CMMC Remediation Services

CMMC Remediation & Implementation Services for Defense Contractors

Identifying gaps is only half the battle — closing them before your C3PAO assessment determines whether you keep or lose your DoD contracts. Petronella Technology Group, Inc. provides hands-on CMMC remediation services that implement the technical controls, develop the policies and procedures, deploy the secure infrastructure, and train the personnel needed to satisfy all 110 NIST SP 800-171 requirements and achieve CMMC Level 2 certification.

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BBB A+ Accredited Since 2003 | Founded 2002 | 2,500+ Clients | CMMC Registered Practitioner Organization

Hands-On Implementation

We do not just deliver reports and leave you to figure out the fixes. Our engineers deploy firewalls, configure MFA, implement encryption, set up SIEM, and build every technical control your environment needs to satisfy CMMC Level 2.

Complete Documentation

Every control we implement is documented in your System Security Plan with the detail and evidence that C3PAO assessors require — policies, procedures, configuration records, and objective evidence mapped to each of the 110 requirements.

CUI Enclave Solutions

Purpose-built secure environments on FedRAMP-authorized platforms that isolate CUI processing from your corporate network, reducing your assessment boundary by 40-60% and accelerating your path to certification.

Personnel Training

Security awareness training, role-based CUI handling procedures, and incident response exercises that prepare your staff for both everyday security operations and the personnel interviews during C3PAO assessments.

Closing the Gap Between Assessment Findings and CMMC Certification

Every defense contractor's path to CMMC Level 2 certification follows the same arc: assess, remediate, certify. The gap assessment reveals where your organization falls short of the 110 NIST SP 800-171 requirements. The C3PAO assessment determines whether you receive certification. Between those two milestones lies the most demanding phase of the entire journey — remediation. This is where gaps identified on paper must be transformed into implemented, documented, and functioning security controls that will withstand scrutiny from certified assessors. Petronella Technology Group, Inc. specializes in this critical remediation phase, providing the engineering resources, policy expertise, training capabilities, and project management discipline needed to systematically close every compliance gap and prepare your organization for a successful C3PAO assessment.

CMMC remediation is fundamentally different from general IT projects because every implementation must satisfy a specific, documented requirement in a way that produces objective evidence an assessor can validate. Installing a firewall is not sufficient; the firewall must be configured to enforce specific access control requirements, its rule base must align with your documented security policy, logs must feed into your SIEM for monitoring and alerting, and the entire implementation must be described in your System Security Plan with enough detail for an assessor to verify configuration matches documentation. This evidence-based approach means that CMMC remediation demands not just technical competence but deep familiarity with the NIST SP 800-171 assessment methodology and the standards C3PAO assessors apply. Petronella Technology Group, Inc.'s CMMC Registered Practitioners have been implementing these controls for defense contractors since DFARS 252.204-7012 was first published, and our remediation work is specifically designed to satisfy the assessment criteria that determine certification outcomes.

The remediation phase typically involves three parallel workstreams that must be coordinated carefully. The first is technical control implementation — deploying, configuring, and validating the security infrastructure required to meet each technical requirement. This includes multi-factor authentication for all system access, FIPS 140-2 validated encryption for CUI at rest and in transit, Endpoint Detection and Response across all in-scope endpoints, centralized logging through a Security Information and Event Management platform, vulnerability scanning and patch management automation, network segmentation isolating CUI environments, secure configuration baselines for all operating systems and applications, and data loss prevention controls that detect and prevent unauthorized CUI exfiltration. Each implementation must be tested, validated, and documented before it can be considered complete. Our engineers handle this workstream using a structured deployment methodology that includes planning, configuration, testing, documentation, and validation for every control.

The second workstream is administrative control development — creating the policies, procedures, and governance structures that CMMC Level 2 requires. Many organizations underestimate this workstream because they view CMMC as primarily a technology challenge, but C3PAO assessors evaluate administrative controls with the same rigor they apply to technical implementations. Your organization needs a complete security policy library covering every NIST SP 800-171 control family, a formal incident response plan with documented escalation procedures and contact information, configuration management procedures that govern baseline configurations and change control, a media protection policy covering CUI on removable media and mobile devices, personnel security procedures including background screening requirements and termination processes, a security awareness training program with annual completion requirements, and formal risk assessment procedures. Petronella Technology Group, Inc. develops these documents using templates refined through years of CMMC preparation engagements, customized to reflect your specific organizational structure, technology environment, and operational processes. Every policy is written to be actionable and enforceable — not generic boilerplate that assessors will recognize as inadequate.

The third workstream is people preparation — training your workforce on their security responsibilities and preparing key personnel for the C3PAO assessment experience. CMMC Level 2 requires formal security awareness training for all personnel with access to CUI systems, and assessors routinely interview employees to verify that they understand and follow documented security procedures. If your system administrator cannot explain your access control policy, if your incident response team cannot walk through your response procedures, or if your general staff cannot describe CUI handling requirements, your C3PAO assessment is at risk regardless of how strong your technical controls are. Our training program covers general security awareness including phishing recognition, password hygiene, and physical security practices; role-specific training for IT staff, managers, and CUI handlers; incident response tabletop exercises that test your response procedures; and assessment preparation coaching for personnel who will interact with C3PAO assessors during the certification evaluation.

Coordinating these three workstreams requires disciplined project management with clear milestones, dependencies, and accountability. A multi-factor authentication deployment, for example, requires the technical implementation (configuring the MFA platform and enrolling users), the administrative documentation (updating the identification and authentication policy and SSP), and the personnel training (educating users on MFA procedures and exception handling). If any workstream falls behind, the requirement is not fully satisfied and will be cited during the C3PAO assessment. Petronella Technology Group, Inc. assigns a dedicated project manager to every CMMC remediation engagement, maintaining a master remediation tracker that maps every gap to its technical, administrative, and training components and tracks completion status across all workstreams. Weekly status reviews with your stakeholders ensure that progress stays on track, blockers are identified early, and your leadership has visibility into the certification timeline.

Our CMMC Remediation & Implementation Services

Multi-Factor Authentication & Identity Management
NIST SP 800-171 requires multi-factor authentication for all network access to privileged and non-privileged accounts, replay-resistant authentication mechanisms, and identifier management throughout the user lifecycle. We deploy and configure MFA solutions that cover every authentication pathway into your CUI environment — VPN connections, cloud application access, remote desktop sessions, administrative consoles, and local workstation logins. We configure account lockout policies, password complexity requirements (or move to passwordless authentication), session timeout controls, and automated account provisioning and deprovisioning linked to your HR processes. Every MFA implementation is validated to ensure enforcement rather than optional enrollment, because assessors will test authentication pathways during the C3PAO evaluation to confirm MFA cannot be bypassed.
Encryption & Data Protection (FIPS 140-2)
CMMC Level 2 requires FIPS 140-2 validated cryptographic mechanisms for protecting CUI at rest and in transit. This is one of the most technically demanding requirements because many commercial encryption products are not FIPS-validated, and organizations must verify that their specific product versions and configurations carry FIPS certification. We implement full-disk encryption on all endpoints and servers within the assessment boundary, configure TLS 1.2 or higher with FIPS-approved cipher suites for all network communications carrying CUI, deploy email encryption for CUI transmitted via email, implement database-level encryption for CUI stored in applications, and configure VPN tunnels with FIPS-validated cryptographic modules. We validate each implementation against the NIST Cryptographic Module Validation Program (CMVP) database and document the specific FIPS certificate numbers in your SSP, providing the evidence C3PAO assessors require.
SIEM, Audit Logging & Continuous Monitoring
Nine NIST SP 800-171 requirements address audit and accountability, mandating comprehensive logging, log protection, retention, correlation, and regular review. We deploy Security Information and Event Management platforms that collect audit logs from every in-scope system — servers, workstations, firewalls, VPN gateways, cloud services, and applications. We configure logging to capture all required event types including login attempts (successful and failed), privilege escalation, file access and modification, configuration changes, and security policy changes. Logs are protected from tampering through write-once storage, forwarded in real time to the SIEM, retained for the required period, and correlated to detect security anomalies. We establish alerting rules that notify your security team of suspicious activity and document the review procedures and response actions for each alert type. For organizations that lack internal security monitoring staff, our managed security services provide 24/7 monitoring and response.
Network Segmentation & Boundary Protection
System and Communications Protection requirements mandate monitoring, controlling, and protecting communications at system boundaries. We architect and implement network segmentation that isolates CUI processing environments from general corporate infrastructure, creating defensible boundaries that reduce your assessment scope and strengthen security posture. Implementation includes next-generation firewall deployment with intrusion prevention, VLAN configuration separating CUI and non-CUI network segments, access control lists restricting traffic flows between segments, DMZ architecture for internet-facing services, DNS filtering and web content filtering, and wireless network isolation. For organizations deploying CUI enclaves, we implement the network architecture that ensures the enclave is fully isolated from the corporate network while remaining accessible to authorized personnel through controlled, encrypted connections.
Endpoint Protection & Configuration Management
Every endpoint within your CMMC assessment boundary must be hardened, monitored, and managed to documented configuration baselines. We deploy Endpoint Detection and Response solutions that provide real-time threat detection, behavioral analysis, and automated response capabilities. We establish and enforce secure configuration baselines using CIS Benchmarks or DISA STIGs, ensuring that operating systems, applications, and services are configured according to security best practices. We implement automated vulnerability scanning with remediation workflows that ensure patches are applied within documented timeframes. Configuration management controls include change management procedures, baseline deviation alerting, and regular compliance scanning that detects unauthorized modifications. Application whitelisting or allowlisting prevents execution of unauthorized software. USB and removable media controls restrict data transfer pathways. All configurations are documented in your SSP and validated against your baseline standards.
Security Policy & Procedure Development
C3PAO assessors evaluate policies and procedures with the same rigor as technical controls. We develop a complete security policy library covering every NIST SP 800-171 control family: access control policy, awareness and training policy, audit and accountability policy, configuration management policy, identification and authentication policy, incident response plan, maintenance policy, media protection policy, personnel security policy, physical protection policy, risk assessment policy, security assessment policy, system and communications protection policy, and system and information integrity policy. Each policy is written to be specific, actionable, and enforceable — not generic templates. Procedures detail step-by-step instructions for implementing each policy requirement, including responsible roles, frequencies, tools, and documentation requirements. All policies undergo management review and approval, establishing the governance framework that assessors expect.
Incident Response Planning & Testing
Incident Response is a control family that frequently causes assessment findings because organizations lack formal, tested response procedures. We develop a comprehensive incident response plan that defines roles and responsibilities, establishes classification criteria for incident severity, documents step-by-step response procedures for common incident types (malware, data breach, unauthorized access, denial of service), specifies internal and external communication and notification requirements including DoD reporting obligations, identifies forensic evidence preservation procedures, and includes contact information for relevant authorities and incident response partners. Beyond documentation, we conduct tabletop exercises that walk your response team through realistic incident scenarios, testing their ability to execute the plan under pressure. These exercises identify procedural gaps, communication breakdowns, and training needs that can be addressed before the C3PAO assessment. Annual testing of your incident response plan is required, and we provide the facilitation and documentation that demonstrates this requirement is met.
Security Awareness Training & Personnel Readiness
NIST SP 800-171 requires security awareness training for all users, role-based training for personnel with security responsibilities, and practical exercises including simulated phishing campaigns. We implement comprehensive training programs that cover CUI handling procedures, phishing and social engineering recognition, password security and MFA usage, physical security awareness, incident reporting procedures, and acceptable use policies. Role-based training provides deeper instruction for system administrators, security officers, and CUI custodians. Simulated phishing campaigns test employee susceptibility and provide targeted remediation for individuals who fail. Training completion is tracked, documented, and reported to satisfy the evidence requirements that C3PAO assessors evaluate. Beyond the formal training program, we prepare key personnel for the C3PAO assessment interview process, ensuring they can articulate how security controls operate and how procedures are followed in daily operations.

Our CMMC Remediation Process

1

Remediation Planning & Prioritization

Using your gap assessment findings, we develop a detailed remediation project plan with prioritized phases, timelines, resource requirements, and dependencies. Critical gaps and high-risk deficiencies are addressed first. We identify quick wins that can improve your SPRS score immediately while planning longer-term implementations that require infrastructure changes or procurement.

2

Technical Implementation & Configuration

Our engineers deploy security infrastructure, configure controls, and validate implementations across your assessment boundary. Every deployment follows a plan-configure-test-document-validate cycle. We implement MFA, encryption, SIEM, EDR, network segmentation, vulnerability scanning, and all other technical controls required for your specific gap profile. Each implementation produces the objective evidence that C3PAO assessors will review.

3

Documentation & Training

We develop your complete security policy library, build your System Security Plan with detailed control descriptions, create your POA&M for any items requiring extended remediation, and deliver security awareness training to all personnel. Role-based training prepares IT staff and management for their specific responsibilities. Incident response tabletop exercises test your readiness to handle security events.

4

Validation & Assessment Readiness

Before scheduling your C3PAO engagement, we conduct a comprehensive readiness review that validates every control, confirms documentation accuracy, and tests evidence availability. Any remaining deficiencies are resolved. Your team is briefed on the assessment process and prepared for assessor interviews. You enter the C3PAO assessment with confidence that every requirement has been addressed and validated.

Why Choose Petronella Technology Group, Inc. for CMMC Remediation

We Build, Not Just Advise

Many CMMC consultants deliver gap assessment reports and leave you to implement fixes with your internal IT team. Petronella Technology Group, Inc. is different. Our engineers deploy the firewalls, configure the MFA, implement the encryption, set up the SIEM, and build the enclave. We do the work that closes gaps and produces the evidence that satisfies assessors, not just the recommendations.

Assessment-Aligned Implementation

Every control we implement is designed to satisfy the specific assessment methodology that C3PAO assessors use. We document implementations in your SSP with the level of detail assessors expect, produce the objective evidence they will request, and validate that each control operates as documented. Our remediation work is built backward from the assessment — ensuring everything we deploy will pass scrutiny.

Unified Technology & Policy Approach

CMMC compliance requires both technical controls and administrative documentation. Many remediation efforts fail because technical teams implement controls without proper documentation, or consultants develop policies that do not reflect actual implementations. Petronella Technology Group, Inc. coordinates both workstreams simultaneously, ensuring your policies describe what is actually implemented and your implementations satisfy what policies require.

CUI Enclave Specialization

Our CUI enclave solutions on FedRAMP-authorized platforms reduce your assessment boundary dramatically, lowering both remediation cost and timeline. Rather than hardening your entire corporate network to CMMC Level 2 standards, we build a purpose-designed secure environment with all 110 controls built in and isolate CUI processing within it. This approach is faster, less disruptive, and more cost-effective for most defense contractors.

Fixed-Scope Remediation Pricing

Based on your gap assessment findings, we provide detailed, fixed-price remediation proposals that specify exactly what will be implemented, documented, and validated. No hourly billing surprises, no scope creep, no vague deliverables. You know the total investment required to reach CMMC Level 2 certification before the remediation project begins.

Proven Certification Track Record

Our clients pass C3PAO assessments on the first attempt because our remediation work is thorough, our documentation is complete, and our validation process catches deficiencies before assessors do. With more than 20 years of cybersecurity experience serving the Research Triangle defense corridor, Petronella Technology Group, Inc. has the expertise and track record to deliver certification-ready environments on time and within budget.

CMMC Remediation FAQs

What does CMMC remediation include?
CMMC remediation encompasses every activity needed to close gaps identified in your assessment and achieve full compliance with the 110 NIST SP 800-171 requirements. This includes deploying technical security controls (MFA, encryption, SIEM, EDR, network segmentation, vulnerability management), developing administrative documentation (policies, procedures, SSP, POA&M, incident response plan), implementing physical security improvements, delivering security awareness training, and conducting validation testing to confirm all controls operate as documented. The scope of remediation is driven by your specific gap assessment findings — organizations with stronger existing security programs require less remediation than those starting from scratch.
How long does CMMC remediation take?
Remediation timelines depend on the number and complexity of gaps, your current security maturity, and the remediation approach. Organizations deploying CUI enclaves with minimal existing infrastructure gaps can complete remediation in 3-6 months. Organizations requiring extensive network redesign, comprehensive policy development, and significant technical control deployment typically need 6-12 months. Organizations starting from near-zero security maturity may require 12-18 months. Our remediation planning phase produces a detailed timeline with milestones, allowing you to plan your C3PAO assessment scheduling accordingly. Phased remediation allows high-priority gaps to be closed first while longer-term implementations proceed in parallel.
How much does CMMC remediation cost?
Total remediation cost depends on your gap assessment results, organizational size, assessment boundary scope, and chosen approach. Costs include security infrastructure procurement and licensing, engineering implementation services, policy and documentation development, training programs, and validation testing. For small organizations deploying CUI enclaves, total remediation investment (excluding the C3PAO assessment fee) typically ranges from $75,000 to $200,000. Mid-size organizations with broader scope may invest $200,000 to $400,000. Larger or more complex environments can exceed $500,000. Our fixed-scope pricing model eliminates billing surprises, and our remediation roadmap identifies potential cost-saving approaches such as CUI enclave deployment that reduces scope and implementation effort.
Do we need a gap assessment before remediation?
Yes. Remediation without a thorough gap assessment is like treating symptoms without a diagnosis — you risk investing in areas that are already compliant while missing critical deficiencies that will cause assessment failure. The gap assessment defines exactly what needs to be fixed, prioritizes gaps by risk, and provides the foundation for an accurate remediation plan and budget. If you have a recent gap assessment from another qualified firm, we can use those findings as input to our remediation planning. However, if the assessment is more than six months old or was conducted by a firm without CMMC-specific expertise, we recommend a fresh assessment to ensure remediation addresses your current state rather than an outdated snapshot.
Can you remediate while we continue operations?
Absolutely. Our remediation approach is designed to minimize operational disruption. We schedule high-impact changes during maintenance windows, deploy new security controls in parallel with existing systems before cutover, and phase implementations to avoid overwhelming your team with simultaneous changes. CUI enclave deployments are particularly non-disruptive because we build the secure environment alongside your existing infrastructure and migrate CUI processing to it once ready, rather than modifying your production systems. MFA rollouts are phased by department with user training preceding each phase. Network segmentation changes are planned carefully with rollback procedures in place. Your business continues operating throughout the remediation process.
What if our internal IT team wants to handle some remediation?
We frequently work in a collaborative model where your internal IT team handles certain remediation activities while Petronella Technology Group, Inc. manages others. Typically, organizations retain responsibility for activities their team is comfortable with — such as deploying patches, configuring MFA on familiar platforms, or updating documentation — while engaging us for specialized implementations like SIEM deployment, CUI enclave architecture, FIPS-validated encryption configuration, and SSP development. In this model, we provide detailed implementation specifications your team can follow, review their work to ensure it satisfies assessment requirements, and integrate their implementations into the overall SSP and evidence package. This hybrid approach can reduce cost while ensuring assessment-quality results.
What is a CUI enclave and how does it help remediation?
A CUI enclave is a purpose-built secure environment specifically designed for processing, storing, and transmitting Controlled Unclassified Information. By consolidating all CUI activities into an isolated enclave, you dramatically reduce your CMMC assessment boundary — only the enclave and its supporting infrastructure must satisfy all 110 NIST SP 800-171 requirements. Your general corporate network operates under less stringent requirements. This approach reduces remediation scope by 40-60%, lowers total implementation cost, compresses the timeline to certification, and provides a more secure environment than attempting to harden an entire corporate network. Our enclaves leverage FedRAMP-authorized cloud platforms with virtual desktop infrastructure, providing secure workspaces that employees access for CUI activities while using their normal corporate environment for non-CUI work.
Do you provide ongoing support after remediation is complete?
Yes. CMMC certification is valid for three years, and maintaining compliance requires continuous effort. Our post-remediation services include C3PAO assessment support during your formal evaluation, continuous monitoring of your security controls and compliance posture, quarterly compliance reviews and SSP updates, vulnerability scanning and patch management, annual security awareness training delivery, incident response support, and triennial reassessment preparation. Maintaining compliance is easier and less expensive than achieving it initially, but it requires ongoing attention to configuration drift, emerging vulnerabilities, personnel changes, and environment modifications. Our managed compliance service ensures your certification remains valid throughout the three-year period.

Close Your CMMC Gaps and Get Certified

Gaps do not close themselves, and C3PAO assessment dates do not move. Petronella Technology Group, Inc.'s CMMC remediation services deliver the technical controls, documentation, training, and validation needed to transform your gap assessment findings into a certification-ready environment. Let us build your path to CMMC Level 2.

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Petronella Technology Group, Inc. • 919-348-4912 • 5540 Centerview Dr., Suite 200, Raleigh, NC 27606 • BBB A+ Since 2003 • Founded 2002