Nuclear Startup Valar Atomics Nears $6 Billion Valuation

Nuclear Startup Valar Atomics Nears $6 Billion Valuation

Quick Reads

• Valar Atomics, which builds small modular nuclear reactors, is negotiating a new funding round that would value the company at roughly $6 billion, with Sequoia Capital expected to lead.

• The startup previously raised $450 million at a $2 billion valuation in March, part of a broader trend of multi-stage funding rounds that blur true entry prices for investors.

• Valar’s rise is fueled by surging AI data center electricity demand, backing from Palmer Luckey and Shyam Sankar, and a recent demo powering an Nvidia chip with its reactor.

Valar Atomics, a startup building small modular nuclear reactors (SMRs), is in talks to raise fresh capital at a Valar Atomics $6 billion valuation, according to three sources familiar with the discussions. Sequoia Capital expected to lead the round.

A Fast Climb for a Three-Year-Old Reactor Startup

The Information first reported the funding talks, noting the El Segundo, California-based company is targeting a $1 billion raise. Part of that capital already secured at a lower price: Valar previously raised $450 million $340 million in equity and $110 million in debt at a $2 billion valuation this past March, per Bloomberg.

The structure reflects a broader shift in venture financing, where startups increasingly raise in multiple installments at different valuations, sometimes obscuring what investors actually paid to get in. Sequoia and Valar declined to comment on the new talks.

Valar’s momentum comes as demand for AI-driven electricity surges faster than utilities can build capacity, pushing nuclear power back into investor focus despite its history of cost overruns and regulatory delays. Earlier this month, Valar demonstrated its reactor powering an Nvidia AI chip and announced a partnership to explore nuclear-powered data centers.

Backed by Anduril founder Palmer Luckey and Palantir CTO Shyam Sankar, Valar competes with Kairos Power, Bill Gates-backed TerraPower, and NuScale Power. The company also joined a lawsuit against the Nuclear Regulatory Commission, challenging licensing rules for small test reactors. Founder Isaiah Taylor, 27, dropped out of high school before launching Valar.