Island hits $6.4B valuation on $400M round as AI attacks drive security spending
What's the deal? Dallas-based browser security startup Island has raised $400 million in a late-stage round at US$4.14B valuation, the company announced in September 2026. Evolution Equity PartnersDealroom has a profile for this one. Try Dealroom → led the round.
What does Island do? The company sells an enterprise browser that lets businesses monitor and control browser activity as employees work. Browsers have become a frequent target for hackers seeking sensitive data, particularly in hybrid work environments.
What's the money for? Island plans to spend on research and development and expand into Europe, Asia, and the Middle East. Chief executive officer and co-founder Mike Fey said the company aims to grow its workforce from 1,000 to 1,500 employees by mid-2027.
Why now? The round lands as businesses race to defend against rogue AI agents and as lawmakers in Washington debate AI regulation. "Every old control is breaking, so everything's up for grabs," Fey told CNBC. "I've never seen anything like it. It's a very special time."
What could go wrong? Island faces a crowded field of incumbents and startups chasing the growing AI security market. Fey is betting a broad platform and startup feel will win customers looking to simplify their toolset: "It's really simple: Have a much better product."
The signal: The raise ranks in the 99th percentile of late-stage security rounds tied to Israel over the past four years, based on a sample of 52 deals. As AI-driven threats mount, capital is flooding toward firms promising to secure the future workforce.
Read more: CNBC
Image credit: Generated with Gemini
