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CMMC guide

CMMC consulting: what CMMC consultants do and how to choose one

A CMMC consultant gets you ready; an assessor decides whether you are. Here is what the consulting work covers, how it differs from a C3PAO, the engagement models on offer, and the questions that separate useful help from expensive advice.

ColdFeet Inc.Comply · Summary

Continuous compliance

Configuration checks on 62 monitored endpoints, last run 14 minutes ago

Total Active Violations
38
Total Passed Checks
3,090
Monitored Endpoints
62
SOC 2 Type II score
98.8%
ControlSOC 2 Type II requirementSeverityEndpoints failing
Ensure 'Minimum password length' is set to 14 or more charactersCIS Microsoft Windows 11 Enterprise BenchmarkCC6.1High9 of 62
Ensure BitLocker is enabled on the operating system driveCIS Microsoft Windows 11 Enterprise BenchmarkCC6.7Critical1 of 62
Ensure SSH root login is disabledCIS Ubuntu Linux 22.04 LTS BenchmarkCC6.1High2 of 62
Ensure screen locks after 15 minutes of inactivityCIS Microsoft Windows 11 Enterprise BenchmarkCC6.1Medium14 of 62
Ensure audit logs are kept for at least 90 daysCIS Ubuntu Linux 22.04 LTS BenchmarkCC7.2Medium4 of 62
Ensure automatic OS updates are enabledCIS Apple macOS 14 Sonoma BenchmarkCC7.1Medium6 of 62
Ensure the firewall is enabledCIS Apple macOS 14 Sonoma BenchmarkCC6.6Low2 of 62
Sample data

What do CMMC consultants do?

  • Scoping: find where CUI enters, where it is stored and who touches it, and decide whether an enclave makes sense.
  • Gap assessment: test the 110 requirements and their 320 objectives, and score the result the way DoD does.
  • Documentation: the System Security Plan, the POA&M, the policies and procedures for each family.
  • Remediation support: multi-factor authentication, logging, FIPS-validated encryption, the move to GCC High or an enclave, either done by the consultant or guided for your IT provider.
  • The SPRS submission: a self-assessment you can defend. See how the SPRS score works.
  • Mock assessment: a rehearsal of the real one, against the same objectives, before a C3PAO arrives.

Consultants, C3PAOs and RPOs

Who does what in the CMMC ecosystem
RoleWhat they doCan they certify you?
CMMC consultantReadiness: scoping, gap assessment, SSP, remediationNo
Registered Provider Organization (RPO)A consulting firm listed in the Cyber AB marketplaceNo
C3PAOCertified Third-Party Assessment Organization: runs Level 2 certification assessmentsYes, Level 2
DCMA DIBCACDoD’s own assessorsYes, Level 3

Listing in the Cyber AB marketplace is not required to give CMMC advice, and it does not let a firm assess or certify anyone. What matters more is whether the people doing the work have run NIST SP 800-171 assessments before and can show you a sample SSP.

How CMMC consulting is sold

  • Hourly advisory: flexible, hard to budget, and the documents are often left to you.
  • Fixed-scope readiness: a defined set of deliverables, the gap assessment, SSP, POA&M and score, for a fee agreed after scoping.
  • Cohort programs: several suppliers work through the same structured modules at once, with templates and workshops, which keeps the cost down for small companies.
  • Ongoing compliance: the controls are watched and the evidence kept current between assessments, so the yearly affirmation is true when a senior official signs it.

What drives the price is the scope of the CUI, where email and files live, and how much is already written down. The cost lines are on what drives the cost of CMMC.

Questions to ask a CMMC consultant

  1. Who will do the work, and how many NIST SP 800-171 assessments have they completed?
  2. Will we receive an SSP and POA&M we own, and can we see a redacted sample?
  3. Do you score against all 320 objectives in NIST SP 800-171A, or only the 110 headings?
  4. How do you decide between an enclave, GCC High and our current environment?
  5. What is fixed in the fee, and what is billed separately?
  6. Who does the technical fixes: you, our IT provider or us?
  7. What happens after the assessment: who keeps the evidence current?

Red flags that cost months

  • A guarantee of certification. No consultant can promise the assessor’s result.
  • “CMMC certified” as a claim about the consulting firm. Contractors reach a CMMC status through an assessment; a consulting firm is not certified to sell advice.
  • A price before anyone has asked where your CUI is. Scope sets the work.
  • Templates with your name pasted in. An SSP that does not describe your systems fails the first interview.
  • GCC High for everyone. It suits many suppliers, but an enclave or a smaller boundary is sometimes cheaper.
  • Consulting and assessing from the same firm. The conflict-of-interest rules forbid it.

How AccuSights helps

The CMMC Level 2 Readiness Accelerator is an eight-week cohort program for small defense suppliers: scope and CUI discovery, identity and access, systems and security controls, data protection, policies, gap analysis, the SSP and POA&M workshops, and a final readiness review. For companies that want the work done for them, the CMMC packages are fixed fees, published on our pricing page.

AccuSights is not a C3PAO, is not affiliated with the Cyber AB or the Department of Defense, and does not certify or guarantee certification. We prepare you for your CMMC assessment; we do not conduct it. Third-party assessments are subject to DoD and Cyber AB rules as published, which may change.

With AccuSights: you get one team for scoping, the SSP, the POA&M and the SPRS score, a fixed fee agreed in writing before the work starts, and monitoring afterwards so the evidence stays current.

Quick questions

What does a CMMC consultant do?
Readiness work: scoping where CUI lives, assessing the gaps against the 110 requirements of NIST SP 800-171, writing the SSP and POA&M, supporting the fixes, preparing the SPRS score and running a mock assessment.
Do we need a CMMC consultant?
Not by rule. Some suppliers with a strong IT team prepare on their own using the DoD guides. A consultant mainly saves time on scoping and documentation, and catches the gaps a first self-assessment tends to miss.
Can a CMMC consultant also be our assessor?
No. A C3PAO cannot assess a company it has helped prepare. Keep the readiness work and the assessment with different firms.
What is an RPO?
A Registered Provider Organization: a consulting firm registered with the Cyber AB and listed in its marketplace. Registration is not required to give CMMC advice and does not allow the firm to assess or certify anyone.
How long does CMMC consulting take?
The readiness work, scoping, gap assessment, SSP and POA&M, often fits in about two months for a small supplier. Remediation depends on what the gap assessment finds and can take several months more.

Sources

Rules on this page were checked against these primary sources in October 2026.

  1. 32 CFR Part 170: the CMMC Program rule
  2. The Cyber AB: CMMC ecosystem and marketplace
  3. DoD CIO: CMMC resources and documentation
  4. NIST SP 800-171 Rev 2
  5. NIST SP 800-171A: assessing the requirements
  6. DFARS Class Deviation 2026-O0025 Rev 3

Written by the AccuSights compliance team and updated October 2026. Figures are quoted from the sources named here and were current when checked. This page is general information, not legal advice. AccuSights is not a C3PAO, is not affiliated with the Cyber AB or the Department of Defense, and does not certify or guarantee certification. We prepare you for your CMMC assessment; we do not conduct it. Third-party assessments are subject to DoD and Cyber AB rules as published, which may change.

Next step

Looking for CMMC consultants who show the work?

Thirty minutes with a compliance engineer: your scope, the right environment, and a fixed fee in writing for the readiness work.

The regulator has the final say. We help interpret, scope and get you ready; we do not certify.

3-min test