Dallas-based Island raises $400M at a $6.4B valuation as AI security demand grows

Island, a Dallas-based startup that builds a security-focused enterprise browser, announced a $400 million funding round on Thursday at a $6.4 billion valuation. The round was led by Evolution Equity Partners and arrives as businesses rush to harden themselves against attacks carried out by artificial intelligence agents.

Where the money will go

Island plans to invest in research and development and to fund expansion into new markets, including Europe, Asia and the Middle East. CEO and co-founder Mike Fey told CNBC that the company also intends to grow its workforce from about 1,000 to 1,500 employees by the middle of next year.

“Every old control is breaking, so everything's up for grabs,” Fey said in an interview. “I've never seen anything like it. It's a very special time.”

The enterprise browser and its customers

Island is best known for an enterprise browser that lets companies monitor and control browser activity while employees collaborate. Browsers have become a common target for hackers hunting sensitive information, particularly in hybrid work setups. Among Island's customers are Pfizer, Chipotle, American Airlines and major banks. The company ranked No. 28 on this year's CNBC Disruptor 50 list.

“What we're focused on is enabling everything required for safe, secure, and productive capabilities for the future workforce,” Fey said.

Rogue AI agents and a crowded market

The round lands as the battle over AI regulation plays out in Washington and Silicon Valley, where lawmakers from both parties are debating a slowdown in development. At the same time, businesses are racing to deploy stronger defences against rogue AI agents, an issue that drew widespread attention after OpenAI's agent-orchestrated attack on Hugging Face, according to CNBC.

Competition is intensifying: the market includes pure-play incumbents such as Palo Alto Networks along with a long list of startups fighting for a share of the ballooning AI security market. Fey says the crowded field is complicating an already complex corporate tech stack and forcing companies to rethink their architecture. Island is betting that its broad platform and nimble, startup-like feel will appeal to businesses that want to raise productivity and simplify their toolset.

“It's really simple: Have a much better product,” Fey said. “That's your only option, and that's what we've done.”