Oratomic Raises $300M to Build a Viable Quantum Computer That Needs Only 20K Qubits

Oratomic, a quantum computing startup founded by Caltech physicists, has raised a massive $300 million Series A round co-led by ARCH Venture Partners, Spark Capital, and Khosla Ventures, with participation from Bezos Expeditions, Index Ventures, General Catalyst, Lowercarbon Capital, Bain Capital, and others. The company aims to build the first utility-scale quantum computer by the end of the decade, bypassing the noisy intermediate-scale quantum (NISQ) stage entirely.

The key differentiator? Oratomic uses lasers as optical tweezers to hold individual atoms in place, and its researchers discovered a way to correct errors using significantly fewer qubits than previously thought possible. While many quantum computing efforts require millions of qubits to achieve fault tolerance, Oratomic claims it needs only 10,000 to 20,000 qubits to build a useful, error-corrected machine.

“You would have not previously been able to convince any of us to start a quantum computing company, because we just thought it was way too far away,” said co-founder and CEO Dolev Bluvstein. “Only when we made this recent breakthrough did we simultaneously all change our minds.”

Unlike competitors like PsiQuantum — which is also skipping the NISQ phase and targeting a million-qubit system by end of next year — Oratomic argues its approach is fundamentally simpler and less expensive. Bluvstein noted that the company has already experimentally demonstrated all core components of its computer at a slightly smaller scale.

Full-scale quantum computers could revolutionize fields requiring complex calculations, from biotech and chemistry to logistics, AI, and cryptography. The sector has seen a surge of investor enthusiasm, with companies like Infleqtion and Quantinuum going public this year, and Rigetti and IonQ shares rising sharply. Vinod Khosla called Oratomic his firm's “largest initial investment yet.”