At Critical Start, our mission is clear and essential: stop business disruption by preventing breaches. Through our award-winning Managed Detection and Response (MDR) services, we provide 24x7x365 monitoring, investigation, and response. By integrating proactive security intelligence with human-driven expertise, we empower organizations to detect and mitigate threats while addressing critical vulnerabilities—ensuring a stronger, more secure future.
To be the most effective service provider in delivering the greatest risk reduction of a breach. We envision a world where MDR not only detects and mitigates threats but also proactively addresses vulnerabilities, enabling organizations to build secure and resilient digital environments.
In 2012, three security experts who had led incident response and threat hunting at Fortune 500 companies recognized a gap in the market: managed detection and response was becoming a commodity service, packaged identically for every customer regardless of industry, threat landscape, or regulatory environment. Generic playbooks and offshore analysts were not a fit for security-conscious enterprises.
Today, we protect financial services firms, healthcare systems, manufacturers, and utilities across 7 continents. Every customer is assigned a dedicated security team trained on their sector. Every incident response event is audit-ready from day one.

Meet the people behind the service.
Your demo includes a conversation with a security expert who can walk you through how our SOC operates, what our analysts see in environments like yours, and how our SLAs work in practice.
No asterisks.