CrossRealms International

CrossRealms International is an employee-owned, security-first cybersecurity and technology company headquartered in Chicago. For over two decades, we have helped organizations build, operate, and secure the technology environments their businesses depend on.

Our expertise spans cybersecurity, modern security operations, threat intelligence, cloud, infrastructure, networking, and security engineering, with teams across North America, Europe, the Middle East and North Africa (MENA), and India.

At the center of our capabilities is the Modern Security Operations Center (MSOC), combining 24x7 experienced security analysts, continuous monitoring, automation, AI-assisted analysis, managed detection and response, and security investigation.

Automation can monitor systems, correlate events, identify patterns, and process enormous amounts of data — but monitoring is not the same as understanding. CrossRealms combines technology with experienced analysts who investigate ambiguity, apply organizational context, challenge assumptions, and determine what security events actually matter.

This operating model brings together technology, intelligence, people, and engineering, rather than treating cybersecurity as a collection of disconnected products. Capabilities include Splunk managed services, Sophos MDR, endpoint and network security, cloud security, zero trust architecture, and managed IT services, with support for HIPAA, SOC 2, and ISO 27001 compliance. CrossRealms is also a Microsoft Solutions Partner for Data & AI, Infrastructure, and Security.

We work with organizations in financial services, healthcare, professional services, regulated industries, and complex distributed environments that have outgrown point solutions and need a more mature approach to security and technology operations.

CrossRealms helps organizations make better security decisions — not just generate more alerts.