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NIST CSF 2.0 ยท SP 800-53 ยท SP 800-171 ยท RMF ยท CMMC 2.0

NIST Cybersecurity Gap Assessment

Independent, evidence-based NIST assessments that quantify your real risk, satisfy auditors, and give you a clear roadmap โ€” not a 200-page PDF that sits on a shelf. Serving federal contractors, healthcare organizations, and regulated businesses across Washington, DC.

CSF 2.0
Latest NIST Framework
110+
SP 800-171 Controls Assessed
100%
First-Attempt Audit Pass Rate
2โ€“4 wks
Typical Assessment Duration

NIST Assessment Services We Deliver

Every engagement is tailored to DC market realities โ€” regulatory complexity, competitive density, and client expectations.

NIST CSF 2.0 Maturity Assessment

A structured evaluation of your security posture across all six CSF 2.0 functions, producing a current-state profile, target-state profile, and a prioritized gap list with effort and risk-reduction estimates for every finding.

  • Govern โ€” organizational context, risk strategy, supply chain risk
  • Identify โ€” asset inventory, risk assessment, improvement planning
  • Protect โ€” identity management, data security, platform security
  • Detect โ€” continuous monitoring, adverse event analysis
  • Respond โ€” incident management, communication, analysis
  • Recover โ€” incident recovery, communication
  • Maturity tier scoring (Partial โ†’ Adaptive) per function
  • Executive summary and board-ready risk heat map

NIST SP 800-53 Rev 5 Control Assessment

A deep-dive evaluation of your security and privacy controls against the NIST SP 800-53 Rev 5 catalog โ€” required for federal systems and increasingly expected by enterprise customers and cyber insurers.

  • Assessment across all 20 control families (AC, AU, CA, CM, CP, IA, IR, MA, MP, PE, PL, PM, PS, PT, RA, SA, SC, SI, SR, AT)
  • Control-by-control determination: Satisfied, Other Than Satisfied, Not Applicable
  • System Security Plan (SSP) review and gap documentation
  • Plan of Action & Milestones (POA&M) development
  • Evidence collection and artifact review
  • Alignment with FedRAMP and FISMA requirements

NIST SP 800-171 & CMMC Readiness

Purpose-built assessment for defense contractors and organizations handling Controlled Unclassified Information (CUI) โ€” covering all 110 SP 800-171 practices required for CMMC 2.0 Level 2 certification.

  • Scoping of CUI environment and system boundary
  • Assessment of all 110 NIST SP 800-171 Rev 2 practices
  • SPRS (Supplier Performance Risk System) score calculation
  • System Security Plan (SSP) development and review
  • Plan of Action & Milestones (POA&M) for gaps
  • C3PAO pre-assessment and audit preparation
  • CMMC Level 3 / NIST SP 800-172 enhanced controls assessment

NIST Risk Management Framework (RMF)

Full RMF lifecycle support for federal agencies and contractors seeking an Authority to Operate (ATO) โ€” from categorization and control selection through assessment, authorization, and continuous monitoring.

  • Prepare โ€” organization-level risk decisions and roles
  • Categorize โ€” FIPS 199 / SP 800-60 impact classification
  • Select โ€” tailored SP 800-53 control baseline
  • Implement โ€” control implementation guidance and documentation
  • Assess โ€” independent security control assessment (SCA)
  • Authorize โ€” authorization package development (SSP, SAR, POA&M)
  • Monitor โ€” continuous monitoring strategy and reporting

Cybersecurity Risk Assessment

Quantitative and qualitative risk assessments aligned with NIST SP 800-30 and SP 800-39 โ€” giving leadership a defensible, prioritized view of organizational risk that informs budget and strategy decisions.

  • Threat identification using NIST SP 800-30 guidance
  • Vulnerability identification across infrastructure and applications
  • Likelihood and impact analysis (qualitative and semi-quantitative)
  • Risk determination and risk response planning
  • Supply chain risk management (SCRM) per NIST SP 800-161
  • Risk register development and ongoing maintenance

Supply Chain & Third-Party Risk Assessment

A structured evaluation of your ICT supply chain risks aligned with NIST SP 800-161 Rev 1 โ€” the gold standard for identifying, assessing, and responding to cybersecurity risks introduced through vendors, suppliers, and technology providers.

  • Supplier and vendor risk identification and categorization
  • NIST SP 800-161 Rev 1 C-SCRM practice assessment
  • Third-party questionnaire design and review (SIG, CAIQ, custom)
  • Contractual security requirement review (FAR/DFARS clauses)
  • Critical supplier designation and monitoring program
  • Software Bill of Materials (SBOM) analysis
  • Supply chain incident response planning
  • C-SCRM policy and governance framework development
Why DC Businesses Choose Us

Built for the Washington, DC Market

We're based at 1717 N Street NW in DC. We understand local compliance, federal contracting nuance, and what DC clients expect โ€” and we've built our process around it.

1717 N St NW, Washington DC
(301) 337-7268
hello@thoriumdc.com
5.0 ยท Trusted by DC businesses

Framework-Native, Not Template-Driven

Our assessors are trained practitioners who work from primary NIST source documents โ€” not commercial tools that auto-generate reports without human judgment.

Findings That Are Actually Actionable

Every gap finding includes a specific remediation recommendation, effort estimate, and a risk-reduction score. You leave with a prioritized roadmap, not just a list of problems.

Federal & Regulated Sector Experience

Deep experience with DoD contractors, civilian agencies, healthcare organizations, and financial firms โ€” where NIST compliance is mandatory, not aspirational.

Independent & Objective

We don't sell the tools we recommend. Our assessments are vendor-neutral so findings reflect your actual risk, not a path to a product sale.

Audit-Ready Documentation

Every assessment produces evidence packages, control narratives, and artifacts formatted to satisfy C3PAO assessors, FedRAMP 3PAOs, and SOC 2 auditors โ€” not just internal stakeholders.

Clear Communication at Every Level

We translate NIST control language into business risk. Board-level summary decks, CISO-level technical findings, and engineering-level remediation tickets โ€” all from one engagement.

Proven Results for DC Clients

Numbers that reflect real business impact โ€” not vanity metrics.

100%
First-Attempt Audit Pass Rate
Every client we've prepared for CMMC, SOC 2, ISO 27001, or FedRAMP authorization has passed on the first attempt.
2โ€“4 wks
Assessment Turnaround
From kickoff to final report โ€” including executive summary, technical findings, and prioritized remediation roadmap.
10K+
Security Events Neutralized
Across clients who moved to ongoing managed monitoring after their initial NIST assessment.
50+
NIST Assessments Completed
Across federal contractors, healthcare organizations, financial firms, and regulated DC businesses since 2018.

How We Work

A transparent, milestone-driven engagement from first call to launch.

1

Scope & Kickoff

We define the assessment boundary โ€” which systems, data types, and organizational units are in scope. We align on the specific NIST framework(s) being assessed, collect existing documentation (SSPs, policies, network diagrams), and schedule stakeholder interviews. No surprises mid-engagement.

2

Evidence Collection & Testing

Our assessors conduct structured interviews with system owners, administrators, and leadership; review technical artifacts and policy documentation; and perform hands-on technical testing (configuration review, vulnerability scanning, log analysis). Every finding is tied to specific evidence.

3

Gap Analysis & Risk Scoring

We map findings to specific NIST controls or CSF subcategories, assign maturity scores or control determinations, and calculate risk using likelihood/impact scoring per NIST SP 800-30. Gaps are categorized by severity and sequenced for remediation based on risk reduction per dollar spent.

4

Report, Roadmap & Briefing

Final deliverables include an executive summary (board-ready), full technical findings report, current-state and target-state profiles, prioritized POA&M, and a remediation roadmap with timelines and effort estimates. We present findings directly to your leadership and answer every question.

Frequently Asked Questions

Common questions from DC businesses considering NIST CSF 2.0 Assessment.

Know Your Real Risk. Fix What Matters.

Schedule a free 30-minute scoping call. We'll tell you exactly which NIST assessment applies to your situation, what the engagement looks like, and what it costs โ€” before you commit to anything.

Based at 1717 N Street NW, Washington, DC ยท hello@thoriumdc.com ยท (301) 337-7268