NIST 800-171 Compliance Services

Our comprehensive gap assessment evaluates your current security posture against all 110 NIST 800-171 requirements. We interview key personnel, review existing policies and procedures, examine technical configurations, and test security controls to determine your actual compliance status rather than relying on self-reported data.

SPRS Score Calculation: We calculate your DoD Supplier Performance Risk System score using the official methodology, identifying the weighted value of each unmet requirement and providing a prioritized remediation roadmap that maximizes score improvement per dollar invested. Organizations typically see a 30-50 point SPRS improvement within the first 90 days of our remediation program.

Deliverables: Detailed gap analysis report, current SPRS score with calculation methodology, prioritized remediation roadmap, estimated timeline and budget for full compliance, and executive summary suitable for leadership briefings.

The System Security Plan is the cornerstone document of NIST 800-171 compliance. It describes your system boundary, documents how each of the 110 requirements is implemented, identifies responsible parties, and provides the evidence trail that assessors evaluate. A poorly written SSP is the most common reason organizations fail CMMC assessments.

Comprehensive Documentation: We develop SSPs that precisely describe your CUI environment, including system boundaries, data flows, interconnections, user roles, and the specific technical and procedural controls satisfying each requirement. Each control implementation statement references specific policies, configurations, tools, and evidence artifacts.

POA&M Management: For requirements not yet fully implemented, we develop Plans of Action and Milestones with realistic timelines, resource allocations, and interim risk mitigations. Our POA&Ms satisfy DFARS requirements and demonstrate good-faith progress toward full compliance.

Many organizations struggle with NIST 800-171 because CUI is scattered across their entire network, making the compliance boundary enormous. Our CUI enclave approach isolates CUI processing into a purpose-built environment with strict access controls, reducing compliance scope by 60-80% and dramatically simplifying both implementation and ongoing maintenance.

Architecture Components: Segmented network zones with next-generation firewall enforcement, dedicated workstations or virtual desktop infrastructure for CUI access, encrypted file storage with granular access controls, multi-factor authentication for all CUI system access, and comprehensive logging with SIEM integration for real-time monitoring.

Cloud-Based Options: For organizations preferring cloud solutions, we architect CUI enclaves on Microsoft GCC High, AWS GovCloud, or other FedRAMP-authorized platforms that inherit many NIST 800-171 controls, further reducing your compliance burden.

Technical control implementation is where many organizations fail. Purchasing security tools is not the same as properly configuring them to meet NIST 800-171 requirements. Petronella Technology Group, Inc. engineers deploy, configure, and validate every technical control to ensure it satisfies the specific language of each requirement.

Key Implementation Areas: Identity and access management with least-privilege enforcement, FIPS 140-2 validated encryption for data at rest and in transit, endpoint detection and response with automated threat containment, vulnerability management with defined scanning cadences and remediation SLAs, audit log collection and review processes meeting requirement specifics, and network segmentation with validated access control lists.

Validation Testing: After implementation, we conduct technical validation testing for every control, generating evidence artifacts that document proper configuration and operation. This evidence directly supports your SSP and CMMC assessment readiness.

NIST 800-171 requires documented policies and procedures for each control family. These documents must be more than generic templates downloaded from the internet. Assessors look for organization-specific content that reflects your actual operations, naming conventions, tools, and processes.

Complete Policy Suite: We develop 14 control-family-specific policies plus overarching information security policy, acceptable use policy, incident response plan, configuration management plan, contingency plan, and security awareness training program. Each document is tailored to your organization's size, technology stack, and operational reality.

Living Documentation: Policies are maintained in a format that supports ongoing updates, version control, and employee acknowledgment tracking. We establish review cadences and change management processes that keep documentation current as your environment evolves.

Achieving NIST 800-171 compliance is a milestone, not a destination. Requirements demand ongoing monitoring, periodic reassessment, and continuous improvement. Petronella Technology Group, Inc.'s managed compliance program maintains your compliance posture between assessments, preventing the common pattern of passing an assessment only to drift out of compliance within months.

Ongoing Services: Quarterly security control assessments, continuous vulnerability scanning and remediation tracking, annual SSP and POA&M updates, security awareness training program management, incident response support and tabletop exercises, SPRS score maintenance and reporting, and CMMC assessment preparation when certification becomes required.

Compliance Dashboard: Real-time visibility into your compliance status across all 110 requirements, with automated alerting for control degradation, POA&M milestone tracking, and executive reporting that satisfies prime contractor oversight requirements.