The 12 Best SOC 2 Auditors in 2026
Ranked by real buyer interest on ISMS Directory over the last 30 days. Updated November 2026.
1. DNV
Global assurance provider offering ISO 27001 certification and risk-based management system audits, with deep Nordic and critical-infrastructure roots.
- SOC 2
- ISO 27001
- ISO 22301
- ISO 9001
- Multi-framework
2. Schellman
Leading US IT compliance attestation firm for SOC 1/2/3, PCI, and ANAB-accredited ISO certifications including ISO 27001 and ISO 42001.
- SOC 2
- SOC 1
- ISO 27001
- ISO 42001
- ISO 27701
- ISO 22301
3. Linford & Company
Denver CPA firm of former Big Four auditors specializing in SOC 2, HIPAA, FedRAMP, and HITRUST assessments.
- SOC 2
- HIPAA
- FedRAMP
- HITRUST
- Multi-framework
4. GCAI Certification
Global Certification & Accreditation Institute (GCAI) delivers IAS-accredited ISO 27001 certifications and compliance audits across SOC 2, GDPR, HIPAA, NIST & AI standards. Built for startups and SMBs — rigorous audits, faster timelines, globally recognized results.
- ISO 27001
- SOC 2 Type 2
- ISO 27701
- ISO 42001
5. Johanson Group LLP
Boutique US CPA firm specializing in SOC 1/2/3 examinations and related security and compliance audits for growing companies.
- SOC 2
- SOC 1
- ISO 27001
- HIPAA
- Multi-framework
- CCPA
6. BARR Advisory
Cloud-native compliance firm offering SOC 2 audits and ISO 27001 certification with coordinated multi-framework programs for SaaS.
- SOC 2
- ISO 27001
- FedRAMP
- HITRUST
- CMMC
- PCI DSS
7. Coalfire
Enterprise cybersecurity and compliance assessment firm for FedRAMP, SOC 2, HITRUST, PCI, ISO 27001, and government frameworks.
- SOC 2
- FedRAMP
- HITRUST
- PCI DSS
- ISO 27001
- CMMC
8. Sensiba
Bay Area CPA firm with a technology assurance practice for SOC 2 and related reports.
- SOC 2
- SOC 1
- ISO 27001
- Multi-framework
- CMMC
- CSA STAR
9. Proks Certification GmbH
ProksCert (Proks Certification GmbH), a DAkkS-accredited certification body based in Germany, specialising in ISO/IEC 27001 and ISO 9001 certifications.
- SOC 2
- ISO 27001
- ISO 42001
- SOC 2 Type 2
- NIS2
- DORA
10. Intercert
Intercert provides internationally accredited auditing, certification, and training services across various management systems and standards.
- SOC 2
- ISO 27001
- ISO 9001
- ISO 14001
- ISO 45001
- ISO 50001
11. Prescient Assurance
US CPA firm focused on SOC 2, ISO 27001, and related assurance for technology companies.
- SOC 2
- SOC 1
- ISO 27001
- HIPAA
- HITRUST
- Multi-framework
12. Sage Audits LLP
Denver-based CPA firm specializing exclusively in SOC 1 and SOC 2 examinations for SaaS and tech companies. Partner-led engagements, independent control testing against Trust Services Criteria, and Big Four IT audit experience. No junior auditors. CPA, CISSP, CISA, CRISC, CISM, CITP.
- SOC 2 Type 2
- SOC 1
- SOC 2 Type I
- SOX
Compare at a glance
| Rank | Provider | Listed frameworks | Listed regions | Profile |
|---|---|---|---|---|
| 1 | DNV | SOC 2, ISO 27001, ISO 22301, ISO 9001, Multi-framework | Global, Europe, Norway +6 more | View profile |
| 2 | Schellman | SOC 2, SOC 1, ISO 27001, ISO 42001, ISO 27701, ISO 22301 | United States, Global, Europe +1 more | View profile |
| 3 | Linford & Company | SOC 2, HIPAA, FedRAMP, HITRUST, Multi-framework | United States, Global | View profile |
| 4 | GCAI Certification | ISO 27001, SOC 2 Type 2, ISO 27701, ISO 42001 | Global | View profile |
| 5 | Johanson Group LLP | SOC 2, SOC 1, ISO 27001, HIPAA, Multi-framework, CCPA | United States, Global | View profile |
| 6 | BARR Advisory | SOC 2, ISO 27001, FedRAMP, HITRUST, CMMC, PCI DSS | United States, Global | View profile |
| 7 | Coalfire | SOC 2, FedRAMP, HITRUST, PCI DSS, ISO 27001, CMMC | United States, Global, United Kingdom +1 more | View profile |
| 8 | Sensiba | SOC 2, SOC 1, ISO 27001, Multi-framework, CMMC, CSA STAR | United States | View profile |
| 9 | Proks Certification GmbH | SOC 2, ISO 27001, ISO 42001, SOC 2 Type 2, NIS2, DORA | Austria, Belgium, Denmark +15 more | View profile |
| 10 | Intercert | SOC 2, ISO 27001, ISO 9001, ISO 14001, ISO 45001, ISO 50001 | Global | View profile |
| 11 | Prescient Assurance | SOC 2, SOC 1, ISO 27001, HIPAA, HITRUST, Multi-framework | United States, Global | View profile |
| 12 | Sage Audits LLP | SOC 2 Type 2, SOC 1, SOC 2 Type I, SOX | United States | View profile |
Frequently asked questions
- How is this SOC 2 Auditors ranking determined?
- Providers are first filtered to those that substantively cover SOC 2 Auditors in the ISMS Directory catalogue, then ordered by real buyer interest — the directory traffic and engagement each provider received over the last 30 days. It is not paid placement and it is not an editorial opinion.
- How often is the list updated?
- The ranking recomputes from live directory-demand data on a rolling 30-day window and refreshes roughly every 15 minutes, so it reflects current interest rather than a one-off 2026 snapshot.
- Why are only 12 providers shown?
- This list shows the top providers by demand for SOC 2 Auditors. Pages with fewer than three substantively-matching providers are not published at all, so every entry here represents a real, comparable option.
- How can my company appear here?
- Get listed in ISMS Directory with SOC 2 Auditors expertise. Ranking is earned through genuine directory demand — there is no way to pay for a position.