Best CMMC 2.0 Assessors: 8 Firms Compared
CMMC Level 2 certification assessments must be performed by a C3PAO authorized by the Cyber AB. The 8 firms below have CMMC work on record in our directory — confirm current C3PAO authorization on the Cyber AB Marketplace before engaging.
Top 8 CMMC 2.0 audit firms, ranked
Select up to three firms below to compare them side by side.
1. A-LIGN
Unverified · public records- – Price band: not yet verified
- – Typical timeline: not yet verified
- ✓ GRC integrations on record: Drata, Secureframe, Vanta
- ✓ CPA firm (attestation-capable)
- – No verified client reviews yet
2. Schellman
Unverified · public records- – Price band: not yet verified
- – Typical timeline: not yet verified
- ✓ GRC integrations on record: Drata, Secureframe, Vanta
- ✓ CPA firm (attestation-capable)
- – No verified client reviews yet
3. Coalfire
Unverified · public records- – Price band: not yet verified
- – Typical timeline: not yet verified
- – GRC integrations: not yet verified
- ✓ CPA firm (attestation-capable)
- – No verified client reviews yet
4. Fortreum
Unverified · public records- – Price band: not yet verified
- – Typical timeline: not yet verified
- – GRC integrations: not yet verified
- – No verified client reviews yet
5. Kratos Defense
Unverified · public records- – Price band: not yet verified
- – Typical timeline: not yet verified
- – GRC integrations: not yet verified
- – No verified client reviews yet
6. Redspin
Unverified · public records- – Price band: not yet verified
- – Typical timeline: not yet verified
- – GRC integrations: not yet verified
- – No verified client reviews yet
7. Cask Government Services
Unverified · public records- – Price band: not yet verified
- – Typical timeline: not yet verified
- – GRC integrations: not yet verified
- – No verified client reviews yet
8. DEFCERT
Unverified · public records- – Price band: not yet verified
- – Typical timeline: not yet verified
- – GRC integrations: not yet verified
- – No verified client reviews yet
Compare at a glance
| # | Firm | Price band | Timeline | GRC platforms | Verified reviews | Status |
|---|---|---|---|---|---|---|
| 1 | A-LIGN | Not yet verified | Not yet verified | Drata, Secureframe, Vanta | No verified reviews yet | Unverified |
| 2 | Schellman | Not yet verified | Not yet verified | Drata, Secureframe, Vanta | No verified reviews yet | Unverified |
| 3 | Coalfire | Not yet verified | Not yet verified | Not yet verified | No verified reviews yet | Unverified |
| 4 | Fortreum | Not yet verified | Not yet verified | Not yet verified | No verified reviews yet | Unverified |
| 5 | Kratos Defense | Not yet verified | Not yet verified | Not yet verified | No verified reviews yet | Unverified |
| 6 | Redspin | Not yet verified | Not yet verified | Not yet verified | No verified reviews yet | Unverified |
| 7 | Cask Government Services | Not yet verified | Not yet verified | Not yet verified | No verified reviews yet | Unverified |
| 8 | DEFCERT | Not yet verified | Not yet verified | Not yet verified | No verified reviews yet | Unverified |
What to check before hiring a CMMC assessor
Cyber AB authorization
Level 2 certification assessments require an authorized C3PAO. Check the Cyber AB Marketplace for current status.
Level 1 vs. Level 2 scope
Level 1 is an annual self-assessment; Level 2 usually requires a triennial C3PAO assessment. Make sure the firm matches your contract requirements.
NIST 800-171 depth
CMMC Level 2 is built on NIST SP 800-171. Ask how the firm handles POA&Ms, enclave scoping, and SSP review.
Defense supply-chain experience
Assessors who know DFARS 252.204-7012 and CUI flow-downs will scope your environment far more efficiently.
Frequently asked questions
Who can perform a CMMC Level 2 assessment?
Only a C3PAO (CMMC Third-Party Assessment Organization) authorized by the Cyber AB can perform Level 2 certification assessments. Level 1 and some Level 2 contracts allow self-assessment.
Is CMMC the same as NIST 800-171?
CMMC Level 2 is the DoD's certification mechanism for NIST SP 800-171 compliance. The controls are the same; CMMC adds the formal assessment and certification layer.
How were these CMMC firms ranked?
By verification status, then profile completeness, then verified client reviews. Always confirm current C3PAO authorization on the Cyber AB Marketplace — see our methodology page for what we verify.
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