NIST 800-171 Compliance Consulting Services

Continuous Compliance and Operationalized Security for organizations that handle controlled unclassified information (CUI)

NIST SP 800-171 provides recommended security requirements for protecting the confidentiality of Controlled Unclassified Information (CUI) when it is processed, stored, or transmitted in nonfederal systems and organizations.

Avertium helps defense contractors, federal suppliers, regulated organizations, and enterprises interpret, implement, validate, and operationalize NIST SP 800-171 requirements through compliance advisory, cybersecurity operations, security testing, risk management, and Microsoft security expertise.

 

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Avertium provides the expertise, technology, and ongoing support needed to achieve measurable compliance and security outcomes 

  • Conduct a NIST risk assessment and gap analysis

  • Build solid policies and procedures

  • Address security gaps

  • Provide penetration testing

  • Strengthen defenses against ransomware and data theft 

NIST 800-171 COMPLIANCE CONSULTING EXPERTISE

Navigating NIST SP 800-171 requires more than understanding requirements: It demands experienced advisors who know how to identify CUI environments, define system scope, assess control implementation, document gaps, and build sustainable programs that support federal contract obligations and assessment alignment.

Avertium’s NIST compliance experts help organizations understand, implement, validate, and maintain safeguards across access control, configuration management, incident response, identity, vulnerability management, system integrity, supply chain risk management, and continuous monitoring domains:

CUI Program Guidance

Help organizations understand where CUI resides, how it flows, which systems are in scope, and how NIST SP 800-171 requirements apply to their contracts and operating environment.

Scope Definition + Gap Remediation

Define system boundaries, assess requirement implementation, identify gaps, and build actionable remediation roadmaps that reduce risk and support compliance objectives. 

Requirement Expertise

Provide practical expertise across NIST SP 800-171 requirement families, including access control, audit and accountability, configuration management, identification and authentication, and system integrity.

Continuous Compliance

Transform a point-in-time assessment into an ongoing program by regularly monitoring controls, validating effectiveness, identifying gaps, supporting SSP and POA&M, and generating assessment-ready evidence to protect CUI year-round. 

Assessment-Ready Support

Deliver assessment readiness support, evidence guidance, remediation planning, and ongoing advisory throughout the NIST 800-171 compliance lifecycle.

Why NIST 800-171 Compliance is Challenging

Nonfederal organizations that process, store, or transmit CUI face increasing pressure to safeguard that data, meet federal contract requirements, prepare for assessments, maintain accurate documentation, and demonstrate that security requirements are implemented and operating effectively. 

Unfortunately, many organizations struggle with:

 Identifying where CUI is processed, stored, and transmitted

  Defining accurate system boundaries and reducing unnecessary scope

 Maintaining SSPs, POA&Ms, evidence, and remediation plans across teams

  Aligning NIST SP 800-171 with DFARS, CMMC, customer, and contractual expectations

  Demonstrating continuous requirement implementation between assessments 

Our NIST SP 800-171 compliance consultants help organizations move beyond checkbox compliance to build a sustainable CUI protection program that reduces risk, strengthens security, supports contract obligations, and improves readiness for assessments. 

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KEY BENEFITS OF AVERTIUM'S NIST 800-171 COMPLIANCE SERVICES

 Extend internal teams and simplify operations by combining compliance assessments, managed security services, offensive security testing, governance, and ongoing monitoring under a single experienced cybersecurity and compliance partner. 

Reduce CUI Compliance Risk

Identify and remediate security and compliance gaps through NIST SP 800-171 assessments, gap analyses, and ongoing advisory services that help reduce risk, improve compliance maturity and avoid loss of contracts and business opportunities.

Strengthen CUI Protection

Improve protection across access, identity, endpoints, networks, applications, logging, monitoring, data handling, and incident response with safeguards aligned to NIST SP 800-171 requirements. 

Achieve Continuous Compliance

Move beyond the stress of annual assessments with ongoing compliance oversight that helps maintain readiness year-round. Protect systems through continuous monitoring, threat detection, and control validation.

Accelerated Threat Detection and Response

Leverage 24/7 XDR + MXDR, AI-assisted analytics, and expert security operations to detect, investigate, and respond to threats that could impact regulated systems and business operations. 

Support Requirement Implementation and Validation

Align security programs with applicable NIST SP 800-171 requirement families through governance, monitoring, identity security, vulnerability management, response, and risk management services.

Improved Assessment Readiness

Proactively generate the documentation, reporting, evidence, SSP updates, POA&M inputs, and compliance artifacts needed to support assessments, and executive reporting requirements. 

 

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Maximize Microsoft Security Investments

Organizations that handle CUI often already own Microsoft security capabilities through Microsoft 365 E3, E5, and E7 licenses, but many struggle to fully configure, integrate, monitor, and optimize them in support of NIST SP 800-171 requirements.

By combining deep Microsoft expertise with NIST compliance experience, Avertium helps Microsoft-forward organizations get more value from their Microsoft security investments by configuring, integrating, and managing Microsoft Defender, Sentinel, Entra ID, Purview, Intune, and related technologies to improve CUI protection, threat visibility, identity controls, data governance, and assessment readiness.

ASSESS AND OPTIMIZE MICROSOFT SECURITY CONTROLS

Identify misconfigurations, coverage gaps, and underused capabilities across Microsoft Defender XDR to strengthen detection, response, and protection for systems that store, process, or transmit CUI.

STRENGTHEN ACCESS, DATA, AND DEVICE SAFEGUARDS

Use Microsoft Entra ID, Purview, and Intune to enforce MFA, conditional access, DLP, sensitivity labeling, compliance, workflows, secure management and more for CUI environments.

MONITOR AND RESPOND TO THREATS AFFECTING CUI

Continuously review, investigate, and escalate Microsoft security telemetry through Fusion MXDR to help reduce breach risk, support incident response, and validate operational control performance. 

MAP MICROSOFT CONTROLS TO NIST 800-171 REQUIREMENTS

Demonstrate how Microsoft security tools support CUI protection while helping organizations strengthen evidence, reporting, and assessment readiness.

Why Organizations Choose Avertium

  Security + Compliance in One Trusted Partner

Reduce complexity by unifying cybersecurity operations, compliance consulting and assessment, and security testing.

  NIST 800-171 and CUI Expertise

Benefit from experienced security and compliance professionals who understand CUI protection, NIST 800-171 implementation, and federal contract requirements.

  Continuous Risk Reduction

Smoothly move from reactive, last-minute compliance preparation to a proactive, year-round readiness model. 

  Assessment-Ready Documentation

Generate the evidence, reports, SSP updates, POA&M inputs, and requirement artifacts needed to support assessments and executive reporting.

  AI-powered Security Operations

Combine advanced analytics, automation, and experienced security experts for faster threat detection and response.

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AVERTIUM SOLUTIONS FOR MICROSOFT SECURITY

HOW IT WORKS

Comprehensive Approach to NIST 800-171 Compliance

Avertium applies our Assess, Design, Protect approach to fuse compliance , security operations, risk management, and continuous validation into a single program designed to help organizations secure their systems and maintain NIST SP 800-171 alignment year-round.

ASSESS

Avertium's NIST 800-171 compliance consulting services identify CUI risks, scoping issues, requirement gaps, and evidence deficiencies before they become findings, assessment blockers, or security incidents.

DESIGN

Our NIST 800-171 experts develop governance models, policies and procedures, remediation strategies, and compliance roadmaps aligned to your business practices and risk tolerance.

PROTECT

Avertium implements and operates the security safeguards necessary to protect CUI, reduce risk, support incident response, and validate requirement performance to maintain alignment with applicable NIST SP 800-171 requirements. 

Get Started Today.

Whether you are a defense contractor, federal supplier, regulated enterprise, or organization that processes, stores, or transmits CUI, Avertium can help you build a stronger safeguard environment, reduce compliance risk, and maintain continuous assessment readiness.

Protect CUI. Reduce risk. Stay assessment ready. Partner with Avertium to operationalize NIST SP 800-171 compliance year-round.

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