CMMC Assessors (C3PAOs) — verified partner listings on TrustPartners.directory
C3PAOs for defense contractors that need formal CMMC assessments and documented control validation.
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TrustPartners.directory organizes verified GRC partners into 42 service categories so buyers can browse by the job they need done, not by vendor marketing language. Open a category to compare firms by verification tier, framework fit, and location.
Role
8 categories for audit, assessment, and attestation partners.
C3PAOs for defense contractors that need formal CMMC assessments and documented control validation.
3PAOs for cloud providers pursuing FedRAMP authorization or maintaining federal security expectations.
Assessors for healthcare organizations reviewing HIPAA privacy, security, and compliance safeguards.
External assessors for teams preparing HITRUST validated assessments and certification decisions.
Certification bodies for organizations preparing for Stage 1 and Stage 2 ISO 27001 audits.
Independently verified Internal Audit Firms on TrustPartners.directory. Evidence tiers show what we checked—rankings are never pay-for-rank.
Qualified Security Assessors for merchants and service providers that handle cardholder data.
CPA firms and assessors that scope, audit, and issue SOC 2 reports for SaaS teams.
Role
9 categories for readiness, advisory, and program-design partners.
Attorneys for privacy, compliance, contracts, and regulatory questions tied to sensitive data handling.
Partners that design policies, controls, and operating rhythms for scalable compliance programs.
Advisors for governance, risk, and compliance strategy across frameworks, audits, and control programs.
Healthcare-focused consultants for HIPAA readiness, risk reviews, remediation planning, and vendor oversight.
ISMS consultants who help teams build controls, documentation, and ISO 27001 audit readiness.
Specialists who write policies, procedures, and audit-ready documentation that internal teams can maintain.
Privacy experts for GDPR, CCPA, data mapping, DSAR workflows, and program design.
Consultants that prepare SaaS teams for SOC 2 scoping, control design, and evidence collection.
Fractional security leadership for startups and growth companies that need strategic compliance guidance.
Role
7 categories for testing, response, and security support partners.
Consultants for securing AWS, Azure, and GCP environments before audits or enterprise buyer reviews.
Identity and access specialists for SSO, provisioning, least privilege, and access review programs.
Response firms that help contain breaches, investigate impact, and lead recovery under pressure.
24/7 monitoring and detection teams that extend internal security operations and escalation coverage.
Pen test firms for applications, networks, cloud environments, and external attack-surface validation.
Programs that reduce human risk with phishing simulations, role-based education, and awareness training.
Teams that identify exposed systems, prioritize weaknesses, and guide remediation before issues escalate.
Role
5 categories for software buyers evaluating GRC and trust tooling.
Software for centralizing evidence, control workflows, and audit readiness across common frameworks.
Platforms for risk registers, controls, issue tracking, and enterprise compliance oversight.
Tools for drafting, approving, publishing, and attesting to internal policies at scale.
Products that help teams share security documentation and answer buyer diligence faster.
Platforms for vendor intake, assessment, monitoring, and third-party risk review workflows.
Role
13 categories for buyers who need verified vendors, not only advisors.
Outsourcing firms with verified controls for customer support, operations, or back-office delivery.
Hosting providers with verified security and compliance signals for regulated workloads and infrastructure.
Cybersecurity vendors with verified programs and trust signals buyers can review quickly.
Data and analytics vendors with verified controls around pipelines, storage, access, and reporting.
Development partners with verified security practices for product, platform, and DevOps delivery.
Education platforms with verified controls for student, parent, and institutional data handling.
Financial technology vendors with verified controls for payments, money movement, and sensitive data.
HR and payroll platforms with verified controls around employee records, payroll, and permissions.
Healthcare technology vendors with verified safeguards for PHI, workflows, and integrations.
Legal technology vendors with verified practices for confidential client and matter data.
Managed service providers with verified processes for secure administration and client support.
Marketing platforms with verified controls for customer data, integrations, and campaign operations.
SaaS vendors with verified security and compliance posture for faster buyer due diligence.