Oratomic announced on October 8 that it has raised $775 million in total funding since launching from stealth in March 2026, with the latest leg a $475 million Series B that values the Pasadena company at $5.4 billion, according to Wilson Sonsini, which advised on the transaction. The round was co-led by ARCH Venture Partners, Spark Capital, Khosla Ventures, Index Ventures, General Catalyst and Bezos Expeditions, and follows a $300 million Series A closed in July.
The company is led by co-founder and CEO Dolev Bluvstein, who holds a doctorate from Harvard, with Caltech professor Manuel Endres as co-founder. Its thesis is the starkest cost reduction in the quantum field: because its neutral-atom architecture uses lasers as optical tweezers to trap and rearrange individual atoms, atoms can form error-correction relationships with many more neighbors than fixed architectures allow. Endres has already trapped arrays of roughly 6,000 atoms in the lab, and the company argues a useful, error-corrected machine needs only about 10,000 to 20,000 physical qubits rather than the millions some rival approaches assume, targeting a utility-scale machine by 2030. Bluvstein has called the end-of-decade outcome plausible but not guaranteed.
The funding will support growth of the scientific and engineering team, laboratory infrastructure, and the systems needed to build the machines. Oratomic says it will pursue no intermediate commercial products or revenue until fault tolerance is reached, giving the $775 million about four years of runway under its current plan, and it is backed by Lowercarbon Capital, Bain Capital and others alongside the lead firms. The round landed the same week UK trapped-ion startup Universal Quantum announced a $100 million-plus Series A, the largest such round for a UK quantum company, in what is rapidly becoming a two-architecture capital race.