Published price bands · verified mid-2026
How much does a C3PAO assessment cost?
C3PAO assessment fees for CMMC Level 2 run roughly $30,000–75,000 for a small contractor with a well-scoped CUI environment, $75,000–150,000 for mid-sized organizations, and $150,000–300,000+ for large or multi-site environments. These are the assessor’s fees only — readiness, remediation, and documentation are separate. Published industry ranges, mid-2026; the fee scales with scope.
C3PAO fee bands by organization size
There is no published fee schedule — the assessment is a negotiated engagement priced on scope. These are the ranges the market publishes as of mid-2026. What moves you within a band, or between them, is the size of your CUI assessment boundary, not your headcount alone: a 200-person firm that confines CUI to a small enclave can land in the small-org band.
| Organization | Published fee band | What drives it |
|---|---|---|
| Small · well-scoped CUI enclave (< 50 employees) | $30,000–75,000 | A single, cleanly bounded CUI environment with few systems in scope. |
| Mid-sized (roughly 50–250 employees) | $75,000–150,000 | More systems, users, and locations in the assessment boundary; more evidence to sample. |
| Large / multi-site (250+ employees) | $150,000–300,000+ | Multiple sites, complex networks, or a broad CUI footprint that was never scoped down. |
Published industry ranges, mid-2026 — ranges, not quotes. Your scope sets your number.
What the fee includes — and what it doesn’t
The C3PAO fee buys the assessment: planning and scoping, evidence review, interviews, control testing against the 110 NIST SP 800-171 requirements, and the final assessment report. In the proposal, confirm whether travel, a pre-assessment/readiness review, the POA&M closeout assessment, and any re-tests are included or billed separately — that is where two quotes for the "same" assessment diverge.
The fee does not buy getting ready. Your gap assessment, remediation (buying and configuring tools, fixing controls), and the SSP and POA&M documentation are separate readiness costs — self-serve, or $14,000–40,000 for consultant-drafted documentation on published June 2026 pricing. No readiness vendor’s price includes the assessment, and no assessor’s price includes your remediation. See the full breakdown in the CMMC Level 2 cost guide.
How to reduce your C3PAO assessment cost
You control the fee mostly through scope and preparation. Five levers, in order of impact:
- 1
Scope a small CUI enclave
The single biggest lever. CMMC certifies systems, not companies (DoD PMO, May 2026), so move CUI work into a small, logically separated enclave and keep the rest of your network out of the assessment boundary. A smaller boundary means fewer systems and users to assess — and a smaller fee.
- 2
Document the boundary cleanly before the assessor arrives
Assessor time spent deciphering a vague system boundary or an incomplete SSP is billable time. A current, accurate System Security Plan (3.12.4) and a clear network diagram shorten the assessment and reduce the risk of findings that force a re-visit.
- 3
Know your SPRS score before you book
Do not pay an assessor to discover gaps you could have found for free. Run a gap assessment first, close the must-fix items, and walk in with a known score. The free Muster Score computes your number and separates POA&M-eligible gaps from must-fix ones.
- 4
Get in the queue early
Waitlists run 6–9 months and are lengthening as Phase 2 (November 10, 2026) approaches. Scheduling is part of the cost: a rushed engagement leaves no room to remediate findings before your award window.
- 5
Compare more than one C3PAO
Fees vary by assessor, scope, and travel. Shortlist several authorized C3PAOs on the Cyber AB Marketplace, ask each for a scoped proposal, and compare what is included (travel, re-tests, closeout) — not just the headline number.
How many C3PAOs are there?
Just over 100. 103 organizations were authorized as Certified Third-Party Assessment Organizations (C3PAOs) as of the April 2026 Cyber AB town hall — to assess the roughly 76,600–80,000 contractors obligated for Level 2 under the 32 CFR 170 final rule. The live count and each assessor’s authorization status are published on the Cyber AB Marketplace. That supply-demand gap is why waitlists sit at 6–9 months and are expected to lengthen — GAO (March 2026) flagged reliance on private-sector assessor capacity against anticipated demand. Book early.
Straight answers on C3PAO cost
How much does a C3PAO assessment cost?
Published industry ranges as of mid-2026 run roughly $30,000–75,000 for a small contractor with a well-scoped CUI environment, $75,000–150,000 for mid-sized organizations, and $150,000–300,000+ for large or multi-site environments. These are the assessor’s fees only, and they scale with the scope of your CUI boundary, your organization size, and the assessor. Readiness, remediation, and documentation are separate costs.
What is included in a C3PAO assessment fee?
The fee covers the C3PAO’s work to assess your environment against the 110 NIST SP 800-171 requirements: planning and scoping, evidence review, interviews, testing, and the final assessment report. Confirm in the proposal whether travel, a readiness/pre-assessment review, POA&M closeout assessment, and any re-tests are included or billed separately — that is where quotes diverge.
What does the C3PAO fee NOT include?
Getting ready. The gap assessment, remediation (buying and configuring tools, fixing controls), and drafting the SSP and POA&M are separate readiness costs — whether you do them self-serve or hire a consultant ($14,000–40,000 for documentation, per published June 2026 pricing). No readiness vendor’s price includes the assessment, and no assessor’s price includes your remediation.
Can I negotiate C3PAO pricing?
You can shape it more than negotiate it. The fee is driven by assessment scope, so the effective lever is shrinking the boundary: a smaller, cleanly documented CUI enclave means fewer systems to assess. Getting competing scoped proposals from several authorized C3PAOs on the Cyber AB Marketplace is the practical way to compare and control the price.
How long does a C3PAO assessment take?
The on-site assessment itself is typically a few days to a couple of weeks depending on scope, but the binding constraint is scheduling: C3PAO waitlists run about 6–9 months as of mid-2026, and demand is expected to climb sharply as the November 10, 2026 Phase 2 date approaches. Budget the queue as part of your timeline.
How many C3PAOs are there?
Just over 100 — 103 organizations were authorized as Certified Third-Party Assessment Organizations as of the April 2026 Cyber AB town hall — to assess roughly 76,600–80,000 contractors obligated for Level 2. The live count and each assessor’s status are on the Cyber AB Marketplace (cyberab.org). Demand far outpaces supply, which is what keeps waitlists at 6–9 months.
Sources: published C3PAO and consultancy pricing (mid-2026, ranges not quotes); C3PAO count and assessor-capacity signals from the Cyber AB town hall (April 2026) and GAO (March 2026) via cmmc.com; 32 CFR 170 (obligated-population estimate, per-solicitation Phase 2 rollout); DoD PMO scoping guidance, May 2026 ("CMMC certifies systems, not companies"). This is compliance information, not legal advice, and Muster does not perform or sell the C3PAO assessment. For contract questions, consult qualified counsel.
Related guides
NIST 800-171 SSP template
What an SSP must contain per 3.12.4, what assessors flag first, and a free blank template (Markdown or Word) — no email gate.
POA&M template (NIST 800-171)
The 32 CFR 170.21 eligibility rules — 88-point minimum, the never-eligible six, the 180-day clock — plus a worked example and a free blank template.
CMMC Level 2 cost
Real price bands by path — self-serve software, consultant-led, enclave route — with the C3PAO assessment fee separated out honestly.
CMMC Level 1 vs Level 2
The decision rule (FCI → Level 1, CUI → Level 2), a side-by-side comparison table, and a 2-minute quiz that tells you which one you need.
Tools: SPRS score calculator · scoring methodology · CMMC Phase 2 deadline
Know your score before you book an assessor.
The free Muster Score computes your SPRS number with the exact DoD methodology and flags the must-fix gaps to close first — so you don’t pay a C3PAO to find what you could have fixed for free.
Get your free Muster ScoreThe free score is live now. Join the waitlist for early access to the done-for-you Level 2 Readiness Sprint and founding-cohort pricing.