Find an Authorized C3PAO

The 2026 Cyber AB Marketplace Verification Guide

By The Defense Compliance Report Editorial Team — an independent trade publication on CMMC 2.0 and DIB compliance.

Published: May 27, 2026 · Last reviewed: May 27, 2026

Editorial research — not formally reviewed by a named CMMC Subject Matter Advisor. Verify scope and applicability with a Registered Practitioner before acting. This page is educational and is not legal, contractual, or compliance advice. Provider-matching forms on this site may generate lead-routing compensation.

To find an authorized C3PAO, open the Cyber AB Marketplace at cyberab.org/Catalog, filter by Assessor, and confirm the firm’s status reads Authorized C3PAO or Accredited C3PAO— not “Candidate C3PAO,” not “RPO,” not blank. Only Authorized or Accredited C3PAOs can perform a CMMC Level 2 certification assessment under 32 CFR Part 170. The Government Accountability Office reported approximately 92 Authorized C3PAOs and 633 Certified CMMC Assessors (CCAs) in the ecosystem as of December 2025; subsequent Cyber AB Town Hall data cited in published ecosystem analyses placed those figures at approximately 103 Authorized C3PAOs and 759 CCAs as of March 2026.

The catch most contractors miss: official status is necessary but not sufficient. The same firm that helped you get ready may be barred from assessing you. The “cheap” quote may be missing scope. The “Candidate” listing isn’t authorization. And Phase 2 — when the Department of Defense (DoD) intends to include Level 2 (C3PAO) requirements in applicable new solicitations and contracts as a condition of award (with discretion to delay that inclusion to a contract option period) — begins November 10, 2026. That’s the part of the answer the Marketplace itself doesn’t tell you.

Here’s the full verification workflow we’d run, the gut check before paying for an assessment, and what to ask before signing any C3PAO engagement letter.

Quick decision table: do you need an Authorized C3PAO right now?

How to find an authorized C3PAO: the 4-step Cyber AB Marketplace workflow

To find an authorized C3PAO, use the Cyber AB Marketplace as the official starting point, then verify the exact status, legal entity name, and last-checked date before contacting the provider.A third-party “C3PAO list” can help with discovery, but only the Cyber AB Marketplace status is the status the DoD relies on. Each of the four steps below takes under a minute.

Step 1 — Open the Cyber AB Marketplace

Go directly to cyberab.org/Catalog. The Cyber AB — formerly the CMMC Accreditation Body (CMMC-AB) — is the non-governmental organization that operates the CMMC ecosystem’s assessor authorization process under a no-cost contract with the DoD’s Washington Headquarters Services. It is the only entity authorized to designate C3PAOs.

The Marketplace URL above pre-filters the catalog to entities listed as Assessors. If you start from cyberab.organd click “Marketplace,” apply the Assessor filter manually.

Step 2 — Filter by Assessor and search by legal entity name

Search using the firm’s legal entity name, not the marketing brand. Many C3PAOs operate under parent-company, subsidiary, or DBA arrangements where the assessing entity is named differently from the sales brand. We’ve seen engagement letters arrive under a name that doesn’t appear in the Marketplace — that’s a contracting problem, not a paperwork one.

If you can’t find them by the name you were given, ask the firm for the exact legal entity listed in the Marketplace and the URL of their listing. A firm that hesitates here is a firm we’d disqualify.

Step 3 — Confirm the status reads “Authorized C3PAO” or “Accredited C3PAO”

This is the decisive check. The Marketplace shows several status labels. Only two of them confer authority to perform a CMMC Level 2 certification assessment:

• Authorized C3PAO — Can perform Level 2 certification assessments.
• Accredited C3PAO — Can perform Level 2 certification assessments; has additionally achieved ISO/IEC 17020-based accreditation through the Cyber AB process.
• Candidate C3PAO — Cannot perform Level 2 certification assessments. In application/pipeline.
• RPO / RP / CCP / CCA / LTP / LPP — Different ecosystem roles, none of which by themselves authorize the organization to issue a Level 2 certificate.

Per the Cyber AB’s published FAQ, only Authorized C3PAOs (and subsequently Accredited C3PAOs) can conduct CMMC assessments for certification. Per Cyber AB Requirement R2002, every Authorized C3PAO must attain ISO/IEC 17020-based accreditation within 27 months of authorization and maintain it thereafter.

Step 4 — Save a verification record before any conversation

Three things move during a CMMC procurement: the firm’s status, the firm’s claims, and your contract requirements. The only one you can pin down is the status, as of a specific date. Save it.

That five-line evidence log is what separates a thoughtful CMMC procurement from one that runs into a finding two years from now.

Authorized vs Accredited vs Candidate — the status that actually counts

Three statuses appear most often in the Cyber AB Marketplace, and only two of them mean the organization can issue a valid CMMC Level 2 certificate.Treating “Candidate C3PAO” as equivalent to “Authorized C3PAO” is one of the most common — and most expensive — procurement mistakes we see contractors make.

Why this matters operationally.A Level 2 certification issued by anyone other than an Authorized or Accredited C3PAO has no standing in the CMMC ecosystem and will not satisfy a DFARS 252.204-7021 contract requirement. Per DFARS 252.204-7025, an offeror is not eligible for award without the required current CMMC status and affirmation posted in the Supplier Performance Risk System (SPRS) for each applicable contractor information system. That’s not a theoretical risk — that’s the clause text.

Do you actually need a C3PAO right now? (The honest gut check)

Most contractors searching “find an authorized C3PAO” assume they need one. Some don’t. Some need readiness work first, and engaging a C3PAO before the readiness is real almost always ends with paid findings — gaps the assessor surfaces that a readiness review would have shown for a fraction of the cost. Three questions decide whether an Authorized C3PAO is your right next move.

This is the section where we’re going to lose some readers — and that’s the point.

The damaging admission

An Authorized C3PAO is not always the right first call. We say this even though provider-matching forms are how we monetize, because it’s true: if your System Security Plan (SSP), scope, evidence, and control implementation aren’t ready, the C3PAO assessor will surface those gaps as findings. You can spend assessment money before you learn what a readiness review would have shown you earlier — and DoD’s own cost model in the 32 CFR Part 170 Final Rule puts Level 2 (C3PAO) certification and affirmation squarely in six-figure territory for both small and non-small entities. An assessment doesn’t fix scope, SSP, or evidence problems. It documents them.

Worse: if the same firm that did your readiness work shows up to do your assessment, the Cyber AB independence rule (R2002) can disqualify them outright. Engaging the wrong provider category at the wrong time is the most common — and most expensive — pattern we see in the DIB right now.

Three questions before you book a C3PAO

1. What does your contract or solicitation actually require?

The contract clause sets the level and the assessment type. Per DFARS 252.204-7025 (the solicitation provision, effective November 10, 2025), the contracting officer inserts the required CMMC status into the solicitation. CMMC defines distinct statuses including Level 1 (Self), Level 2 (Self), Level 2 (C3PAO), and Level 3 (DIBCAC). They are not interchangeable. If your contract says Level 2 (Self), a C3PAO assessment is not the path — a self-assessment with senior-official affirmation posted in SPRS is.

If your contract isn’t clear, ask the contracting officer in writing before you spend any money.

2. Is your readiness actually ready?

NIST SP 800-171 Revision 2 — the 110 security requirements organized into 14 control families that constitute the substantive Level 2 control set — requires a System Security Plan (SSP) that documents the system boundary, the operational environment, and how each requirement is implemented. Before booking a C3PAO, run this gut check:

• Is your SSP complete and current for the full assessment scope?
• Have all 110 requirements been implemented and evidenced, or have you identified which are eligible for a Plan of Action & Milestones (POA&M)?
• Is your evidence package organized and accessible?
• Has someone other than the implementer run a gap closure review?
• Is your basic NIST SP 800-171 self-assessment score current in SPRS?

If three or more of those are “no,” readiness comes first. Engaging an assessor before this work is done is buying findings.

3. Are there independence conflicts you’ll have to clear?

Per Cyber AB Requirement R2002, the C3PAO shall not conduct a Level 2 certification assessment of an Organization Seeking Certification (OSC) within three years of providing consulting, implementation, or product sales/services to that same OSC. R2002 also requires the C3PAO to track related engagements, identify and mitigate conflicts of interest in assessment-team composition, and not proceed when a conflict cannot be sufficiently mitigated. The CMMC Assessment Process (CAP) reinforces these conflict-of-interest controls and explicitly prohibits any guarantee or contingent incentive tied to a certification outcome.

If your readiness provider is now pitching itself as your assessor, you have a R2002 problem to clear before the engagement can even start. The fix is usually two providers, not one.

Who should keep reading vs who should route elsewhere

Current Cyber AB C3PAO authorization requirements — and the DoD OIG gaps to ask about

Every C3PAO must meet the Cyber AB’s current initial authorization requirements (codified in Cyber AB Requirement R2001) before it can be listed as an Authorized C3PAO. In January 2025, the DoD Office of Inspector General audited the C3PAO authorization process and published findings on specific gaps across reviewed firms — gaps a careful buyer can still ask about today. The Marketplace listing confirms a firm has been authorized. The diligence below confirms the firm is operationally solid.

Per Report No. DODIG-2025-056 (January 10, 2025), the DoD OIG reviewed 11 Authorized C3PAOs and evaluated them against the authorization requirements in effect at that time. The auditors found that Cyber AB officials had ensured 10 of the requirements were met for the firms reviewed, but identified gaps in specific areas across multiple assessors. The OIG made 10 recommendations to the DoD CIO, the CMMC Program Management Office (PMO), and DIBCAC for tightening the authorization quality assurance process.

The Cyber AB has since updated and republished its authorization requirements; the current version lives in Cyber AB R2001. The table below combines (a) categories from the current R2001 authorization framework and (b) the specific gaps the OIG identified during its review, alongside the diligence question a contractor can ask before signing.

The point for contractors evaluating an assessor: the Marketplace listing is necessary, but ask the diligence questions before signing.A firm that can’t tell you who their Lead CCA is, who their Quality Assurance individual is, or how those people are assigned to your assessment is a firm worth scrutinizing further.

Primary sources: Cyber AB Requirement R2001 (current C3PAO Initial Authorization Requirements); DODIG-2025-056, Audit of the DoD’s Process for Authorizing Third-Party Organizations to Perform CMMC 2.0 Assessments, Report No. DODIG-2025-056, January 10, 2025, available at dodig.mil.

How many Authorized C3PAOs exist — and what Phase 2 actually means for capacity

The GAO reported approximately 92 Authorized C3PAOs and 633 Certified CMMC Assessors (including 290 Lead CCAs) as of December 2025. Cyber AB Town Hall data cited in published ecosystem analyses placed the figures at approximately 103 Authorized C3PAOs and 759 CCAs as of March 2026. The DoD’s 32 CFR Part 170 cost analysis estimates roughly 76,000+ Defense Industrial Base contractors will require Level 2 (C3PAO) certification once the rollout is fully implemented. Phase 2 begins November 10, 2026.

The capacity snapshot

Source artifacts reviewed: GAO-26-107955 (March 2026 report covering ecosystem data through January 2026); Federal Register publications of the 32 CFR Part 170 Final Rule (October 15, 2024) and the DFARS final rule (September 10, 2025). Marketplace counts at March 2026 reflect published ecosystem analyses citing Cyber AB Town Hall data; the live Marketplace count can shift between Town Hall publications. We re-check the live Marketplace when new Cyber AB source artifacts become available.

The honest read on capacity

Two narratives circulate. The first says there aren’t enough assessors and contractors should panic-book. The second — which the underlying data supports more cleanly — is that the binding constraint right now is not C3PAO availability but DIB readiness. Cyber AB Town Hall data cited in published ecosystem analyses indicates that approximately 1,000 organizations have achieved Level 2 certification to date against an eligible population estimated in the tens of thousands. That’s primarily a readiness gap, not an assessor gap.

Both bottlenecks coexist. Which one binds for yourcontract depends on whether you’re ready, when your Phase 2-affected solicitation lands, and which C3PAO fits your environment. The right move isn’t to panic-book the first authorized firm with availability — it’s to be genuinely ready, then book the right assessor for your environment with enough lead time.

That said: Phase 2 is calendar-fixed at November 10, 2026. There is no manufactured scarcity here. Contractors whose contracts will require Level 2 (C3PAO) certification under Phase 2 should have a contracted C3PAO and a scheduled assessment date well before that requirement appears in a solicitation award. Industry guidance commonly suggests 8 to 16 weeks of lead time for a C3PAO engagement, scope-dependent — verify availability with quoted providers.

How to choose among Authorized C3PAOs (the Environment-Fit Decision Matrix)

The right fit depends on your CUI environment, your scope complexity, your industry, and your scheduling window. No single C3PAO is “best” for every contractor. The factors that actually predict a smooth assessment are environment experience and CCA team depth — not size, brand, or marketing claims.

This is the matrix we’d use to narrow a shortlist from the Marketplace to three vendors worth quoting.

Shortlist criteria — the eight-point gate

By the time you contact a C3PAO for a quote, every shortlisted firm should pass all eight:

1. Authorized C3PAO (or Accredited C3PAO) in the Cyber AB Marketplace — verified today.
2. No R2002 prior-services conflict (no consulting, implementation, product sales, or related services to your organization within the past three years).
3. Demonstrable experience in your CUI environment.
4. Named Lead CCA and Quality Assurance individual assigned to your assessment.
5. Documented methodology aligned to the CMMC Assessment Process (CAP).
6. ISO/IEC 17020 accreditation status disclosed (in process, achieved, or pursuing — material to long-term standing).
7. Scheduling availability within your target window.
8. Transparent scope-based pricing approach (not a flat rate independent of scope).

The Cyber AB independence rule (R2002) — and why your readiness consultant probably can’t be your assessor

Per Cyber AB Requirement R2002, a C3PAO shall not conduct a Level 2 certification assessment of an Organization Seeking Certification (OSC) within three years of providing consulting, implementation, or product sales/services to that same OSC. R2002 also requires the C3PAO to track related engagements, identify and mitigate conflicts of interest in assessment-team composition, and not proceed when a conflict cannot be sufficiently mitigated.The CMMC Assessment Process (CAP) reinforces these controls and bars the assessor from giving advice or implementation help during the certification assessment itself. A firm pitching “we’ll do your readiness and certify you in one engagement” is offering an arrangement that R2002 prohibits.

Why the rule exists

The whole point of third-party certification is independence. If the assessor designed your control environment, the assessor is grading their own work — and the resulting certificate has no meaningful independent value. R2002 exists to preserve the credibility of the Level 2 certificate itself.

What R2002 covers

The rule coversany of: gap analysis, SSP authoring, POA&M development, control design, control implementation, evidence package construction, product sales, MSP/MSSP services, or other consulting and implementation services provided to the same OSC. Any single qualifying service triggers the three-year bar.

The rule applies for three years. A readiness engagement that wrapped 12 months ago still disqualifies the same firm from assessing you today.

Related entities require documented review. Many firms operate dual-track structures — one legal entity registered as an RPO for readiness, a separate authorized legal entity for assessment. R2002 does not provide a simple safe harbor for these arrangements. The C3PAO must identify the relationship, document a conflict-of-interest review and mitigation plan, and confirm to itself that it can proceed under R2002. If the C3PAO cannot sufficiently mitigate the conflict, R2002 requires it not to proceed.

The decision tree

How to confirm the C3PAO’s COI review when a parent company has both

If you want to proceed with a firm whose parent operates both an RPO and a separate Authorized C3PAO, the diligence is straightforward:

1. Ask for the firm’s written R2002 conflict analysis for your specific engagement.
2. Separate engagement letters under separate legal entities. Not a single contract with two service lines.
3. No assessment team member who was on your readiness team. Verify by name.
4. No shared performance compensation that ties readiness team incentives to the assessment outcome.
5. Written confirmation from the C3PAO that it has determined it can proceed under R2002 for your engagement.

If any of those isn’t true, walk.

C3PAO red flags: eight patterns that disqualify a vendor

Eight recurring patterns signal a C3PAO engagement is structurally weak. Each is grounds to disqualify or, at minimum, escalate. If you see two or more on a single vendor proposal, walk.

1. “We guarantee CMMC certification.” No legitimate C3PAO can guarantee a certification outcome. The CAP explicitly prohibits guarantees and any incentive contingent on assessment results. A guarantee implies either sales misrepresentation or willingness to compromise assessment independence.
2. Dual readiness + assessment in a single engagement. R2002 violation.
3. Cannot produce a Cyber AB Marketplace listing URL on request.The Marketplace is public. A firm that won’t or can’t point you to its listing is either not authorized or not transparent — either is disqualifying.
4. Anomalous pricing without scoping basis.A flat-fee quote that doesn’t reference your scope (in-scope users, systems, sites, CUI flows) is either a foot-in-the-door pitch with expected change-orders later, or a sign the firm is under-scoping — which surfaces as a failed assessment.
5. No named Lead CCA or Quality Assurance individual on the proposed assessment team.R2001 requires C3PAOs to have at least three CCAs on staff or under contract, including one Lead CCA and another CCA serving as the Quality Assurance individual. The firm should be able to name both for your engagement and point you to each individual’s Cyber AB credential listing.
6. Misrepresenting Cyber AB affiliation.Phrases like “Cyber AB-certified” or “DoD-authorized” without the firm being listed in the Marketplace as Authorized C3PAO are misrepresentation. The Cyber AB does not authorize firms generically — it authorizes them specifically as C3PAOs.
7. No documented methodology aligned to the CAP.Every C3PAO operates an internal Quality Management System. The firm should be able to describe its methodology and how it aligns to the published CMMC Assessment Process (CAP). “We just follow the rule” is not an answer.
8. No clear position on what happens if their authorization changes mid-engagement.Status can change. If the Cyber AB suspends or revokes a C3PAO’s authorization during your engagement, the firm cannot complete the assessment. Your engagement letter should specify what happens to scheduling, fees, and continuity in that scenario. Firms that don’t address this in writing are firms you’re contracting with on faith.

What a Level 2 C3PAO assessment looks like — and what it actually costs

A CMMC Level 2 C3PAO assessment follows the four phases of the CMMC Assessment Process: pre-assessment, assessment of conformity, results reporting, and certificate or POA&M closeout. DoD’s own cost model in the 32 CFR Part 170 Final Rule estimates Level 2 (C3PAO) certification and affirmation at approximately $101,752 for a small entity (including about $31,234 for the C3PAO engagement itself) and approximately $112,345 for a non-small entity (including about $52,056 for the C3PAO engagement).Practitioner quote data we’ve reviewed shows wider variation in practice, scope-dependent. The C3PAO assessment fee is separate from — and usually a minority of — your total CMMC compliance investment.

The four phases (CAP-aligned)

1. Pre-assessment. Scope confirmation, evidence-request issuance, scheduling, contracting.
2. Assessment of conformity. Evidence review using NIST SP 800-171A, Assessing Security Requirements for Controlled Unclassified Information(June 2018), as the assessment procedures for NIST SP 800-171 Revision 2’s 110 security requirements — 320 assessment objectives total. Interviews, control evaluation, scoring.
3. Results reporting. The C3PAO finalizes the assessment package and submits results into CMMC eMASSper 32 CFR §170.17. From CMMC eMASS, the results transmit to the DoD’s Supplier Performance Risk System (SPRS).
4. Certificate decision or POA&M closeout.The Cyber AB reviews the C3PAO’s submission. The result is either a Final Level 2 (C3PAO) Certification — current for up to three years only when the required annual affirmation remains current — or a Conditional Level 2 (C3PAO) Certificationwith a 180-day POA&M window for limited eligible gaps.

Cost reality

• DoD Final Rule estimate (small entity): ~$101,752 total for Level 2 (C3PAO) certification and affirmation, of which ~$31,234 is the C3PAO engagement.
• DoD Final Rule estimate (non-small entity): ~$112,345 total, of which ~$52,056 is the C3PAO engagement.
• Practitioner quote data (small DIB, single environment): assessment-only fees commonly $35K–$55K.
• Practitioner quote data (mid-tier DIB, hybrid environment): assessment-only fees commonly $50K–$100K.
• Practitioner quote data (large prime / supplier, 500+ employees, multi-site): assessment-only fees commonly $100K+.
• Total CMMC compliance cost (readiness + remediation + assessment + ongoing operations) typically runs materially higher than the assessment fee alone in the first three-year cycle.

There is no published industry rate card and the federal estimate reflects modeled assumptions. Quoted providers will price your scope, environment, and timeline differently — get three quotes.

Triennial reassessment

A Final Level 2 (C3PAO) certification is current for up to three years with current annual affirmation. Per DFARS 252.204-7021, the contractor must maintain the required CMMC status for the duration of the contract, which means scheduling reassessment well ahead of expiration on any contract that extends beyond the certificate’s three-year window.

When to engage a C3PAO: the timing equation

Engage a C3PAO only after your readiness work is genuinely complete: SSP documenting all 110 NIST SP 800-171 Revision 2 requirements within the defined scope, controls implemented and evidenced, gap closure run, and a target certification date driven by your contract requirements. Industry guidance commonly suggests booking 8 to 16 weeks ahead of your target certification date, scope-dependent. Booking too early risks a failed or conditional assessment; booking too late risks Phase 2 timing pressure.

Readiness signals (book) vs delay signals (wait)

Phase timing: what’s actually scheduled

• Phase 1 (November 10, 2025 – November 9, 2026): DoD intends to include Level 1 (Self) and Level 2 (Self) requirements in applicable solicitations, with discretion to include Level 2 (C3PAO) for selected solicitations.
• Phase 2 (begins November 10, 2026): DoD intends to include Level 2 (C3PAO) requirements in applicable new solicitations and contracts as a condition of award, with discretion to delay inclusion to an option period. DoD also has discretion to include Level 3 (DIBCAC) requirements during this phase.
• Phase 3 (begins November 10, 2027): DoD intends to include Level 2 (C3PAO) requirements across all applicable solicitations and contracts, including option periods on contracts awarded prior to Phase 3. Level 3 (DIBCAC) requirements expand similarly.
• Phase 4 (begins November 10, 2028): Full implementation across applicable contracts.

The implementation schedule is codified at 32 CFR §170.3(e), with the DFARS implementation rule effective November 10, 2025.

If your contracts are likely to require Level 2 (C3PAO) in solicitations awarded after November 10, 2026, the realistic question is: do you have enough time to be ready, book a fit-matched C3PAO, and complete the assessment before your contracting officer reads your SPRS status? For most contractors with material readiness work remaining, the honest answer is “not without starting now.”

12 questions to ask before signing a C3PAO engagement

Send the same 12 questions to every shortlisted C3PAO. The goal isn’t to find the cheapest answer — it’s to compare apples to apples and surface the firm with the most operational maturity for your engagement. Vendors that answer thoroughly and in writing are vendors that take the engagement seriously.

1. What is your legal entity name as listed in the Cyber AB Marketplace? What is the URL of your Marketplace listing?
2. What is your current Cyber AB status (Authorized C3PAO / Accredited C3PAO), and what is the authorization date?
3. R2002 check: Have you or any affiliated organization provided consulting, implementation, product sales, managed services, or readiness work to our organization within the past three years? If yes, will you provide a written R2002 conflict analysis?
4. Who will serve as Lead CCA for our assessment, and what is their Cyber AB credential URL?
5. Who is the Quality Assurance individual assigned to our engagement, and what is their credential?
6. How many CCAs and other assessors will be assigned in total, and what is each person’s role?
7. What does your assessment methodology look like, and how does it map to the CMMC Assessment Process (CAP)?
8. What information do you need before quoting our scope? What’s in scope vs out of scope under your default scoping assumptions?
9. What’s included in the quote? What’s excluded? What assumptions would change the price?
10. What’s your earliest realistic assessment window for our scope?
11. How do you handle a Conditional Level 2 outcome and POA&M closeout?
12. How do you submit results to CMMC eMASS and SPRS, and what does our affirmation process look like after certification?

A short template you can paste into email

Subject: CMMC Level 2 C3PAO Quote Request — [Your Company Name]

We're evaluating Authorized C3PAOs for a CMMC Level 2 certification 
assessment. Before we go further, we'd appreciate your responses on:

1. Your legal entity name and Cyber AB Marketplace listing URL.
2. Current authorization status (Authorized C3PAO / Accredited C3PAO) 
   and authorization date.
3. R2002 conflict check: have you or any affiliated organization 
   provided consulting, implementation, MSP/MSSP services, product 
   sales, or readiness work to us within the past three years?
4. Proposed Lead CCA and Quality Assurance individual for our 
   engagement, with Cyber AB credential URLs.
5. What scoping information you need from us before quoting.
6. Earliest realistic assessment window.

Our scope summary:
- Required CMMC status (from contract): Level 2 (C3PAO)
- CUI environment: [GCC High / AWS GovCloud / on-prem / hybrid]
- Employee count: [number]
- Site count: [number]
- SSP version and date: [version/date]
- Target certification date: [date]

We'll share our SSP and additional scoping detail once an NDA is in 
place and R2002 conflicts are cleared. We'll re-verify Marketplace 
status before signing.

Thank you,
[Name, title]

One word of caution on what to send via this channel.

Do not paste CUI, classified information, controlled technical data, export-controlled content, system diagrams, vulnerability detail, incident timelines, contract numbers, IP addresses, or any sensitive security information into a quote request email. Channels for sharing sensitive data should be established only after the vendor is selected and an appropriate agreement is in place.

Frequently asked questions about finding an authorized C3PAO

What we actually verified

The Defense Compliance Report is an independent trade publication on CMMC 2.0 and DIB compliance. We are not affiliated with the Cyber AB, the DoD, or any U.S. government agency. The following source artifacts were reviewed in preparing this guide:

Marketplace counts shift between Cyber AB Town Hall publications and as Candidate C3PAOs complete authorization. We update these figures when new Cyber AB source artifacts or Marketplace snapshots are available. Practitioner quote ranges reflect cross-referenced industry survey data and published practitioner disclosures; verify with quoted providers.

If you find an error, write to corrections@thedefensecompliancereport.com. Our methodology and corrections policy are published at /methodology/ and /corrections/.

The bottom line

The difference between a Level 2 certificate that stands and one that doesn’t is whether the firm that issued it was an Authorized or Accredited C3PAO in the Cyber AB Marketplace on the day of issuance — and whether that firm was free of an R2002 conflict with you. Everything else — environment fit, cost, scheduling, methodology — matters, but flows from those two verifications.

The Cyber AB Marketplace is the answer. The 4-step workflow is how you use it. The R2002 independence rule is what protects you from buying an assessment that can’t be defended. The Phase 2 trigger of November 10, 2026 is the only real timing pressure in this market, and it’s a calendar fact — not a sales pitch.

If your readiness is real and your environment is documented, you’re ready to shortlist Authorized C3PAOs that fit. If it isn’t, fix readiness first; an assessor will find what a checklist would have shown you for a fraction of the cost.

Related guides

• Best C3PAO for CMMC Level 2: Independent Selection Framework (2026)
• C3PAO List 2026: How to Find and Verify Authorized Assessors
• CMMC Provider Directory 2026: Verify C3PAO, RPO & MSP Status
• CMMC Provider Categories: C3PAO vs RPO vs MSP vs GRC
• CMMC Readiness Checklist (All 14 Control Families)
• CMMC Level 2 Cost Guide: Federal Estimates and Practitioner Data
• CMMC Self-Assessment vs C3PAO: Which Path Is Right for You?
• CMMC Implementation Phases: Timeline and What Each Phase Requires
• CMMC RPO Consultants: Vetting, Costs & Independence (2026)