Oratomic raises $300m for development of 20,000 qubit fault-tolerant quantum computer

Fault-tolerant quantum computing startup Oratomic announced it has raised $300 million in a Series A financing round. The round was co-led by Arch Venture Partners, Spark Capital, and Khosla Ventures, with participation from Bain Capital, Bezos Expeditions, Formation, Nebular, General Catalyst, Index Ventures, Lowercarbon Capital, and David and Scott Aaronson. Additional investors include Baiju Bhatt, Genius Ventures, Global Frontier, Infleqtion, Les Kohn, and 7i Capital and Investments. In a blog post, Oratomic said it is building artificial intelligence systems to automate its research efforts as well as the design of its quantum computer. The startup also claimed it was not interested in pursuing intermediate products or commercial systems and was instead entirely focused on building a fault-tolerant quantum computer. The Pasadena-based startup emerged from stealth in March 2026, with the company claiming that its approach, which uses lasers to hold individual atoms in place, would allow it to develop a useful fault-tolerant computer using 10,000 to 20,000 qubits, far fewer than other companies working on this modality have previously claimed were necessary. According to the startup, one of its founders, Manuel Endres, has already trapped arrays of 6,000 atomic qubits. Oratomic is currently hiring for generalists, scientists, engineers, and technicians to join its team, noting that a background in quantum computing is not required.