Valar Atomics, a three-year-old startup building small nuclear reactors meant to power data centers and other industrial facilities, is in talks to raise roughly $1 billion in new funding, according to The Information (via Techmeme).
The Information reports the deal would value the company at about $5 billion "pre-money" — that is, before the new cash is added. TechCrunch frames the same round differently, describing a potential deal at a $6 billion valuation. TechCrunch notes that the gap reflects a growing trend of complex, multi-stage funding rounds that can mask a startup's true entry price, so the two figures likely describe different points in the same negotiation rather than conflicting numbers.
Small nuclear reactors — often called small modular reactors — are compact power plants designed to be built faster and sited more flexibly than traditional nuclear stations. Valar Atomics is pitching them squarely at the data-center market.
That focus is the heart of why investors are circling. Data centers, especially those running artificial intelligence workloads, consume enormous and steadily rising amounts of electricity, and operators are hunting for round-the-clock power that existing grids struggle to supply. Nuclear offers steady, carbon-free output, and a wave of tech companies has been striking deals to secure it.
Neither source confirms the round has closed, and the reporting is based on unnamed sources, so terms could still change.
Why it matters: a billion-dollar raise for an unproven, three-year-old reactor company signals how far investors are willing to reach — and how much money is in play — to solve the AI era's mounting appetite for power.