ISMS Directory

    The 12 Best ISO 27001 Consultants in 2026

    Ranked by real buyer interest on ISMS Directory over the last 30 days. Updated November 2026.

    1. 1. GRC Advisory

      Polish GRC and SAP security consultancy with 15+ years of enterprise access governance, SoD, and risk-compliance implementations.

      • ISO 27001
      • GDPR
      • SOX
      • NIS2
      • DORA
      • Multi-framework
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    2. 2. MeasurementPros - Implementation and Assurance

      MeasurementPros brings hands-on implementation experience across security (ISO 27001, SOC 2) and governance (DORA, NIS2, CRA, EU AI Act, AIUC-1, GDPR, vCISO), serving clients in the EU as well as North American companies exposed to EU law.

      • ISO 27001
      • ISO 42001
      • ISO 27701
      • SOC 2 Type 2
      • GDPR
      • DORA
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    3. 3. Cloud360 Technologies

      Building an AI-native GRC platform that replaces manual, outdated governance processes with agentic frameworks designed for organizations enabling AI. Cloud360 delivers real-time security posture, AI-generated cyber risk profiles, continuous attack surface discovery, and AI pen testing — all built on the principle that compliance does not equal secure. Core focus areas: → AI governance frameworks for mid-market companies enabling AI across their engineering organizations → Continuous compliance monitoring for SOC 2, ISO 27001, and EU AI Act → Shadow AI detection and observability — if you can't see it, you can't secure it → Agentic GRC workflows that replace analyst headcount with purpose-built AI agents

      • ISO 27001
      • ISO 42001
      • SOC 2 Type 2
      • GDPR
      • SOC 2
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    4. 4. Axipro

      Fixed-fee audit readiness for ISO 27001, SOC 2, and 20+ frameworks

      • ISO 27001
      • ISO 42001
      • ISO 27701
      • SOC 2 Type 2
      • GDPR
      • DORA
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    5. 5. SrivelEnterprise

      A seasoned professional with 17+ years of fruitful experience with expertise in ISO Certification, SSAE18 (SOC1 and SOC2), GDPR, Quality Management System (ISO 9001), Information Security Management System (ISO 27001), Information Technology Service Management System (ISO 20001), Asset Management System (ISO 55001), HIPAA, Certified Data Protection Officer, Business Continuity, VAPT, Risk Management, Secure Coding, Data Privacy, Processing Integrity, E-learning, Training and Mentoring, Design Thinking, Operations, Strategy, People Management, Technocommercial Acumen. Management Systems: Effectively implemented, maintained, audited ISO 9001 (QMS), ISO 27001 (ISMS), ISO 23001 (BCMS), ISO 20001 (ITSM), ISO 27701 (PMS), ISO 42301 (AIMS), CMMI, SSAE18 (SOC1, SOC2), HIPAA, HITRUST, HITECH, CCPA, GDPR, FedRAMP standards in various organizations across industries. Strong understanding of business best practices w.r.t. quality, information security, continuous process improvements.

      • ISO 27001
      • ISO 42001
      • SOC 2 Type 2
      • GDPR
      • Multi-framework
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    6. 6. Hard2bit

      Madrid cybersecurity firm offering GRC consulting for ISO 27001, NIS2, DORA, and ENS alongside technical security services.

      • ISO 27001
      • NIS2
      • DORA
      • ISO 22301
      • ISO 9001
      • Multi-framework
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    7. 7. MatrixGard

      Fractional DevSecOps for pre-seed and seed startups: SOC 2, ISO 27001 and DPDP Act readiness, cloud security and AWS hardening, delivered by the engineer who does the work. Readiness and remediation, not attestation. Remote, worldwide.

      • ISO 27001
      • SOC 2 Type 2
      • PCI DSS
      • Multi-framework
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    8. 8. vCISO

      Virtual CISO is a service that provides Cyber- and information security advisory to danish companies in need of an experienced advisor with more than 20 years of experience in areas covering private enterprise, government, defense and academia.

      • ISO 27001
      • NIS2
      • CIS Controls
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    9. 9. CK Associates

      CK Associates is a leading ISO consulting firm with 20+ years of experience and 450+ successful certification projects. We help organizations implement, audit, and achieve ISO standards, including ISO 27001, ISO 42001, ISO 9001, and other compliance frameworks.

      • ISO 27001
      • ISO 42001
      • SOC 2 Type 2
      • Multi-framework
      • ISO 13485
      • ISO 14001
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    10. 10. Gritera

      Gritera specializes in information security management services, including advisory for ISO 27001 implementation and risk management.

      • ISO 27001
      • GDPR
      • ISO 27701
      • ISO 42001
      • DORA
      • NIS2
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    11. 11. GRCC Jahn

      Governance, Risk & Compliance consulting by Viktor Jahn. One point of contact from start to finish. Audits, advisory, and training across NIS2, BISG, TISAX, DORA, GDPR, and ISO 27001. Pragmatic, hands-on and built for practice.

      • ISO 27001
      • ISO 42001
      • GDPR
      • Multi-framework
      • NIS2
      • DORA
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    12. 12. Circl3.tech

      Circl3.tech is a Cyprus-based cybersecurity advisory firm specialising in vCISO services, information security governance, risk management, and regulatory compliance. Founded by Panos Panayiotou — an ISO/IEC 27001 Lead Implementer (Senior) and seasoned CISO with over 25 years of experience across banking and government sectors — Circl3.tech supports public and private sector organisations in designing and implementing cybersecurity frameworks, ISMS control environments, and strategic security programmes aligned with ISO/IEC 27001 and NIS requirements.

      • ISO 27001
      • NIS2
      • DORA
      • GDPR
      • PCI DSS
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    Compare at a glance

    Same order as the ranked list above. Ranking reflects visitor interest measured on ISMS Directory over the last 30 days, not paid placement. Framework and region values come from the directory catalogue.
    RankProviderListed frameworksListed regionsProfile
    1GRC AdvisoryISO 27001, GDPR, SOX, NIS2, DORA, Multi-frameworkPoland, EuropeView profile
    2MeasurementPros - Implementation and AssuranceISO 27001, ISO 42001, ISO 27701, SOC 2 Type 2, GDPR, DORAUnited States, United Kingdom, UAE +16 moreView profile
    3Cloud360 TechnologiesISO 27001, ISO 42001, SOC 2 Type 2, GDPR, SOC 2GlobalView profile
    4AxiproISO 27001, ISO 42001, ISO 27701, SOC 2 Type 2, GDPR, DORAEurope, Portugal, Singapore +4 moreView profile
    5SrivelEnterpriseISO 27001, ISO 42001, SOC 2 Type 2, GDPR, Multi-frameworkAfrica, Asia, Australia +9 moreView profile
    6Hard2bitISO 27001, NIS2, DORA, ISO 22301, ISO 9001, Multi-frameworkSpain, Europe, Latin AmericaView profile
    7MatrixGardISO 27001, SOC 2 Type 2, PCI DSS, Multi-frameworkCanada, India, Singapore +10 moreView profile
    8vCISOISO 27001, NIS2, CIS ControlsEurope, DenmarkView profile
    9CK AssociatesISO 27001, ISO 42001, SOC 2 Type 2, Multi-framework, ISO 13485, ISO 14001IndiaView profile
    10GriteraISO 27001, GDPR, ISO 27701, ISO 42001, DORA, NIS2Europe, NorwayView profile
    11GRCC JahnISO 27001, ISO 42001, GDPR, Multi-framework, NIS2, DORAAustria, Belgium, Denmark +5 moreView profile
    12Circl3.techISO 27001, NIS2, DORA, GDPR, PCI DSSEuropeView profile

    Frequently asked questions

    How is this ISO 27001 Consultants ranking determined?
    Providers are first filtered to those that substantively cover ISO 27001 Consultants 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 ISO 27001 Consultants. 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 ISO 27001 Consultants expertise. Ranking is earned through genuine directory demand — there is no way to pay for a position.