Co-Managed IT Services in Brookhaven, Georgia

Co-Managed IT Services in Brookhaven, GA: Augment Your Internal Team Without Replacing It

Brookhaven businesses along Peachtree Road and around Town Brookhaven increasingly run internal IT staff who handle day-to-day requests but lack the bandwidth or specialized tooling to own security operations, patch cycles, and compliance documentation simultaneously. Co-managed IT from COMNEXIA fills that gap precisely: your team keeps administrative control of systems they know well, and COMNEXIA provides the platform, the security stack, and the senior-level expertise that would cost significantly more to hire full-time in DeKalb County's competitive labor market.

COMNEXIA has operated out of Roswell, GA since 1991, serving metro Atlanta businesses including auto dealerships across the region. Co-managed IT is not a watered-down help desk contract. It is a defined division of responsibilities, documented in writing at onboarding, so your internal IT director and COMNEXIA engineers never duplicate work or leave a control unowned.

What Co-Managed IT Actually Delivers in Practice

The engagement starts with a documented onboarding that maps every endpoint, server, and network device in your Brookhaven environment into NinjaOne, the remote monitoring and management (RMM) platform COMNEXIA uses to maintain visibility across co-managed accounts. Your internal staff receives their own NinjaOne technician login, so they can see the same alert queue COMNEXIA sees and assign tickets to either party based on the pre-agreed responsibility matrix. Patch management runs on an automated schedule inside NinjaOne: third-party application patches (Chrome, Adobe, Java, and others) deploy within 14 days of release to each tested patch group, and Windows quality updates follow the same cadence after a staged pilot group validates stability.

On the security side, COMNEXIA deploys SentinelOne EDR to every managed endpoint. SentinelOne's Singularity platform provides behavioral AI detection that does not depend on signature updates, which matters when your internal team cannot monitor an alert console at 2 a.m. Threat response is handled by COMNEXIA under a defined incident escalation procedure: contain, isolate, preserve forensic data, then notify your IT lead before remediation changes anything in production. Microsoft Entra ID conditional access policies enforce MFA on every cloud login and block authentication attempts from non-compliant devices, a control your internal team can configure through the shared admin tenant COMNEXIA provisions during onboarding.

Co-Managed IT for Brookhaven Auto Dealerships

Dealerships operating CDK Global, Reynolds and Reynolds, or Dealertrack DMS platforms carry a specific compliance burden that general co-managed IT vendors rarely understand. The FTC Safeguards Rule (16 CFR Part 314), updated with technical requirements effective June 2023, requires dealerships to implement access controls, encryption, continuous monitoring, and a written information security program (WISP). COMNEXIA has worked with dealerships across metro Atlanta on exactly these controls.

In a co-managed arrangement, a dealership's internal IT staff typically owns DMS user provisioning and in-lane hardware support, while COMNEXIA owns the security monitoring layer, Safeguards Rule documentation, annual risk assessment, and patch compliance reporting. CDK Global and Reynolds and Reynolds environments run on dealer-specific network segments that require careful VLAN configuration to prevent lateral movement from a compromised endpoint to DMS data. COMNEXIA engineers document that segmentation in your network diagram and test it during the onboarding assessment, rather than assuming the prior IT vendor completed it correctly.

What Your Internal IT Team Gets to Stop Worrying About

• Patch compliance reporting: NinjaOne generates monthly endpoint patch status reports that your team can send directly to leadership or auditors without manual spreadsheet work.
• EDR alert triage: SentinelOne detections route to COMNEXIA's queue first, so your internal staff are not pulled away from project work by every behavioral alert.
• Conditional access policy drift: COMNEXIA reviews Microsoft Entra ID conditional access policies quarterly and updates named locations, trusted device lists, and sign-in risk thresholds as your environment changes.
• After-hours incident response: COMNEXIA handles containment on confirmed incidents and calls your IT lead rather than requiring your team to be on-call every night.
• Compliance documentation: For dealerships under FTC Safeguards Rule or any Brookhaven business preparing for a cyber insurance audit, COMNEXIA maintains the WISP, risk register, and vendor inventory required by underwriters.

How the Responsibility Split Is Documented

At onboarding, COMNEXIA produces a Responsibility Assignment Matrix (RAM) that lists every operational area, names the primary owner (your team or COMNEXIA), and identifies the escalation path. This document is reviewed every six months and updated when your internal headcount or technology stack changes. Monthly reporting from NinjaOne covers endpoint health, patch compliance percentage by device group, and open ticket aging, giving your IT director concrete numbers for board or ownership reporting without pulling the data manually.

Talk to COMNEXIA About Co-Managed IT in Brookhaven

If your Brookhaven or broader DeKalb County business has internal IT staff who are capable but stretched thin on security, compliance, or after-hours coverage, co-managed IT from COMNEXIA is a concrete fix with a defined scope. Call COMNEXIA at (877) 600-6550 to schedule a scoping call where an engineer will review your current environment, identify gaps in patch coverage or EDR deployment, and draft a responsibility matrix before any contract is signed.