SentinelOne

SentinelOne, Inc.

Company type	Public
Industry	Cybersecurity
Founded	2013 (2013)
Founder	Tomer Weingarten, Almog Cohen, Ehud ("Udi") Shamir
Headquarters	Mountain View, California , United States
Area served	Worldwide
Key people	Tomer Weingarten (CEO)
Products	AI-powered cybersecurity technologies for personal computers, IoT devices, and cloud environments
Number of employees	2,800 (2024)
Website	www.sentinelone.com

SentinelOne, Inc. is a cybersecurity firm based in the United States, publicly traded on the NYSE and headquartered in Mountain View, California. Established in 2013 by Tomer Weingarten, Almog Cohen, and Ehud ("Udi") Shamir, with Weingarten acting as CEO, the company currently employs around 2,800 staff members (2024) across its offices located in Mountain View, Boston, Prague, Tokyo, and Tel Aviv.

The company focuses on AI-powered cybersecurity technologies designed to protect personal computers, IoT devices, and cloud environments. Its solution is built upon a patented behavioral AI heuristic framework and has earned AV-TEST certification. SentinelOne has grown through several acquisitions such as Scalyr, Attivo Networks, PinnacleOne, PingSafe, Prompt Security, and Observo AI.

From a financial perspective, SentinelOne recorded revenues of $821 million in 2025 while incurring operating losses amounting to $329 million and net losses of $288 million. The firm's total assets were valued at $2.41 billion with shareholders’ equity at $1.67 billion. Its primary market focus is on enterprises seeking autonomous endpoint protection driven by machine learning technologies.

Funding

In June 2019, SentinelOne raised $120 million during its Series D funding round led by Insight Partners. Subsequently, in February 2020, the company secured an additional $200 million in Series E funding, which brought its valuation to roughly $1.1 billion. Later that same year, it completed a $267 million funding round that increased its valuation to $3.1 billion.

SentinelOne went public on the NYSE on June 30, 2021, generating $1.2 billion through its initial public offering. The company’s stock trades under the ticker symbol S, previously assigned to telecommunications firm Sprint before its 2020 merger with T-Mobile US.

Acquisitions

In February 2021, SentinelOne acquired the cloud-scale data analytics provider Scalyr for $155 million paid in cash and stock.

The following year in March 2022, the company purchased Attivo Networks, a firm specializing in identity detection and response, for $616.5 million in cash and equity.

In November 2023, SentinelOne bought cybersecurity advisory firm Krebs Stamos Group—founded by former CISA Director Chris Krebs and ex-Facebook Chief Security Officer Alex Stamos—which was subsequently renamed PinnacleOne Strategic Advisory Group. Chris Krebs stepped down in April 2025 amid political pressures.

SentinelOne agreed to acquire PingSafe for over $100 million in January 2024.

In August 2025, SentinelOne announced a definitive agreement to purchase Israeli startup Prompt Security for approximately $250 million in cash and shares. This acquisition strengthens the Singularity Platform by integrating generative AI security capabilities including real-time monitoring, automated defenses against prompt injection and data leakage threats, as well as AI-specific threat mitigation. The transaction was finalized during the third quarter of fiscal 2025.

In September 2025, SentinelOne revealed plans to acquire Observo AI—a platform native to AI that manages real-time telemetry data pipelines. Expected to close in Q3 2025 through a combination of cash and stock payments, this acquisition supports SentinelOne’s AI SIEM initiatives by reducing telemetry data volumes by up to 80% while preserving comprehensive log access, advancing their vision for fully autonomous security operations centers (SOCs).

Sponsorships

Beginning in 2021, SentinelOne took on the role of the official cybersecurity partner for the Aston Martin Cognizant F1 Team.