10 Best CMMC Compliance Companies for Defense Contractors in 2026: Verified and Compared

Last updated: August 25, 2026

Choosing among the best CMMC compliance companies is now a contract decision, not just a security one. The Cybersecurity Maturity Model Certification (CMMC) is the Department of Defense (DoD) program that verifies how defense contractors protect federal contract information (FCI) and controlled unclassified information (CUI), and the required level is named in the solicitation itself.

This list covers two kinds of CMMC compliance companies. A Registered Practitioner Organization (RPO) prepares you: it runs the gap assessment, builds your documentation, and guides remediation. A CMMC Third-Party Assessment Organization (C3PAO) performs the Level 2 certification assessment. Some firms hold both roles. We verified every status in the official Cyber AB Marketplace in August 2026 rather than taking each company's word for it.

Why Defense Contractors Need a CMMC Compliance Partner

Where a contract names a CMMC level, the status has to be in place before award rather than promised for later. The DFARS final rule puts it plainly: "The requirements at 32 CFR part 170 establish that the CMMC requirement must be met at the time of award." The program rule, 32 CFR Part 170, took effect on December 16, 2024, and CMMC clauses began appearing in solicitations issued on or after November 10, 2025, when the companion DFARS acquisition rule took effect and added the clause at DFARS 252.204-7021.

The phase-in then paused. In a July 13, 2026 memorandum, the implementation guidance issued under the Chief Information Officer's suspension memorandum states: "The upcoming November 2026 transition to Phase 2 of CMMC implementation is suspended." While the suspension holds, requiring activities "must only include the need for CMMC Level 1 (Self) or Level 2 (Self) assessments" and "may not designate CMMC Level 2 (C3PAO) or Level 3 (DIBCAC) assessments during this period." Requirements already written into active solicitations are being removed by amendment. The assessor capacity built for that transition has not gone anywhere: the Cyber AB Marketplace listed roughly 100 authorized C3PAOs in August 2026, and they remain the firms that will run certification assessments once the requirement returns.

What did not pause is the security work itself. The same memorandum states that "during this suspension the Department will enforce baseline compliance with NIST SP 800-171 Rev 2 through CMMC Level 1 and CMMC Level 2 self-assessment and select Government-led assessments," and that the requirements of DFARS 252.204-7012 "remain in effect." A contractor that lets its score slide is exposed today, and the certification requirement returns on whatever schedule the review sets.

The CMMC framework has three levels, and the one your contract names depends on the data you handle. Level 1 covers federal contract information, with 15 safeguarding requirements from FAR 52.204-21 and an annual self-assessment recorded in the Supplier Performance Risk System. Level 2 covers controlled unclassified information and maps to the 110 security requirements of NIST SP 800-171. It is met by a self-assessment or by a certification assessment from a C3PAO, whichever the solicitation names, both on a three-year cycle, and only the self-assessment can be required while the suspension holds. Level 3 adds selected NIST SP 800-172 requirements for the most sensitive programs, and it is assessed by DIBCAC, the Defense Industrial Base Cybersecurity Assessment Center, rather than by a C3PAO.

Learn more about CMMC levels and cost

Read our guide to the CMMC controls list for the requirement counts at each level, and our guide to CMMC certification cost for what drives the budget.

Compliance requirements also flow down the defense supply chain: subcontractors handling CUI at any tier need Level 2 status of their own. That is one pressure point on a compliance program, and budgets are the other, since readiness work, remediation, and assessor fees add up differently for every environment.

A compliance partner earns its fee by compressing this work: scoping the assessment boundary, closing compliance gaps in the right order, producing the evidence an assessor expects, and keeping your cybersecurity posture stable between assessment cycles. Scope is the biggest lever of the four. Contractors often keep CUI inside an enclave, a walled-off part of the environment, or inside Microsoft's government cloud (GCC High), so that only that part falls inside the assessment rather than the whole business. CMMC is assessed on evidence, and producing that evidence is the work a compliance partner takes off your team.

What Are the Best CMMC Compliance Vendors?

One disclosure before the names: CyberCrest is our company, and it opens the list. The rest are ordered by how closely their services match a defense contractor's needs.

Here is the short answer, with each vendor's verified Cyber AB role:

1. CyberCrest (RPO): readiness, gap assessment, and hands-on remediation for defense contractors of any size.
2. Summit 7 (RPO): Microsoft government cloud enclaves and managed security for the defense industrial base.
3. Kieri Solutions (C3PAO): assessment-grade preparation and formal Level 2 assessments.
4. MAD Security (RPO): compliance consulting combined with managed security services.
5. SysArc (RPO): managed IT and GCC/GCC High migration for DoD suppliers, over 1,000 of which it reports helping through CMMC.
6. KLC Consulting (C3PAO): consulting and mock assessment bundles from an authorized assessor.
7. Cherry Bekaert (C3PAO and RPO): CPA-firm advisory depth, with assessment and consulting under one roof.
8. A-LIGN (C3PAO and RPO): high-volume federal assessor with multi-framework coverage.
9. Coalfire Federal (C3PAO and RPO): one of the first authorized C3PAOs, mock-to-formal assessment path.
10. RSI Security (C3PAO): independent Level 2 assessments plus separate advisory support.

CMMC Compliance Companies at a Glance

The table compares all ten side by side: statuses come from the Cyber AB register, services and pricing models from each company's own pages ("on request" means the company publishes no pricing model).

Capabilities Compared

The table below separates the capabilities that decide who you can hire for what.

What the columns mean:

• Certification assessment: the company is an authorized C3PAO in the Cyber AB Marketplace, so it can perform the Level 2 certification assessment itself. Candidate status does not count.
• Hands-on remediation: its own pages say it implements security controls or runs remediation, rather than only advising. If a firm does this for you, your certification assessment has to come from a different firm.
• GCC High or enclave: its own pages describe working in Microsoft GCC or GCC High environments, migrating CUI into them, or designing the enclave that keeps CUI inside a defined boundary.
• Managed security: it sells ongoing managed security or managed IT alongside compliance work.
• Other frameworks: its own pages list services for SOC 2, ISO 27001, FedRAMP, or HITRUST.

A ✖ means the capability is not stated on the company's own pages, not that the company refuses the work.

Top CMMC Consulting Companies in 2026: Full Breakdown

Each profile below follows the same shape: verified status, services from the company's own pages, a best-fit call, and an honest watch-out. The top CMMC compliance experts differ mainly in where they sit in the CMMC certification process: preparing you, assessing you, or both.

1. CyberCrest

CyberCrest is an information security compliance firm that supports defense contractors from initial scope identification to "ready-to-bid." As an RPO with Cyber AB Registered Practitioners on staff, the team combines CMMC compliance consulting services with hands-on remediation across technical and administrative tasks. The company has over 100 client engagements across industries behind it.

• Type: Compliance consultancy
• Founded: 2021
• HQ: Encinitas, CA
• Cyber AB status: RPO
• Specialization: CMMC readiness with hands-on remediation, inside a practice that also covers SOC 2, ISO 27001, HITRUST, PCI DSS, NIST 800-171 and FedRAMP
• Serves: Organizations from startups to Fortune 500, in the US, Canada, Europe, and APAC
• Pricing: Scoped quote
• Certifications: Licensed CPA firm registered with the AICPA; PCI DSS Qualified Security Assessor Company; Authorized External Assessor Organization for HITRUST

CMMC services

• CMMC gap assessment evaluating your organization's cybersecurity posture, with a prioritized remediation roadmap
• Remediation support, from technical controls to policies and procedures
• System Security Plan (SSP) and Plan of Action and Milestones (POA&M) development
• Advisory services, internal control testing, and compliance readiness for third-party assessments
• Security strategy across GCC High environments and adjacent frameworks (NIST 800-171, ISO 27001, FedRAMP)

Pros

• Hands-on remediation across technical and administrative tasks, not advice alone
• Ready to start without a multi-month ramp-up
• Multi-framework depth (NIST 800-171, ISO 27001, FedRAMP) and GCC High environment experience

Cons

CyberCrest is not a C3PAO; the certification assessment itself is performed by an accredited C3PAO, with CyberCrest preparing you for it and supporting you through it.

Best for

Contractors that want one team to run the initial assessment, close the gaps, and produce the evidence, with the ability to begin right away.

2. Summit 7

Summit 7 Systems is a Registered Practitioner Organization whose practice is built on the Microsoft government cloud. Unlike generalist managed service providers, it works exclusively with the defense industrial base, does not outsource, and staffs an all U.S. citizen team, which matters for data under the International Traffic in Arms Regulations (ITAR) and other export controls.

• Type: MSP / MSSP
• Founded: 2008
• HQ: Huntsville, AL
• Cyber AB status: RPO
• Specialization: Microsoft Gov Cloud enclaves and managed security for the defense industrial base
• Serves: 1,500+ defense industrial base companies, from micro-businesses to large enterprises
• Pricing: On request
• Certifications: 7 Microsoft advanced specializations; Microsoft AOS-G program member; Azure Expert MSP; Microsoft Intelligent Security Association member

CMMC services

• Two deployment models: All-In, or an enclave for organizations where fewer than 15 percent of users touch CUI
• Fully managed Microsoft Gov Cloud workspaces (SharePoint, Teams, OneDrive, Outlook), isolated from the commercial side of the business
• Managed services in three named tiers: Guardian (MSP), Vigilance (MSSP), and Commander (managed GRC) for continuous NIST SP 800-171 coverage
• Cybersecurity consulting, security operations center (SOC) services, and managed detection and response

Pros

• Reports that 8 of the top prime contractors in the defense industrial base trust it with their IT, security, and compliance
• Reports 750+ CMMC implementations and a 100 percent pass rate on client Level 2 assessments

Cons

Summit 7 is not a C3PAO, so the certification assessment comes from a separate firm. The offering is also built around the Microsoft government cloud; contractors whose data does not live in Microsoft 365 should confirm fit first.

Best for

Contractors standardizing on the Microsoft government cloud, especially mixed commercial and defense businesses that need to isolate CUI in an enclave without dragging the whole company into scope.

3. Kieri Solutions

Kieri Solutions is an authorized C3PAO whose consulting side develops the policies, procedures and System Security Plan for clients building toward Level 2, and whose gap assessment is written against every assessment objective rather than a checklist.

• Type: Assessor + consultancy
• Founded: 2015
• HQ: Woodbine, MD
• Cyber AB status: authorized C3PAO
• Specialization: Assessor-grade gap assessments and formal Level 2 certification assessments
• Serves: Defense contractors preparing for CMMC Level 2
• Pricing: Custom, by environment

CMMC services

• Scoping and gap assessment against all 110 NIST SP 800-171 security requirements
• Remediation and implementation support
• Policy, procedure, and SSP development
• Formal CMMC Level 2 assessments

Pros

• Gap reports list every assessment objective as met or other than met, the format assessors use
• A free gap assessment is offered as the entry point
• More than 50 assessments completed
• Founders' background securing U.S. Navy and DISA networks

Cons

A C3PAO cannot assess an organization it consulted to prepare, so decide early which role you want Kieri to play.

Best for

Teams that want their readiness work held to assessor standards from the first engagement.

4. MAD Security

MAD Security is a Service-Disabled Veteran-Owned Small Business and managed security services provider whose CMMC services cover the full compliance process. Its consulting side runs comprehensive gap assessments, POA&M remediation, SSP development, and pre-assessment mock audits with artifact validation, while its Virtual Compliance Manager service handles continuous compliance management after the initial push.

• Type: MSSP
• Founded: 2010
• HQ: Huntsville, AL
• Cyber AB status: RPO
• Specialization: CMMC compliance combined with managed security operations
• Serves: DoD contractors that need both compliance and 24/7 security operations
• Pricing: On request
• Certifications: Service-Disabled Veteran-Owned Small Business

CMMC services

• Comprehensive gap assessments and remediation prioritization
• POA&M remediation planning and tracking
• System Security Plan development
• Pre-assessment mock audits and artifact validation
• Technology guidance on compliant tooling choices

Pros

• Virtual Compliance Manager keeps compliance continuous after certification
• Pre-assessment mock audits include artifact validation
• MSSP practice running since 2010

Cons

MSSP tooling choices are part of the package; ask how recommendations stay vendor-neutral.

Best for

Contractors that need CMMC compliance and round-the-clock managed security operations from one MSSP.

5. SysArc

SysArc is a managed IT and cybersecurity provider for government contractors, and it works in stages: migrate the team into a hardened environment aligned to NIST SP 800-171, develop the SSP and POA&Ms that give assessors the documentation they need, then run IT and operational security as an ongoing managed service.

• Type: MSP
• Founded: 2004
• HQ: Rockville, MD
• Cyber AB status: RPO
• Specialization: GCC/GCC High migration and managed IT for government contractors, in a practice that also covers FedRAMP, FISMA and GDPR
• Serves: DoD suppliers and government contractors; the company reports having helped over 1,000 of them through CMMC
• Pricing: On request
• Certifications: Microsoft AOS-G Partner; approved GCC/GCC High reseller

CMMC services

• CMMC advisory and readiness program
• Microsoft GCC/GCC High migration services
• SSP and POA&M development
• Managed IT and cybersecurity for government contractors

Pros

• One vendor for daily IT, operational security, and CMMC compliance
• Builds a hardened environment aligned to NIST 800-171, then develops the SSP and POA&Ms from it
• Packaged CMMC Readiness OS program

Cons

The offering is built around the Microsoft cloud stack; contractors on other platforms should confirm fit first.

Best for

Defense contractors that would rather outsource IT, security measures, and compliance to one provider.

6. KLC Consulting

KLC Consulting is an authorized C3PAO that leads with consulting: readiness "mock" assessments, a mock-plus-Level-2 assessment bundle, POA&M remediation, and SSP, policy, and procedure development. The firm positions itself as a liaison through the CMMC assessment process, including ongoing support after the assessment, and works with defense industrial base clients up to large companies.

• Type: Consultancy + assessor
• Founded: 2002
• HQ: Framingham, MA
• Cyber AB status: authorized C3PAO
• Specialization: Readiness "mock" assessments and C3PAO-grade CMMC consulting
• Serves: Defense industrial base clients, up to large companies
• Pricing: Custom, by scope

CMMC services

• CMMC compliance consulting and readiness planning
• Readiness "mock" assessments and mock-plus-assessment bundles
• POA&M remediation
• SSP, policies, and procedures development
• Assessment liaison and post-assessment support

Pros

• Cost drivers are laid out openly on the site (business size, current state, IT architecture, CAGE entities, SSP count)
• Scales up to large-company engagements
• Preparation is run with an authorized assessor's perspective

Cons

The same rule applies as for any C3PAO: it cannot assess an organization it consulted to prepare, so decide early which role you want KLC to play.

Best for

Organizations that want a full rehearsal of the audit process, run by an authorized C3PAO, before the formal one.

7. Cherry Bekaert

Cherry Bekaert is a national CPA and advisory firm that is both an authorized C3PAO and a designated Registered Practitioner Organization, which suits organizations where compliance is a board-level topic aligned with business objectives.

• Type: CPA and advisory firm
• HQ: Raleigh, NC
• Cyber AB status: authorized C3PAO and RPO
• Specialization: Audit-grade CMMC assessments inside a broad advisory practice
• Serves: DoD contractors, within a national multi-industry accounting and advisory client base
• Pricing: On request

CMMC services

• CMMC gap assessment and remediation reporting
• Phased Level 2 certification assessments, including submission to the Enterprise Mission Assurance Support Service (eMASS)
• POA&M close-out assessments
• Advisory across adjacent regulatory frameworks

Pros

• Phased process runs from gap assessment to certificate issuance in CMMC eMASS
• POA&M close-out assessments included in the path
• Remediation progress reported to stakeholders and executive leadership

Cons

Big-firm engagement structures can be heavier than a small contractor needs; scope the engagement carefully.

Best for

Defense contractors that want audit-firm governance around the certification process, with tax and advisory work under the same roof.

8. A-LIGN

A-LIGN is a compliance assessor with a federal practice spanning FedRAMP and related programs. For CMMC it offers Cyber AB-authorized Level 2 certification assessments for contractors handling CUI, plus CMMC training delivered under its CAICO Approved Training Provider authorization, so key personnel can build expertise in-house.

• Type: Assessment firm
• Founded: 2009
• HQ: Tampa, FL
• Cyber AB status: authorized C3PAO, RPO, and approved training provider
• Specialization: High-volume federal assessments and multi-framework audit consolidation
• Serves: 6,400+ clients globally
• Pricing: On request

CMMC services

• CMMC Level 2 certification assessments
• Readiness reviews within a multi-framework audit program
• Cyber AB-approved CMMC training for internal teams

Pros

• 36,000+ audits completed and 1,000+ federal assessments since 2013
• One assessor for CMMC, SOC 2, ISO 27001, and FedRAMP programs
• Trains client teams under its own Cyber AB-approved authorization

Cons

A-LIGN's scale favors well-prepared clients; contractors starting from scratch may want an RPO for ongoing support first.

Best for

Companies that already run SOC 2, ISO 27001, or FedRAMP audits and want a single assessor for a consolidated compliance program.

9. Coalfire Federal

Coalfire Federal (Veris Group, LLC dba Coalfire Federal) offers a direct path from rehearsal to certification: mock assessments that let clients test their security controls and practice answering assessor questions, then the official C3PAO assessment recognized by the Cyber AB and the Department of Defense.

• Type: Assessment firm
• Founded: 2001
• HQ: Chantilly, VA
• Cyber AB status: authorized C3PAO and RPO
• Specialization: Mock-to-formal C3PAO assessment path, inside a federal practice that also covers FedRAMP and FISMA
• Serves: Federal contractors heading to Level 2 certification
• Pricing: On request

CMMC services

• Mock assessments against current cybersecurity practices
• Official C3PAO Level 2 assessments
• Advisory services covering CUI boundary analysis, gap analysis and remediation support
• POA&M development
• Vendor-neutral compliance guidance

Pros

• One of the first authorized C3PAOs
• POA&M development for the gaps a mock assessment uncovers
• Vendor-neutral guidance

Cons

A C3PAO cannot assess an organization it consulted to prepare, so if Coalfire Federal assesses you, your remediation has to come from somewhere else.

Best for

Contractors close to readiness that want a proven mock-to-formal assessment sequence.

10. RSI Security

RSI Security performs independent, objective CMMC Level 2 assessments as an authorized C3PAO listed in the Cyber AB Marketplace. On the advisory side, it offers readiness and gap assessment and helps contractors define a compliance boundary or enclave, limiting CMMC requirements to the systems, people, and processes that handle FCI or CUI.

• Type: Assessor + advisory
• Founded: 2013
• HQ: Southlake, TX
• Cyber AB status: authorized C3PAO (listed in the register as RSI Systems, Inc.)
• Specialization: Independent Level 2 assessments with advisory kept separate, inside a practice that also covers SOC 2, ISO 27001, HITRUST, PCI DSS and HIPAA
• Serves: Defense contractors that want a strictly independent assessor
• Pricing: On request

CMMC services

• Independent CMMC Level 2 assessments (scope validation, SSP adequacy review, practice scoring, allowable POA&M identification)
• Readiness and gap assessment
• Remediation planning and control implementation on the advisory side
• Enclave and compliance boundary scoping advice
• Post-certification compliance maintenance guidance

Pros

• The assessor role is kept strictly apart from consulting
• Scoping advice can shrink the assessed environment before the engagement starts
• Guidance continues after certification

Cons

The company operates in the register under its legal name RSI Systems, Inc.; check that contracts and the Marketplace listing match.

Best for

Teams that want a strictly independent assessor with clear separation between advice and assessment.

Best CMMC Compliance Services by Use Case

Different contractors need different strengths. Four common scenarios:

• SMB defense contractors. SysArc's managed IT plus GCC High model, or CyberCrest's scoped readiness engagements, fit organizations without a dedicated security team. On a small-business budget, these are also the best companies for CMMC gap assessments to approach first.
• Technical implementation and managed security. Summit 7 and MAD Security combine remediation with ongoing security operations, useful when risk management and monitoring must continue after certification.
• Level 2 certification assessment, when it returns. Kieri Solutions, Coalfire Federal, A-LIGN, RSI Security, KLC Consulting, and Cherry Bekaert are authorized C3PAOs, the firms that run the certification assessment itself. No contract can require that assessment during the suspension, so this is the shortlist to keep for the moment it does.
• Multi-framework programs. Contractors that run CMMC alongside NIST SP 800-171, ISO 27001, or FedRAMP save effort with firms that cover several frameworks, such as Cherry Bekaert, A-LIGN, or CyberCrest, whose NIST 800-171 compliance services share most of the same control set.

Learn more before you shortlist

Read our CMMC assessment guide to see what a Level 2 certification assessment involves, and our comparison of CMMC vs NIST 800-171 if you are running both programs at once.

How to Choose the Best CMMC Consultants

The companies that help with CMMC range from documentation-only consultancies to managed security providers and authorized assessors, and marketing labels blur the difference. Judge candidates on evidence:

• Register status that matches your need. Verify the RPO or C3PAO listing in the Cyber AB Marketplace yourself. For CMMC consulting for third-party audits, remember the split: your consultant prepares you and an independent C3PAO assesses you. The program rule is explicit, requiring the accreditation body's code of professional conduct to prohibit ecosystem members "from participating in the Level 2 certification assessment process for an assessment in which they previously served as a consultant to prepare the organization for any CMMC assessment within 3 years" (32 CFR Part 170).
• Named people and credentials. Ask who will run your engagement and whether they hold Cyber AB credentials (Registered Practitioner, Certified CMMC Professional, or Certified CMMC Assessor).
• A real assessment process. A serious gap analysis maps findings to specific requirements with risk ratings, not a generic checklist.
• Documentation authorship. Confirm the firm drafts system security plans and POA&Ms with you, rather than handing over templates.
• Hands-on remediation. Some firms advise only; if you need controls implemented, ask for a proven track record of doing the work.
• Environment experience. GCC High and enclave builds are specialized; ask for evidence in environments like yours.
• Scoping before pricing. Ask how the provider will shrink the environment that touches CUI, through an enclave or a boundary redesign, before it prices the program. Credible firms quote after seeing your boundary, data flows and current cybersecurity practices, never from a rate card, and a provider that never raises scoping is pricing a bigger program than you may need.
• Ongoing compliance support. Certification is a cycle. Ask what ongoing monitoring, affirmation support, and help between assessment cycles look like.

Useful questions to ask, and what each answer reveals:

• "Which Marketplace listing is yours?" A verifiable status, checkable in minutes.
• "How many Level 2 engagements have you completed in environments like ours?" Relevant depth, not generic experience.
• "Who writes the System Security Plan?" Authorship, and how much of the work stays with your team.
• "What happens if the assessor finds gaps?" Whether the POA&M plan is realistic.
• "How do you support the annual affirmation?" What life after certification looks like.
• "Who exactly will work on our engagement?" Whether the key personnel match the pitch.

Red Flags When Choosing a CMMC Compliance Company

Some warning signs are specific to how the CMMC program works, and every one of them can be checked before you sign anything.

• "We will prepare you, then certify you." A firm that served as your consultant to prepare for a CMMC assessment is barred from taking part in your Level 2 certification assessment for the next three years. An offer to do both in one engagement means the provider either misunderstands the program or expects you not to check.
• A C3PAO claim the register does not carry. Some firms advertise C3PAO status while the Cyber AB Marketplace lists them as candidates rather than authorized assessors. Search the company's legal name in the catalog and read the entry itself.
• A guaranteed pass, or a guaranteed date. A consultant controls your preparation, not the assessor's verdict and not the assessor's calendar. A guarantee on either is a sales line.
• A price before a scope. Cost follows the assessment boundary. A flat quote offered before anyone has looked at your systems and data flows tells you what the provider hopes the work will be, not what it is.
• No named people. A provider that will not say who runs your engagement, or what Cyber AB credentials those key personnel hold, is selling a brand rather than a team. Ask for the names before you sign, not after.
• Documentation without implementation. A System Security Plan describing controls that nobody has deployed fails an assessment, and a paperwork-only engagement leaves you to discover that gap late.
• No references from contractors your size. A firm that cannot connect you with a comparable defense contractor is asking you to take its proven track record on trust.

Start Your CMMC Readiness Today with CyberCrest

CyberCrest supports defense contractors through the whole CMMC compliance journey: scoping, gap assessment, remediation, documentation, and readiness validation before a formal assessment. As a Registered Practitioner Organization, we help you achieve CMMC compliance at the level your contracts require and maintain compliance between assessment cycles.

Engagements start with a kickoff call and an environment overview, so the scope and effort are clear before any work begins. If a solicitation with a CMMC requirement is already on your desk, that conversation is worth having this week. Book a call and we will scope the work from there.

Conclusion

The best CMMC compliance companies split into preparers and assessors, and many contractors will eventually need one of each. CyberCrest, Summit 7, MAD Security, and SysArc anchor the readiness side; Kieri Solutions, KLC Consulting, Coalfire Federal, A-LIGN, RSI Security, and Cherry Bekaert carry authorized assessment credentials. Verify the status in the Cyber AB Marketplace, match the firm's strengths to your level and environment, and start before the contract deadline forces the schedule.

Sources

• Federal Register. Cybersecurity Maturity Model Certification (CMMC) Program, Final Rule. https://www.federalregister.gov/documents/2024/10/15/2024-22905/cybersecurity-maturity-model-certification-cmmc-program
• Acquisition.gov. DFARS Part 252, clause 252.204-7021, Contractor Compliance With the Cybersecurity Maturity Model Certification Level Requirements. https://www.acquisition.gov/dfars/part-252-solicitation-provisions-and-contract-clauses#DFARS_252.204-7021
• Acquisition.gov. FAR 52.204-21, Basic Safeguarding of Covered Contractor Information Systems. https://www.acquisition.gov/far/52.204-21
• Federal Register. Defense Federal Acquisition Regulation Supplement: Assessing Contractor Implementation of Cybersecurity Requirements (DFARS Case 2019-D041), Final Rule. https://www.federalregister.gov/documents/2025/09/10/2025-17359/defense-federal-acquisition-regulation-supplement-assessing-contractor-implementation-of
• NIST. SP 800-171 Rev. 2, Protecting Controlled Unclassified Information in Nonfederal Systems and Organizations. https://csrc.nist.gov/pubs/sp/800/171/r2/upd1/final
• Department of War, Office of the Chief Information Officer. Implementing the suspension of CMMC Phase II, Attachment 1, Cybersecurity Maturity Model Certification Procedures (26-P-1023). https://dowcio.war.gov/Portals/0/Documents/Library/ImplementingSuspensionCMMC-PhaseII.pdf
• U.S. Government Publishing Office. 32 CFR Part 170, Cybersecurity Maturity Model Certification (CMMC) Program. https://www.govinfo.gov/content/pkg/CFR-2025-title32-vol1/pdf/CFR-2025-title32-vol1-part170.pdf
• Cyber AB. Marketplace directory of the CMMC ecosystem. https://cyberab.org/Catalog