platform and CAIT (Continuous AI Tester) bring AI-driven offensive security into the audit workflow. A Top 20 CREST and CSA STAR organization globally, operating under Prescient Security Management LLC as an AICPA alternative practice structure.

Best for · IPO-track companies and Fortune 500 enterprises

Differentiator · Premium brand value for investor relations and M&A scenarios

Best for · Cloud-based software companies with multi-tenant environments

Differentiator · Seasoned CPAs and CISAs who perform audits with true assurance diligence, not automated checklists or software-only solutions

Best for · Mid-market to large organizations across financial services, healthcare, and manufacturing seeking experienced multi-service audit and advisory partners.

Differentiator · 10-year Best of Accounting Diamond Award winner with 80+ years of audit and assurance expertise across seven industries.

Best for · Mid-sized tech and SaaS companies

Differentiator · Tech-focused SOC 1 and SOC 2 practice: cloud-native AWS/GCP/Azure fluency, platform-agnostic GRC integration (works with your existing Drata/Vanta/Secureframe, or use their own modern audit platform included in the fee), senior auditors engaging clients directly, reports within 3 weeks of fieldwork, transparent tiered pricing, and a growing AI-compliance focus

Best for · Financial services companies — especially mortgage banking, hedge funds, and alternative investments — needing SOC 1/2 with deep industry expertise

Differentiator · Nearly 40 years specializing in financial services; Mortgage Tech 100 and Mortgage Tech Trendsetter recognition; Inside Public Accounting Top 100 Firm; RM Select benchmarking data gives clients competitive insight; cybersecurity + risk advisory uniquely combined with financial services domain expertise

Best for · Organizations seeking independent SOC audits with CPA-led expertise and risk-based control alignment

Differentiator · Licensed CPA firm with structured 5-step compliance process, risk-based approach aligning controls to business threats, separation of readiness and audit functions for AICPA independence, emphasis on evidence quality and audit preparedness

Best for · Middle-market companies ($50M-$500M revenue) seeking Big Four quality at lower cost

Differentiator · Largest non-Big Four firm with middle market specialization

Best for · Mid-market and enterprise companies across healthcare, financial services, and technology seeking comprehensive assurance, tax, and consulting.

Differentiator · Ranked #33 on IPA Top 500 with 1,000+ professionals and member of Baker Tilly International, the 9th largest global accounting network.

Best for · Early-stage to mid-market SaaS and cloud-native companies needing SOC 1, SOC 2, or SOC 3 reports with hands-on partner involvement

Differentiator · Both partners are KPMG-trained: Jordan Novak (Managing Partner) brings Big Four IT audit plus in-house SOC ownership experience, and Tasya Novak (IT Audit Director, CISA) brings 13+ years of KPMG IT audit. Together they have 30+ years of combined IT audit experience across government, private, and public companies. Every engagement is partner-led from planning through delivery — no junior handoffs, direct communication, and a SharePoint-based client hub to keep evidence collection organized.

Best for · Established businesses and high net worth individuals seeking comprehensive audit, tax, and advisory services from a multi-generational firm.

Differentiator · Multi-state CPA firm with 80+ years of continuity offering comprehensive audit, tax, and advisory services across diverse industries.

Best for · Large enterprises and mid-market companies needing comprehensive SOC 2 audits with deep industry-specific expertise across multiple sectors.

Differentiator · 35-year employee-owned firm ranked #75 nationally, serving 143 Fortune 500 companies with 83% client renewal rate.

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

Differentiator · #1 FedRAMP 3PAO globally with unmatched government/defense expertise. ONLY audit firm with DoD Facility Security Clearance for classified assessments (unassailable competitive moat). Top 50 CPA firm issuing 1,000+ SOC reports annually. 'The Power of One' cross-compliance: SOC + ISO + FedRAMP + HITRUST + PCI + CMMC under single roof. Founded 2002, 20+ years compliance focus

Best for · Mid-Atlantic and Rust Belt companies with manufacturing components

Differentiator · Strong manufacturing and industrial expertise

Best for · Technology, cloud, healthcare, payments, and public-sector-adjacent companies that want SOC 1, SOC 2, PCI DSS, HITRUST, FedRAMP, GovRAMP, or CSA STAR assessment work coordinated under one provider.

Differentiator · Securisea combines a licensed CPA SOC attestation practice with security-assessment credentials across PCI DSS, HITRUST, FedRAMP, GovRAMP, CSA STAR, and ISO 27001/27701. Its SOC pages state that Securisea conducts independent SOC examinations, evaluates SOC 2 controls against AICPA Trust Services Criteria, and separates readiness/non-attest services from formal assessment work under each framework's independence requirements.

Best for · VC-backed SaaS startups and Bay Area tech companies needing SOC 2 to unlock enterprise sales in 4-8 months. Cloud-native companies already using Drata, Vanta, Secureframe, or Sprinto. Companies combining SOC 2 + ISO 27001 (or SOC 2 + ISO 42001 for AI governance) in a single engagement. APAC-connected companies needing Essential 8, CDR, or GS 007 alongside US compliance. ESG-aware organizations that value B Corp status in their vendor chain.

Differentiator · Top 75 US CPA firm (Inside Public Accounting 2025) with deepest Bay Area VC ecosystem footprint among regional firms. Certified B Corporation (rare among CPA firms). Fixed-fee SOC 2 pricing marketed at 25-30% below comparable competitors. ANAB-accredited certification body for ISO 27001, 27701, 27017, 27018, AND ISO 42001 (AI management, issued directly, not via partner). April 2025 acquisition of AssuranceLab added 2,300+ combined clients across Americas/APAC/EMEA, making Sensiba one of the top three issuers of technology audit reports worldwide. PolicyTree auto-generates 21 mapped policies free for clients (also on AWS Marketplace). Managing Partner transition in May 2026: Monic Ramirez takes the role from John Sensiba (who continues as senior partner). Six new partners added May 2025 (largest single-year expansion in firm history).

Best for · Companies wanting Big 4-quality SOC 1/2, HIPAA, and privacy assessments with 70% less client fieldwork effort and minimal business disruption

Differentiator · Firm leaders from PwC, Deloitte, and EY; methodology reduces client fieldwork effort 70% vs. traditional auditors; founder is Ohio Society of CPAs board member; tailored audit reports that highlight clients' differentiating controls; ground-up methodology built for modern compliance tools like Drata

Best for · Multi-industry organizations seeking comprehensive audit, tax, and advisory services with expertise across technology, healthcare, and financial services.

Differentiator · 60+ year legacy with 450+ professionals across California, the South, Southwest, and Pacific Rim; ranked Top 100 CPA firm.

Best for · Mid-market and enterprise SaaS companies needing comprehensive SOC 2 compliance with ongoing advisory support.

Differentiator · 30-year history in SOC reporting combined with full-service national CPA firm resources for complete compliance.

Best for · Growing mid-market companies needing integrated audit, tax, and advisory services with IT assurance capability.

Differentiator · IPA Top 200 firm with 80+ years of experience and dedicated IT security expertise including penetration testing.

Best for · Government agencies and nonprofits requiring comprehensive compliance audits in the Western US.

Differentiator · Deep expertise in GAO Yellow Book audits with Big 4-trained leadership.

Best for · Mid-to-large enterprises and SaaS platforms needing SOC 2, PCI, ISO 27001 audits with integrated managed security.

Differentiator · Integrates SOC 2/PCI/ISO audits with managed security and threat detection via proprietary TrustNavigator™ platform.

Best for · SaaS and FinTech companies seeking fast-track SOC 2 certification with guaranteed timelines and enterprise-grade controls.

Differentiator · Guaranteed SOC 2 certification timelines (6-8 weeks) backed by SLA with 100% in-house auditors and 98% first-time pass rate.

Best for · Mid-market to enterprise companies across manufacturing, construction, healthcare, and financial services in the Southeast seeking integrated audit and attestation services.

Differentiator · PCAOB-registered Top 50 U.S. CPA firm with 750+ professionals providing SOC 2 attestations alongside comprehensive tax and advisory services.

Best for · Mid-market to large enterprises needing comprehensive audit and tax services across multiple industries with a focus on energy, financial services, and healthcare.

Differentiator · Largest independent CPA firm in the Southwest with national reach, ranked #28 among top 100 US accounting firms, emphasizing industry-specific expertise and customized client relationships.

Best for · SaaS and cloud-hosted companies pursuing SOC 2 Type 1 or Type 2 compliance audits with a multi-state CPA firm

Differentiator · 100-year heritage combined with 250+ professionals and Allinial Global partnership delivering nationwide SOC 2 expertise

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

Differentiator · Nationally ranked Top 200 CPA firm; AGN International and Abacus Worldwide member with reach in 75 countries; integrated cybersecurity and internal audit practice under one advisory umbrella; Accounting Today Top Southeast Firms recognition; proactive advisor approach beyond standard audit delivery

Best for · Growing middle-market organizations seeking integrated CPA, audit, and advisory services with deep industry-specific expertise.

Differentiator · 3,000+ professionals delivering integrated solutions across 13+ industries with particular strength in financial services, healthcare, and construction. CompliancePoint, a Georgia security and privacy compliance specialist, became part of Wipfli in May 2026, deepening its SOC 2 and information security practice.

Best for · Emerging industries like cannabis and crypto needing specialized expertise

Differentiator · Leading auditor for cannabis and emerging technology sectors

Best for · Mid-market to enterprise organizations in regulated industries requiring senior-led audit expertise and industry-specific guidance.

Differentiator · 115-year independent firm with senior leadership directly involved in every engagement and specialized expertise in fintech, banking, and healthcare.

Best for · Mid-market financial institutions and professional services firms needing SOC 2 and IT audit expertise.

Differentiator · 79-year heritage with specialized financial institutions audit team and integrated tax/advisory services.

Best for · Startups and growing SaaS, healthcare, and fintech companies (1–100 employees) needing a first-time SOC 2 or HIPAA audit fast and affordably across AWS, Azure, or GCP, with in-house penetration testing, vCISO support, and flexible payment terms

Differentiator · Boutique CPA firm built for startups: the full SOC 1/SOC 2/SOC 3, ISO 27001, HITRUST, and HIPAA stack plus in-house penetration testing and vCISO services, running hundreds of audits a year with a ~30-person team. Co-founded by President & CPA Lance Samona and CTO Patrick Sesi, a Drata Advanced Alliance Member rated 5.0 across 15 reviews, known for the fastest turnaround in the industry, 24/7 support, and flexible payment terms