Island and Cyera each raise $400 million

This week's biggest rounds show where late-stage venture dollars are concentrating. Island and Cyera both took $400 million, and the same lead investor, Evolution Equity Partners, ran both deals. Island sells tools for secure enterprise digital operations and more than doubled its 2024 valuation to $6.4 billion, while Cyera, which governs data security for both humans and AI agents, pushed total funding to $2.7 billion.

The rest of the list is spread across sectors. Snorkel AI secured $350 million in Series E funding at a $3.2 billion valuation with more than $375 million in annual recurring revenue, Enveda raised $311 million for AI-enabled drug discovery, and Precision Neuroscience took $250 million for brain-computer interface technology. Further down, Hubble Network pulled in $200 million for satellite connectivity to Bluetooth devices, Rightway raised $155 million for pharmacy benefits, and three companies tied at $100 million: Rainmaker for cloud seeding, Numeral for sales tax compliance, and Micro1 for AI training data.

For the companies on this list, the size of these rounds raises the bar. Whether the largest bets pay off likely hinges on whether cybersecurity and foundational AI vendors can turn fresh capital into durable enterprise contracts rather than one-time sales.