AI Startup Radar — Week of July 21, 2026
The AI funding frenzy showed no summer slowdown this week, with over $1.5 billion flowing to enterprise infrastructure and physical AI startups. Fireworks AI's $1.5 billion Series D emerged as the largest single round, signaling explosive investor appetite for AI inference infrastructure. Meanwhile, AI agent security and materials science startups captured significant capital, reflecting a shift toward "control plane" AI rather than consumer-facing applications.
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