Ann Arbor businesses need IT that keeps people productive and security that stays active after hours—without the cost and complexity of building an internal SOC. Dominant Systems Corporation provides managed IT services and managed security for small and mid-sized organizations in the Ann Arbor area, delivering responsive support, practical planning, and a layered defense strategy built for today’s threat landscape.

Our managed IT services program is designed to provide ongoing maintenance and support for your computers and network for a predictable monthly fee. We combine proactive monitoring and patch management with fast help desk assistance and onsite service when needed. The result is fewer recurring issues, quicker resolution when something breaks, and clear accountability when it’s time to modernize. We serve Michigan-based organizations within a 50-mile radius of Ann Arbor, and we can support both on-premises and cloud-based environments.

We also help with projects that improve reliability and reduce risk—server and PC rollouts, network and security hardening, disaster recovery planning, and other IT initiatives that keep your business moving. When you need turnkey solutions, we can procure and implement technology from trusted vendors including HPE, Microsoft, Fortinet, Sophos, Veeam, Acronis, Proxmox, and more.

For cybersecurity, we take a layered approach and add “always-on” detection where it matters most. Our MDR (Managed Detect & Respond) service provides 24×7×365, human-led detection and response on endpoints—using telemetry and threat hunting to identify malware, persistence mechanisms, ransomware behaviors, and suspicious activity that traditional tools may miss. When something is confirmed, analysts validate the threat and provide clear incident reports with recommended remediation steps.

We pair MDR with IDTR (Identity Threat Detection & Response) to protect your cloud identity layer—especially Microsoft 365 and Entra ID—by monitoring sign-ins, session behavior, OAuth consent, mailbox abuse, and risky configuration changes. IDTR helps detect credential theft, token/session hijacking, impossible travel, MFA fatigue attacks, and malicious inbox rules, with guided response actions to contain issues quickly.

If you want dependable IT support and SOC-level security coverage tailored for an Ann Arbor-area SMB, contact Dominant Systems to review your environment, identify quick wins, and build a right-sized plan.