Cybersecurity startups Island and Cyera led a week of large U.S. venture financings with $400 million rounds each. The deals headed Crunchbase’s ranking of announced startup funding for Sept. 19-25, 2026.
Both rounds involved Evolution Equity Partners as lead investor. The companies serve different enterprise security needs, with Island focused on secure digital operations and Cyera on data security.
The Crunchbase funding ranking also included substantial AI and healthcare deals. Its figures cover announced rounds involving U.S.-based companies, rather than a measure of every venture transaction.
Two Security Companies Lead With Different Financing Histories
Dallas-based Island raised its $400 million through Series F financing led by Evolution Equity Partners. The round valued the company at $6.4 billion, more than double its 2024 valuation.
New York-based Cyera secured a Series G extension of the same size. Evolution Equity Partners led that financing, with backing from Goldman Sachs Growth Equity.
Cyera provides enterprise data-security tools that govern humans and AI agents. Crunchbase data puts its total funding at $2.7 billion following the extension.
The identical round sizes placed the two cybersecurity businesses ahead of the other companies in the ranking. The figures describe separate financings, each attached to its own company and funding stage.
AI and Drug Discovery Follow the Security Deals
Snorkel AI followed with $350 million in Series E funding led by Insight Partners and S32. The financing valued the San Francisco company at $3.2 billion.
The company supplies tools for specialized training data and environments used by frontier labs and AI teams. Crunchbase reported that the 7-year-old business has more than $375 million in annual recurring revenue.
AI-enabled drug discovery startup Enveda raised $311 million in Series E financing led by Catalio Capital Management. New and existing investors joined the round for the Boulder, Colorado-based company.
That financing brought Enveda’s total capital raised since inception to more than $845 million. Precision Neuroscience followed in the ranking with a $250 million Series D round.
The New York startup focuses on brain-computer interface technology. Pershing Square and the Ackman Oxman Institute served as lead investors in its financing.
The Ranking Also Includes Connectivity and Tax Compliance
Hubble Network raised $200 million in Series C funding led by Smith Point Capital. The Seattle company operates a satellite network extending connectivity to Bluetooth devices; the round valued it at $1.6 billion.
Rightway secured $155 million in Series E financing led by Francisco Partners. The pharmacy-benefits and care-navigation provider plans to use part of the funding to expand its AI capabilities.
The ranking’s final group included Rainmaker, Numeral and Micro1. Rainmaker raised $100 million for its cloud-seeding business, and sales-tax compliance platform Numeral closed a $100 million Series C.
Micro1 reportedly raised more than $100 million at a $4 billion valuation. That figure came from Forbes reporting citing people familiar with the AI-training-data company’s deal.
Crunchbase noted that late reporting can delay the appearance of some announced rounds in its database. That qualification limits the weekly ranking’s completeness.