Cybersecurity startups lead week’s biggest funding rounds

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Cybersecurity startups funding rounds

Highlights

Island and Cyera each raised $400 million in major Series F and Series G rounds led by Evolution Equity Partners, highlighting strong investor interest in cybersecurity.
Snorkel AI secured $350 million in Series E funding at a $3.2 billion valuation, reporting over $375 million in annual recurring revenue.
Other notable rounds included Enveda’s $311 million, Precision Neuroscience’s $250 million, and Hubble Network’s $200 million, signaling broad demand across AI, healthcare, and enterprise infrastructure.

Largest financings across cybersecurity and AI

As reported by Crunchbase News, Island and Cyera each raise $400 million in the week’s biggest startup financings, putting cybersecurity at the top of the funding rankings. Dallas-based Island, which develops tools for secure enterprise digital operations, says its Series F round led by Evolution Equity Partners values the company at $6.4 billion, more than double its 2024 valuation.

Cyera, based in New York, secures a $400 million Series G extension led by Evolution Equity Partners and backed by Goldman Sachs Growth Equity. Crunchbase data shows the enterprise data security company, which builds tools for governing both human and AI agent access, now reaches $2.7 billion in total funding.

Snorkel AI follows with a $350 million Series E round led by Insight Partners and S32, valuing the San Francisco-based company at $3.2 billion. The company, which provides specialized training data and environments for frontier labs and AI teams, now has more than $375 million in annual recurring revenue.

Other large rounds include Enveda’s $311 million Series E for AI-enabled drug discovery and Precision Neuroscience’s $250 million Series D for brain-computer interface technology. Hubble Network also brings in $200 million in Series C funding for its satellite-based Bluetooth connectivity network.

Investor appetite broadens across health and enterprise tools

Beyond the largest cybersecurity and AI rounds, the funding list points to sustained demand for startups serving healthcare, enterprise operations and niche infrastructure markets. New York-based Rightway raises $155 million in Series E funding led by Francisco Partners and plans to use part of the capital to expand its AI capabilities.

Several companies also tie with $100 million rounds. Rainmaker, based in El Segundo, California, raises Series B funding for atmospheric research and freshwater production through cloud seeding, with backing from investors including Noa, Upfront Ventures, DCVC, Lowercarbon Capital and Dream Ventures.

San Francisco-based Numeral closes a $100 million Series C led by Insight Partners for its AI-powered sales tax compliance platform. Micro1, also based in San Francisco, reportedly raises more than $100 million at a $4 billion valuation, with Forbes citing people familiar with the deal for the AI training data provider’s latest financing.

In our earlier article on the Fed’s growing focus on the AI ecosystem, we noted officials are assessing whether the sector’s fast expansion—alongside data center build-outs and dense contractual ties—could become large and interconnected enough to pose financial-stability risks. We also highlighted how rising concentration and dependencies across AI firms and infrastructure may draw closer regulatory scrutiny if parts of the network start to look “too big to fail.”

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