Valar Atomics raises $1B Series B, triples valuation to $6B

Nuclear startup Valar Atomics closed a $1 billion Series B on August 3 led by Sequoia Capital's Shaun Maguire, who joins the board, tripling the company's valuation to $6 billion just months after its $2 billion March round. Valar also secured a separate $200 million credit facility, with the new capital earmarked for shifting its Ward250 reactor design from prototype to factory-built, mass-produced small modular reactors.