Axiom Solutions International leads week's biggest rounds with $2 billion

This week's list shows how far the AI funding wave has spread beyond model developers. The top ten rounds for Oct. 3-9, 2026, include cloud and power infrastructure, quantum computing, engineering design tools, micro-manufacturing, energy distribution, fusion, insurance, and AI evaluation.

Axiom Solutions International's $2 billion round stands out because it is a corporate spinout rather than a typical venture deal. Flex sold shares to General Catalyst and Koch Equity at an initial enterprise value of $37.5 billion and plans to separate Axiom into an independent publicly traded company early next year, which suggests the infrastructure behind AI is being valued on public-market terms even before listing.

Several companies on the list are also emerging from stealth or building on prior raises. Oratomic, which raised $475 million this week, previously raised $300 million in July. SignSplit came out of stealth with $400 million in seed funding at a $1 billion valuation, and Atomic Machines emerged from stealth after raising $250 million to date. Arena's disclosure that it has exceeded a $100 million annual revenue run rate is a rare concrete revenue data point in a list otherwise dominated by capital raised.