SentinelOne Inc., a cybersecurity unicorn that counts four of the Fortune 10 as customers, today said that it has closed a $267 million late-stage round of funding led by Tiger Global Management.

After the Series F round, SentinelOne is now worth more than $3 billion, triple the valuation it received after its previous nine-figure raise in February.

Seven-year-old SentinelOne provides an endpoint protection platform for securing the employee devices and servers connected to a company’s network, as well as other technology assets such as “internet of things” gadgets. The platform looks for threats with the help of lightweight software agents it installs on the systems it protects.

SentinelOne’s software agents have built-in artificial intelligence models that can detect a variety of malware types. The startup says its AI technology can catch, among others things, ransomware, weaponized documents and so-called fileless attacks that exploit legitimate programs installed on a user’s machine for malicious purposes. SentinelOne’s software agents can block threats even if the devices on which they’re installed don’t have steady internet access.

When SentinelOne flags a malware infection, administrators can neutralize it through a point-and-click management console. The platform provides the ability to revert changes made by a malicious program and restore an infected device to its original state with a single click, according to SentinelOne.

The startup says that detection accuracy is one of the areas where it differentiates itself from competitors. Earlier this year, SentinelOne participated in an evaluation of cybersecurity providers conducted by Mitre and detected the most hacking tactics and techniques while logging the fewest misses. Mitre is a federally funded research organization that maintains the MITRE ATT&CK database of hacker tactics, which is heavily used in the cybersecurity industry.

SentinelOne’s feature set has helped it win more than 3,500 customers worldwide. In February, after its previous funding round, the startup disclosed that annual recurring revenues had more than doubled over the preceding year, while bookings from Fortune 500 companies surged 140%.

“The demand for flexible technology that can stand alone — without requiring services and staff — will only continue to increase as the threat landscape evolves,” said SentinelOne Chief Operating Officer Nicholas Warner.  “Our ease of deployment and autonomous remediation has made us the go-to solution to replace other next-gen products at scale.”

The startup has raised more than $430 million in funding to date, most of it over the last 18 months. Besides Tiger Global Management, SentinelOne counts Sequoia Capital Global Equities, Insight Partners, Third Point Ventures and other venture capital firms among its backers. 

Photo: SentinelOne