Securonix

Securonix is a security operations platform vendor with roots in user and entity behavior analytics, best known for its cloud-native Unified Defense SIEM that combines SIEM, UEBA, SOAR, and threat intelligence in a single platform. Founded in 2008, the company received a growth investment of more than $1 billion led by Vista Equity Partners in 2022 and acquired threat intelligence vendor ThreatQuotient in June 2025. Securonix serves enterprise security teams and managed security service providers worldwide and was named a Leader in the 2025 Gartner Magic Quadrant for SIEM for the sixth consecutive time.