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North Cloud Holdings raised $60 million in a Series B round led by PeakSpan Capital.
Why it matters: North.cloud's $60M Series B and its TokenFlow product show how AI infrastructure spending is becoming a FinOps problem, with early customers reporting $400M in combined savings.
Thoma Bravo-owned Proofpoint agreed to acquire data security company Varonis for about $6.3 billion in cash.
Why it matters: The deal shows how AI data access risk is reshaping cybersecurity M&A, with Proofpoint paying a 52% premium to fold Varonis into one platform.
Vinci4D closed a $250 million Series B at a $1.5 billion valuation, co-led by Advent International.
Why it matters: Vinci4D's physics-trained simulation models and its $250M Series B show how physics foundation models are being positioned against traditional finite element analysis in chip design.
Global cybersecurity and privacy startups raised $6.8 billion in Q3 2026, up about 50% from the prior quarter and tied for the highest quarterly total in years.
Why it matters: Crunchbase data shows Q3 2026 cybersecurity funding hit $6.8B on bigger rounds, with AI and identity security startups taking most of it.
Duvo, the enterprise AI operating system founded by Rohlik's Tomas Cupr, raised a $32M Series A led by Balderton Capital with Index Ventures.
Why it matters: Duvo's $32M Series A and its founder's account of why most agentic AI deployments stall offer a concrete look at enterprise automation economics.
Harmonic Security raised a $50 million Series B led by Crosspoint Capital Partners.
Why it matters: Harmonic's $50M Series B lands as two rivals get acquired, so readers can weigh whether standalone AI-usage security survives or gets absorbed into larger platforms.
Pluto Security raised $42 million, about a fifth as a seed round led by TLV Partners and the rest a Series A led by Jump Capital.
Why it matters: Pluto Security's $42M raise shows how AI agent discovery and policy-based containment are becoming a distinct enterprise security category.
Cloudflare announced Friday it is acquiring Deno, the startup behind the Deno runtime.
Why it matters: Cloudflare's acquisition of Deno shows how a runtime startup's open source Workers implementation can shape a major cloud platform's developer model.
Hilt emerged from stealth with $4.2 million in seed funding led by Array Ventures.
Why it matters: A founder profile that traces how a hedge fund's high-frequency trading problem shaped Hilt's kernel-level anomaly detection, useful for readers weighing security tooling for AI agents.
Modelence, a Y Combinator startup from this summer's batch, raised a $3 million seed round led by Y Combinator.
Why it matters: Modelence's diagnosis that the fragile part of vibe coding is the glue between services, not any single service, gives readers a concrete way to judge infrastructure bets in this crowded space.
Supabase raised $100 million at a $5 billion valuation, just months after closing $200 million at a $2 billion valuation. On TechCrunch's Equity podcast.
Why it matters: Supabase's decision to decline large enterprise contracts while raising at a $5B valuation offers a concrete look at how infrastructure startups are positioning themselves in the vibe-coding boom.
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