Managed IT Services in New London, CT

IT built for southeastern Connecticut’s defense, maritime, and commercial businesses, including CMMC compliance support for DoD contractors.

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Southeastern Connecticut’s economy is anchored by one of the most significant defense and maritime corridors in the country. Naval Submarine Base New London, Electric Boat in Groton, and the constellation of engineering firms, subcontractors, and professional services companies that support DoD programs have made New London County a region where cybersecurity isn’t just a best practice. For many businesses here, it’s a contractual requirement tied directly to their ability to hold federal work.

SII works with businesses across the Greater New London area to build IT programs that address the specific demands of this market: CMMC compliance for defense contractors handling Controlled Unclassified Information, cybersecurity controls that satisfy prime contractor supply chain requirements, and the reliable operational infrastructure that healthcare organizations, maritime services companies, and commercial businesses need to run effectively every day.

Whether your organization holds a DoD contract and needs to meet CMMC Level 1 or Level 2 requirements, supports the defense industrial base as a subcontractor navigating prime contractor security assessments, or operates in healthcare, maritime services, higher education, or commercial sectors across New London County, SII builds your IT environment around what your specific situation actually demands.

The Cost of Getting IT Wrong in a Defense-Adjacent Market

For New London County’s defense contractors and subcontractors, the stakes of inadequate IT extend well beyond operational disruption. A failed CMMC assessment, an uncontrolled CUI spillage, or a cybersecurity incident that triggers DoD reporting requirements can put active contracts at risk and disqualify a business from future work before a single system is restored.

CMMC assessment failures that result in loss of DoD contract eligibility for prime contractors and subcontractors alike
Controlled Unclassified Information spillage events that trigger mandatory reporting to the DoD and potential contract termination
Prime contractor security questionnaires that expose inadequate controls in the supply chain, removing subcontractors from consideration
Cyber incidents that disrupt engineering, production, or program support work and create schedule delays with federal program implications
Healthcare and commercial businesses in the same talent market competing for IT resources against well-funded defense programs

SII builds IT programs for New London businesses that treat federal compliance requirements and operational security as integrated objectives, not separate initiatives managed by separate teams.

Why New London Businesses Choose Managed IT Services

CMMC Compliance Built Into Your IT Program

Meeting CMMC Level 1 or Level 2 requirements isn’t a one-time project. It’s an ongoing state of your IT environment. We design and manage systems that satisfy the NIST SP 800-171 controls underlying CMMC Level 2, maintain the documentation your assessor will review, and keep your environment compliant as requirements evolve.

CUI Handling That Satisfies DoD Expectations

Controlled Unclassified Information requires specific technical controls: access restrictions, audit logging, encrypted transmission, and documented incident response procedures. We implement those controls as standard practice for New London defense clients, so handling CUI doesn’t create a compliance gap every time a new contract arrives.

Supply Chain Security That Prime Contractors Accept

When a prime contractor sends a security questionnaire or requests evidence of your cybersecurity posture, we give you the documentation to respond with confidence. We maintain the policies, access logs, and system security plans that satisfy supply chain security reviews without a fire drill.

IT for Healthcare and Commercial Businesses in a Defense Market

New London’s healthcare organizations, maritime services companies, and commercial businesses operate in the same labor and technology market as the defense sector. We help non-defense organizations build IT programs that are competitive and well-supported without requiring defense-level budgets.

On-Site Engineering for Southeastern Connecticut

New London County is a long drive from most Connecticut MSPs. SII reaches the New London area and provides on-site engineering for situations that can’t be resolved remotely, without the wait times or travel fees that come with providers based exclusively in Hartford or New Haven.

Security Controls That Address Real Threats to This Region

Defense and maritime organizations in southeastern Connecticut are targets for nation-state cyber actors and industrial espionage, not just opportunistic ransomware. We build security programs appropriate to the actual threat environment our New London clients operate in.

What Makes SII Different From Standard IT Support in New London?

Defense contractors in New London plan technology around contract cycles, program timelines, and CMMC assessment schedules, not calendar years. We build IT roadmaps that align infrastructure investments and security maturity milestones to those rhythms, so you’re not scrambling to meet a compliance requirement in the middle of a contract renewal or facing an assessment with outdated documentation.

In a DoD-adjacent environment, a recurring IT problem isn’t just an operational inconvenience. It can represent an unresolved vulnerability that shows up in an assessment finding or a supply chain security review. We investigate and eliminate the underlying cause of recurring issues, document what we found and what we fixed, and ensure that the same weakness doesn’t reappear in your next audit cycle.

DFARS clause 252.204-7012 requires DoD contractors to implement the 110 security controls in NIST SP 800-171 and report cyber incidents within 72 hours. CMMC Level 2 certification requires a third-party assessment against those same controls. We know these requirements in detail, stay current as DoD updates the CMMC program, and build IT environments in New London that satisfy them as a function of ongoing management, not a pre-assessment sprint.

In New London’s defense contracting community, the person responsible for cybersecurity is often also the contracts officer, the program manager, or the business owner. They need to be able to attest to their organization’s cybersecurity posture in contract submissions, respond to DCSA inquiries, and explain their security program to prime contractor representatives. Our reviews give that audience the clear, documented picture they need to fulfill those responsibilities with confidence.

Our Managed IT Services in New London, CT

24/7 Infrastructure Monitoring

Continuous monitoring of the servers, workstations, and network systems that New London’s defense contractors, maritime organizations, and healthcare providers depend on, with logging and alerting configured to support CMMC and DFARS incident detection and reporting requirements.

Advanced Cybersecurity Controls

The full suite of technical controls required by NIST SP 800-171 and CMMC Level 2: access control enforcement, audit and accountability logging, configuration management, identification and authentication, incident response, media protection, risk assessment, and system and communications protection, implemented and maintained as ongoing management.

Cloud Strategy & Management

Microsoft 365 Government (GCC) and Azure Government configurations for defense organizations with CUI handling requirements, alongside standard Microsoft 365 and cloud infrastructure for non-defense businesses across New London County, with appropriate data boundary and access controls for each environment.

Network & Connectivity Governance

Segmented network architecture that separates CUI-handling systems from general office networks, with firewall governance, encrypted remote access for personnel working across facilities, and connectivity solutions for maritime and coastal operations where standard infrastructure can be unreliable.

Business Application Support

Implementation and management of the defense program management platforms, engineering collaboration tools, ERP systems, and productivity applications that New London’s defense contractors and commercial businesses operate on, with attention to software supply chain security and approved product lists where applicable.

Remote Workforce Enablement

Secure, access-controlled remote work infrastructure for defense personnel operating across multiple cleared facilities, field engineers supporting naval programs, and commercial and healthcare staff working from home, built to satisfy the access control and audit requirements of your compliance framework.

VoIP & Unified Communications

Business communications infrastructure for New London’s defense contractors, maritime operators, and healthcare practices, with configurations appropriate to the security requirements of each environment and reliable connectivity for organizations operating in southeastern Connecticut’s coastal geography.

Data Backup & Disaster Recovery

Automated, encrypted backup with retention schedules and incident reporting capabilities aligned to DFARS 252.204-7012 requirements, including rapid recovery procedures and the documentation of backup and recovery processes that CMMC assessors review as part of the media protection and incident response control families.

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Our Managed IT Operating Model

Assess

We conduct a gap assessment of your current environment against the NIST SP 800-171 control families, identify deficiencies, and produce a System Security Plan (SSP) baseline and Plan of Action and Milestones (POA&M) that document where you stand and what needs to be addressed before your next CMMC assessment or contract requirement.

Strategize

We build a remediation roadmap prioritized by CMMC impact: controls that create immediate assessment risk are addressed first, followed by controls with longer implementation timelines, all sequenced against your contract schedule and any upcoming assessment dates your organization is working toward.

Stabilize

We implement the highest-priority technical controls, deploy monitoring and logging infrastructure that satisfies CMMC audit and accountability requirements, establish compliant access controls for CUI systems, and bring your environment to the baseline required for your applicable CMMC level.

Protect & Manage

Ongoing management of your full IT environment including 24/7 monitoring, patch management, vulnerability remediation, access control maintenance, and the continuous monitoring activities that CMMC requires organizations to sustain between formal assessments.

Optimize & Review

Regular reviews covering IT performance, open POA&M items, emerging CMMC program updates, and any changes to your contract portfolio that affect your compliance scope, structured to support the documentation your contracts officer and prime contractor relationships require on an ongoing basis.

Serving Businesses Across the Greater New London Area

SII provides managed IT services throughout southeastern Connecticut, with remote management that covers your environment around the clock and on-site engineering available across New London County for situations that require a physical presence. We regularly support organizations in:

New London, Groton, and the defense and maritime corridor along the Thames River, including Electric Boat subcontractors, defense engineering firms, and naval program support organizations
Mystic, Waterford, and the coastal communities of New London County for maritime services, hospitality, and commercial businesses
Norwich, Montville, and the inland New London County communities for manufacturing, healthcare, and professional services organizations

Southeastern Connecticut is underserved by managed IT providers with genuine defense compliance expertise. Most MSPs in the region offer general IT support but lack deep familiarity with CMMC, DFARS, and the specific security requirements of the DoD supply chain. SII brings that expertise to New London County businesses alongside the operational IT capabilities that healthcare organizations, commercial businesses, and maritime operators need.

Schedule a free IT assessment and find out where your organization stands against your applicable compliance requirements and what a purpose-built IT program would look like.

FAQs

What is the difference between CMMC Level 1 and Level 2, and how does SII support both?

CMMC Level 1 applies to organizations that handle Federal Contract Information (FCI) but not Controlled Unclassified Information. It requires annual self-assessment against 17 basic cybersecurity practices from NIST SP 800-171. CMMC Level 2 applies to organizations handling CUI and requires implementation of all 110 controls in NIST SP 800-171, with most Level 2 contractors required to undergo a third-party assessment by a C3PAO. SII supports Level 1 organizations with the technical controls and self-assessment documentation the program requires, and Level 2 organizations with the full control implementation, System Security Plan development, POA&M management, and pre-assessment preparation that a C3PAO assessment demands.

What does a CMMC assessment actually involve, and how can SII help us prepare?

A CMMC Level 2 assessment conducted by a Certified Third-Party Assessment Organization (C3PAO) reviews evidence that your organization has implemented and is actively maintaining each of the 110 NIST SP 800-171 controls. Assessors examine your System Security Plan, your Plan of Action and Milestones, configuration documentation, access control records, audit logs, and technical evidence from your systems. SII prepares New London contractors for assessment by implementing the required controls, maintaining the documentation assessors request, and conducting internal reviews against the assessment criteria before your formal assessment date.

How does SII handle the DFARS 252.204-7012 requirement to report cyber incidents to DoD within 72 hours?

DFARS 252.204-7012 requires contractors to report cyber incidents affecting covered contractor information systems to DoD within 72 hours of discovery. We support this obligation by configuring monitoring and alerting that detects incidents quickly, maintaining the incident response documentation the regulation requires, and working with your contracts team to prepare and submit reports to the DoD Cyber Crime Center (DC3) within the required window. We also preserve the network and system images that DFARS requires contractors to make available to DoD following an incident.

We don't hold DoD contracts directly, but our customers include defense prime contractors. Do we need CMMC compliance?

Potentially, yes. If your organization receives, processes, stores, or transmits CUI as part of work for a prime contractor, you are likely subject to the same CMMC requirements as the prime. Prime contractors are increasingly flowing down CMMC requirements to their supply chain through contract clauses, and DCSA has made clear that subcontractors handling CUI must meet the applicable CMMC level. We assess your specific situation, review the contracts and data flows involved, and advise on the compliance scope that applies to your organization before recommending an implementation approach.

Our New London organization is in healthcare, not defense. Can SII still support us?

Yes. While defense compliance is the defining IT story in New London County, SII supports organizations across the full range of sectors present in southeastern Connecticut. For healthcare organizations affiliated with Lawrence + Memorial Hospital or operating independently across New London County, we build HIPAA-aligned IT environments with the same rigor we apply to defense compliance. For maritime services, commercial, and professional services businesses, we provide the operational IT infrastructure and cybersecurity that keeps your organization running without requiring a defense-grade budget.

Your Next Contract Depends on Your Cybersecurity Posture.

Get a free IT assessment for your New London area organization. We’ll evaluate your environment against your applicable compliance requirements, identify the gaps that put your contracts at risk, and build a remediation plan with clear timelines and costs.