Keyfactor, SambaNova lead week's $10B+ funding as AI dominates venture capital

Keyfactor and SambaNova each closed $1 billion financing rounds in the week of July 8–10, 2026, anchoring Crunchbase's tracking of the top 10 U.S. venture deals. Keyfactor, an identity and machine-identity management platform, raised a $1B Series VC round led by Summit Partners (with Insight Partners and Sixth Street Growth participating), bringing total capital raised to $1.21 billion. SambaNova's $1B Series F (first close) at $11B post-money valuation was led by General Atlantic, with broad institutional participation including BlackRock, Qatar Investment Authority, and T. Rowe Price.

Beyond the billion-dollar deals, the week saw robust capital flowing to adjacent categories: Oratomic (neutral-atom quantum computing) raised $300M Series A; Prime Intellect ($130M Series A for distributed AI training infrastructure, backed by OpenAI co-founder John Schulman and Perplexity CEO Aravind Srinivas); Norm AI ($120M Series C at $1.2B valuation for AI compliance); and Quaise Energy ($134M Series B for geothermal drilling). AI infrastructure and enterprise AI captured five of the ten largest announced rounds.

For architects, this concentration signals: (1) enterprise IT infrastructure (zero-trust identity, compliance automation) remains well-capitalized despite AI hype; (2) alternative compute architectures (quantum, geothermal, inference-optimized silicon) are attracting mega-rounds; (3) the venture market is actively bifurcating between frontier-lab-adjacent raises and specialized infrastructure plays, each commanding $100M+ checks.