CMMC and NIST 800-171 readiness for defense contractors.
ControlSolid helps defense contractors, subcontractors, and technology providers understand applicable security requirements, define the FCI and CUI environment, identify gaps, organize evidence, and prioritize remediation before self-assessments or independent assessments.
Common reasons teams come to us
- A prime contractor is asking about NIST SP 800-171 or CMMC posture during due diligence.
- A new contract flows down protection requirements for FCI or CUI.
- An SSP and POA&M exist but have not been reviewed against current guidance.
- The CUI environment has grown organically and needs a defensible scope definition.
- An independent assessment is on the horizon and the team wants to prepare properly.
- A previous self-assessment score needs to be revisited with fresh evidence.
- Defense contractors and subcontractors
- Small and midsize organizations entering the defense supply chain
- SaaS, cloud, and technology providers supporting defense contractors
- Teams handling or preparing to handle FCI or CUI
- Organizations preparing for NIST SP 800-171 or applicable CMMC requirements
- Applicability and scoping workshop
- FCI and CUI data-flow review
- Security boundary and asset review
- CMMC Level 1 or Level 2 readiness gap assessment, where applicable
- NIST SP 800-171 readiness assessment
- SSP and evidence review
- Prioritized remediation roadmap
- Executive summary
- Independent C3PAO coordination or referral when required
What readiness covers
Applicability & scoping
Understanding contract flow-down, information types (FCI, CUI), and the systems that touch them.
NIST SP 800-171 gap assessment
Control-by-control review with evidence expectations and remediation guidance.
CMMC level readiness
Level 1 or Level 2 readiness review where applicable, aligned to current official guidance.
SSP & evidence review
System Security Plan review, POA&M support, and evidence organization for an assessor handoff.
Remediation planning
Prioritized roadmap that balances risk, contractual pressure, and engineering capacity.
Assessor handoff
Clean handoff to a self-assessment team or an independent C3PAO while preserving assessor independence.
- A defensible view of scope, FCI, and CUI in your environment
- Clear picture of gaps against applicable requirements before an independent assessment
- Evidence organized the way an assessor will ask for it
- Prioritized remediation that respects your engineering capacity
- Defined assessment scope
- Gap register mapped to applicable requirements
- Evidence-readiness inventory
- Prioritized findings
- Remediation roadmap
- Executive summary
- Assessor-handoff package where appropriate
Four steps from scope to action
- 01
Define the scope
Confirm contract obligations and define the FCI and CUI assessment boundary.
- 02
Assess the environment
Review the environment and evidence against applicable NIST SP 800-171 and CMMC requirements.
- 03
Prioritize the findings
Rank gaps by security risk, contractual pressure, and remediation effort.
- 04
Deliver the action plan
Provide the remediation, SSP, POA&M, evidence, and assessor-handoff roadmap.
Questions we hear most
Explore other ControlSolid services
- FedRAMP readiness assessment →System boundary, cloud architecture, NIST SP 800-53 control gaps, and evidence planning for cloud services supporting federal agencies.
- Cybersecurity readiness & gap assessment →Broader readiness across SOC 2, ISO 27001, NIST CSF, and CIS alongside 800-171 work.
- Application & cloud security reviews →AWS, Azure, and GCP configuration and architecture review for CUI-bearing systems.