Ann Arbor businesses run on technology—email, files, line-of-business apps, Wi-Fi, phones, and cloud services that have to work every day. When systems slow down or security is uncertain, productivity drops and risk rises fast. Dominant Systems Corporation provides managed IT services and managed security for Ann Arbor-area small and mid-sized organizations that want dependable support, clear accountability, and protection that stays active after hours.

Our managed IT services program, CompleteCARE, is built to replace reactive “break/fix” with a consistent plan. We provide proactive monitoring, patch management, responsive help desk support, and onsite service when needed—so problems get resolved quickly and recurring issues are eliminated at the root. CompleteCARE is offered to Michigan-based organizations within a 50-mile radius of Ann Arbor, which means you get local support backed by a team that can act fast when it matters.

We also help Ann Arbor businesses modernize without disruption. That includes PC and server refreshes, network upgrades, wireless improvements, secure remote access, and project work ranging from troubleshooting to full rollouts. If you need turnkey solutions, we can procure and implement hardware and software through authorized dealership relationships and deep experience across platforms—supporting on-premises and cloud environments, including Windows Server, Hyper-V, Proxmox, UNIX/Linux, and VMware.

Security is built into everything we do, and we focus on the attack paths that most often impact SMBs: the perimeter, endpoints, and identity. At the network edge, next-generation firewalls help reduce exposure to internet-borne threats and enforce secure access policies. On endpoints—laptops, desktops, and servers—modern protection helps stop phishing-driven malware and ransomware that can slip past perimeter defenses. When you need a higher security posture, our managed security approach is designed to deliver the right layers without adding chaos.

To go beyond “tools-only” security, we add 24×7×365 coverage through MDR (Managed Detect & Respond) and ITDR/IDTR (Identity Threat Detection & Response). MDR brings human-led monitoring and response on endpoints, using telemetry and threat hunting to spot behaviors associated with ransomware, persistence, and suspicious activity that basic alerting can miss. When something is confirmed, you receive clear guidance on containment and remediation—so you can make fast decisions instead of guessing.

Identity is now a primary target for attackers, especially in Microsoft 365. ITDR/IDTR focuses on detecting and responding to identity-based threats in cloud environments (including Entra ID), monitoring sign-ins, session behavior, risky configuration changes, and mailbox abuse patterns that can signal account takeover, malicious inbox rules, or token/session misuse. Together, MDR + ITDR help you reduce dwell time and limit the blast radius of identity-driven incidents.

If you want reliable IT operations and SOC-level security coverage for your Ann Arbor business—without building a large internal team—contact Dominant Systems to review your environment, identify quick wins, and map a right-sized plan.