Valar, which is making small modular nuclear reactors to power data centers, raised a $1B Series B led by Sequoia at a $6B post-money valuation (Bloomberg)

Summary

Valar Atomics landed a $1 billion Series B at a $6 billion valuation as data-center power demand keeps pulling nuclear back into venture conversations.

Why it matters

The round shows that AI infrastructure is no longer just a compute story; power generation and long-duration capacity are becoming venture-scale opportunities too.

Founder/operator read

For operators, this is a reminder that bottlenecks create categories. If your product sits near a structural constraint, the market may reward capital intensity when the payoff is strategic.

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