Oratomic, a startup founded by Caltech physicists, announced on July 10, 2026 that it has raised $300 million in a Series A round to develop a fault‑tolerant quantum computer that requires approximately 20,000 qubits, with the goal of delivering a utility‑scale system by the end of the decade, according to the company. The company’s architecture uses lasers to trap individual atoms as optical tweezers, a technique it says can correct errors using fewer qubits than earlier approaches, thereby addressing the noise problem that has limited previous quantum devices, as reported by the company. The funding round was led by ARCH Venture Partners, Spark Capital and Khosla Ventures, with participation from Bezos Expeditions, Index Ventures, General Catalyst, Lowercarbon Capital, Bain Capital and other investors, according to a press release. Oratomic said it will not pursue sales of noisy intermediate‑scale quantum (NISQ) prototypes, distinguishing its focus from firms such as PsiQuantum, which is valued at $7 billion and plans a million‑qubit system by 2027, the company added. CEO Dolev Bluvstein said the approach is simpler and less expensive, noting that experiments have demonstrated all core components at a smaller scale, the company reported. He also noted that the required qubit count of 10,000 to 20,000 is lower than the thousands of physical qubits typically cited for fault tolerance, and that the company has already validated the essential hardware elements. A fully functional quantum computer could enable breakthroughs in fields such as biotechnology, chemistry, logistics, artificial intelligence and cryptography, according to the company. The quantum computing sector has seen heightened investor activity, with startups Infleqtion and Quantinuum going public this year and publicly traded companies Rigetti and IonQ experiencing share‑price gains over the past 18 months, the company said. Investor Vinod Khosla wrote on X that the investment represents his firm’s largest initial commitment yet, the company added. The financing highlights growing confidence in scalable quantum computing, although commercial deployment is expected to require several more years, the company noted.