Your IT Company in Brookhaven, Georgia

Looking for a reliable IT company in Brookhaven? COMNEXIA has been solving technology challenges for Georgia businesses since 1991 — and we're right here in metro Atlanta.

35 Years in Business
Hundreds of Satisfied Clients
Atlanta-Based Since 1991
24/7 Emergency Support

Last updated: September 22, 2026

Your Trusted IT Company in Brookhaven

IT Company Serving Brookhaven, GA Businesses Since 1991

COMNEXIA is a security-first managed IT services provider headquartered in Roswell, GA, with 35 years of hands-on experience supporting businesses across DeKalb County and the broader Atlanta metro. For Brookhaven companies operating along Peachtree Road, Dresden Drive, or the Town Brookhaven corridor, that means a local IT partner who understands the region's commercial density, its mix of professional services firms and automotive dealerships, and the compliance obligations that come with both.

What "IT Company" Actually Means for Your Brookhaven Business

Hiring an IT company is not the same as having someone available to reboot a server. A managed IT engagement with COMNEXIA begins with a documented network discovery using ConnectWise Automate, which inventories every endpoint, switch, and firewall before onboarding concludes. That baseline lets engineers set patch-management policies that push Microsoft cumulative updates and third-party application patches on a defined weekly schedule, with failed-patch alerts surfaced in the RMM dashboard the same day. Every device gets SentinelOne EDR deployed at the agent level, giving your team behavioral threat detection that does not depend on signature updates.

Security-First Managed IT: The Controls COMNEXIA Configures

Security is not a separate product add-on. It is the starting point for every Brookhaven client deployment. Specific controls COMNEXIA implements include:

  • Microsoft Entra ID conditional access policies that block authentication from non-compliant devices and enforce multi-factor authentication for every Microsoft 365 account, including shared mailboxes
  • SentinelOne EDR on all Windows and macOS endpoints, configured to autonomous-protect mode so threats are quarantined without waiting for a technician to respond
  • DNS filtering through a dedicated resolver that blocks known-malicious domains before a connection is established, reducing phishing exposure at the network layer
  • Encrypted, air-gapped backup to an immutable cloud target, with recovery point objectives documented in writing during onboarding
  • Monthly patch-compliance reports delivered in a standardized format, listing every device, its current OS build, and any outstanding critical CVEs

Help Desk and Ticketing for DeKalb County Offices

Every support request from a Brookhaven client enters a ConnectWise Manage ticketing queue with priority classification assigned at intake. Tickets are categorized by impact (single user, department, site-wide) so technicians address a down server before they address a printer jam. Users receive a ticket number by email within minutes of submission, and open tickets are visible in a client portal. Escalation paths to senior network engineers are defined in the service agreement, not improvised on the fly.

IT Services for Brookhaven-Area Auto Dealerships

Auto dealerships in the greater Atlanta area face IT requirements that general-purpose IT providers frequently miss. COMNEXIA has direct experience supporting dealership management systems including CDK Global, Reynolds and Reynolds, and Dealertrack, which each carry specific network segmentation and port requirements that must be configured correctly at the firewall level. A misconfigured VLAN between the DMS server and the finance office is not a minor inconvenience; it creates a compliance gap under the FTC Safeguards Rule, which requires dealerships to maintain a written information security program, control access to customer financial data, and monitor for unauthorized access to covered information.

COMNEXIA maps Safeguards Rule requirements to concrete technical controls: Microsoft Entra ID access reviews for personnel with access to non-public personal information, network segmentation separating the DMS from guest Wi-Fi and service-bay terminals, and encrypted transmission of customer records between the dealership and lenders. These are configurations, not promises.

Onboarding Process for Brookhaven Clients

COMNEXIA follows a documented onboarding sequence for every new client regardless of size. Week one covers network discovery and asset tagging. Week two covers endpoint standardization, which means SentinelOne deployment, ConnectWise Automate agent installation, and Entra ID policy enforcement. Week three addresses backup verification, with a confirmed test restore before the client is considered fully onboarded. By day 30, the client receives a written network map and a baseline security posture report they can present to auditors, insurers, or a board of directors.

Why Brookhaven Businesses Choose a Local Atlanta-Area IT Partner

Remote-only IT companies cannot walk a server room in the Perimeter Center office parks or sit beside a service manager at a Buford Highway dealership when a CDK integration fails before month-end. COMNEXIA technicians operate within driving distance of Brookhaven, and the company has maintained continuity of ownership and staff in the Atlanta market since 1991, which means engineers who understand the region's infrastructure rather than technicians reading a city name off a ticket.

Get a Straightforward IT Assessment for Your Brookhaven Business

If your current IT setup lacks documented patch compliance, Entra ID conditional access, or a tested backup recovery process, those are specific gaps COMNEXIA can identify and close. Call (877) 600-6550 to schedule a no-obligation network assessment. You will leave with a written inventory of your current environment and a prioritized list of security gaps, regardless of whether you engage COMNEXIA for ongoing service.

Why Brookhaven Businesses Choose COMNEXIA

COMNEXIA has supported businesses along the Peachtree corridor since 1991 — years before Brookhaven even incorporated as a city. Our proximity in Roswell means rapid on-site response, and our deep experience with professional services and healthcare IT makes us the natural fit for Brookhaven's business mix.

1991
Founded
Hundreds
Businesses Served
35
Years of Trust
Local
Roswell, GA HQ

IT Company Serving Near Brookhaven

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