Companies owned by SentinelOne

SentinelOne owns 2 companies in the directory. It has its own profile here too. We have 6 of its acquisitions on record, each with its source.

The 2 companies it owns

Company	Category	Based in	Founded
Prompt Security Prompt Security provides an AI security platform that protects enterprise AI usage, applications, and agents.	AI and LLM security	Tel Aviv, Israel	2023
O Observo AI Observo AI built an AI-native security data pipeline that filtered and enriched telemetry before it reached the SIEM.	Security data pipelines	Newark, United States	2022

Acquisitions by SentinelOne

Date	Deal	Amount	Source
8 Sept 2025	SentinelOne acquired Observo AISource for SentinelOne acquired Observo AI, opens in a new tab	$225m	Source for SentinelOne acquired Observo AI, opens in a new tab
August 2025	SentinelOne acquired Prompt SecuritySource for SentinelOne acquired Prompt Security, opens in a new tab	$250m	Source for SentinelOne acquired Prompt Security, opens in a new tab
January 2024	SentinelOne acquired PingSafeSource for SentinelOne acquired PingSafe, opens in a new tab	Undisclosed	Source for SentinelOne acquired PingSafe, opens in a new tab
November 2023	SentinelOne acquired Krebs Stamos GroupSource for SentinelOne acquired Krebs Stamos Group, opens in a new tab	Undisclosed	Source for SentinelOne acquired Krebs Stamos Group, opens in a new tab
March 2022	SentinelOne acquired Attivo NetworksSource for SentinelOne acquired Attivo Networks, opens in a new tab	$616.5m	Source for SentinelOne acquired Attivo Networks, opens in a new tab
February 2021	SentinelOne acquired ScalyrSource for SentinelOne acquired Scalyr, opens in a new tab	$155m	Source for SentinelOne acquired Scalyr, opens in a new tab

The record covers deals from 2020 onwards. Most deals before August 2026 come from monthly M&A roundups and are dated to the month. Since August 2026 we add deals from the news as they are reported. Smaller deals may be missing. Amounts are in US dollars.