Securonix

Securonix sells a cloud-native Unified Defense SIEM that combines SIEM, UEBA, SOAR and threat intelligence. In 2026 it added agentic AI features, including Sam, an AI SOC analyst, and Agent and Entity Behavior Analytics to monitor enterprise AI agents. Customers are enterprises, especially in financial services and healthcare, and managed security service providers. It is sold as a B2B subscription. It raised about $1B in a February 2022 round led by Vista Equity Partners, with Eight Roads and Volition Capital among the investors. It has been named a Leader in the Gartner Magic Quadrant for SIEM six times and made the 2026 Fortune Future 120.