CMMC Audit and Readiness Support
Compliance that holds up when it counts.
Understanding what you’re protecting, where it lives, and how it moves takes more than a checklist. Firestone provides practitioner-led CMMC readiness support that starts with your actual environment, so your compliance program stays defensible when tested.
What we know
Most companies aren't starting from zero. They're starting from the wrong assumptions.
CMMC Level 2 covers 110 practices and 320 assessment objectives derived from NIST SP 800-171. The gap is rarely awareness. It is accuracy. Organizations routinely underestimate their assessment boundary. CUI can live in places teams forget to map: servers, shared printers, mobile devices, paper records, external providers, and everyday workflows. Scoping done correctly changes the entire picture. We help you see it clearly before an assessor does.
Process Before Paperwork
We look at how your organization actually operates, not just what your policies say. Real gaps get surfaced before remediation gets planned.
Practitioner-Led
Our engagements are led by CMMC-credentialed practitioners who understand what assessors look for and what evidence holds up under scrutiny.
Scoped to Your Path
Whether you’re pursuing SPRS self-assessment or C3PAO certification, readiness is built around where you’re actually headed.
Start here
Not every organization starts in the same place.
Starting with the right one builds a remediation path that is sequenced to your timeline, scoped to your environment, and designed to close the gaps that actually matter before your formal assessment.
C3PAO Partners
Credentialed assessor capacity for assessment teams.
C3PAOs building assessment teams can engage Firestone to provide qualified assessor support. Our principals hold active CMMC certifications and bring practitioner-level depth to your engagements - a peer partnership rather than a staffing arrangement.
If you are a C3PAO preparing for an assessment engagement and need credentialed capacity, our team is agile, scalable, and prepared to mobilize.
How we support
Meet you where you are. Get you where you need to be.
CMMC compliance rarely follows the same path twice. Most engagements begin with a gap assessment because you cannot plan around a target you have not measured. From there, the work may shift toward remediation, policy and documentation, technical control implementation, or readiness validation, depending on what the assessment surfaces. Everything is built around what we find, not what we assume.
Know where you stand
Gap assessment and CUI scoping
Before you can build a plan, you need an honest picture of where things actually stand. We evaluate your environment against all 110 NIST 800-171 practices and define your CUI boundary so the scope of your compliance effort is clear. If it's not documented, it didn't happen. We help you figure that out before an assessor does.
- Structured gap analysis against all 110 practices
- CUI flow identification and boundary definition
- Asset categorization across all required categories
- Prioritized findings with remediation sequencing
- SPRS score estimate based on current posture
Build your case
SSP, POA&M and policy development
The System Security Plan is the backbone of your compliance program. We help build or strengthen your SSP so it accurately reflects your environment, structure your POA&M for open items, and develop the policies and procedures assessors expect to find. Not templates dropped in from somewhere else, but documentation that reflects how your organization actually works.
- SSP development or review and refinement
- POA&M structure and open item tracking
- Policy and procedure development
- Control narrative development and evidence organization
- External Service Provider and shared responsibility documentation
Prepare for assessment
Mock assessment and readiness review
A mock assessment is a risk reduction strategy, not just a practice run. We simulate the actual CMMC assessment process, reviewing controls, examining evidence, and walking through the same questions a formal assessor will ask. The goal is to surface what you don’t know you don’t know, while there’s still time to address it.
- Internal readiness review against CMMC assessment objectives
- Mock assessment aligned to the CMMC Assessment Process (CAP)
- Evidence package review and gap closure
- Team preparation for assessment interviews
- SPRS score review before submission
Sustain it
Ongoing compliance support
Certification is a point-in-time event. What comes after is where many organizations lose ground. Per DFARS 252.204-7021, companies are required to submit annual affirmations through SPRS confirming continued compliance with all 110 security requirements. That’s an ongoing obligation, not a formality. We help you stay ready for it.
- Annual compliance reviews in support of SPRS affirmation requirements
- Periodic compliance health checks
- POA&M progress and closure reviews
- Support for scope changes and new CUI flows
- Triennial recertification preparation
Who we support
Built for defense contractors handling CUI.
We work with contractors across the readiness spectrum, from organizations still trying to understand what CMMC requires to those weeks out from a formal assessment and looking for a final set of qualified eyes. There’s no minimum maturity to start. The work meets you where you are.
Contractors new to CMMC
You’ve heard CMMC is coming and aren’t sure where to start. We scope the problem, clarify what you’re facing, and build a realistic path forward.
Organizations pursuing self-assessment
You need to submit an accurate SPRS score and build the documentation to back it up. We help you assess honestly and document defensibly.
Companies preparing for C3PAO certification
You have a third-party assessment on the horizon. We help you validate readiness, close gaps, and walk in prepared rather than surprised.
Post-assessment organizations
You’ve been certified. Now the work is keeping it current. We provide periodic review support to help maintain your compliance posture between assessments.
Not sure where to start?
A brief conversation is usually enough to identify where the gaps are, what matters first, and what kind of support makes sense. No pitch, no pressure.