The evolution of SentinelOne: from its origins to AI-assisted cybersecurity

SentinelOne was founded in 2013 by a team including Tomer Weingarten to build endpoint security around behavioural detection and automation rather than signature-based antivirus alone.

How SentinelOne developed

The company expanded from endpoint protection into detection and response, cloud security, identity protection and security data analytics. It went public in 2021 during a period of rapid investor interest in cloud-native cybersecurity.

SentinelOne in 2026

By 2026, SentinelOne sold an AI-assisted security platform designed to detect, investigate and respond to threats across endpoints, cloud workloads and enterprise data.

Its rise reflects the cybersecurity industry’s move from standalone antivirus products toward continuously monitored platforms that combine telemetry, automation and incident response.

Information was checked against public company material, regulatory filings and reputable independent reporting where available, using sources accessible on 18 September 2026.