A leader in security operations that offers managed detection and response (MDR), remediation, phishing, vulnerability prioritization, and threat hunting.



Herndon, Virginia, United States


David Merkel, Yanek Korff and Justin Bajko



Main Co-Investors

Capital G, Paladin Capital, Scale Venture Partners, Index Ventures, Greycroft, Battery Ventures, NEA, Lightbank

Expel helps organizations of all shapes and sizes manage business risk. Its detection and response technology, people, and expertise enable it to provide businesses with security that makes sense. Expel delivers clear answers and advice to quickly and proactively identify and remediate vulnerabilities and threats. Fueled by Expel Workbench™, its leading security operations platform, Expel’s managed security products transparently thwart attackers and breaches. Expel gives organizations the confidence that their businesses are secure, their security investments are working, and their teams are focused on business priorities, instead of alerts.