Oratomic Raises $300M to Build a Quantum Computer That Needs Only 20,000 Qubits

The Caltech-founded startup claims its neutral-atom approach requires 50x fewer qubits than competitors, attracting backing from Bezos Expeditions, Khosla Ventures, and ARCH Venture Partners.

Oratomic, a Pasadena-based startup founded by Caltech physicists, has raised a $300 million Series A to build what it claims will be the first utility-scale quantum computer — and it says it can do it with just 20,000 qubits, a fraction of what competitors require.

The massive round was co-led by ARCH Venture Partners, Spark Capital, and Khosla Ventures, with participation from Bezos Expeditions, Index Ventures, General Catalyst, Lowercarbon Capital, and Bain Capital. Vinod Khosla called it his firm's "largest initial investment yet."

The company uses lasers as optical tweezers to hold individual neutral atoms in place — an approach its researchers discovered can correct quantum errors using significantly fewer qubits than previously thought possible. Error correction is the central challenge in quantum computing, where qubits are notoriously sensitive to environmental noise.

"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," co-founder and CEO Dolev Bluvstein told TechCrunch. "Only when we made this recent breakthrough did we simultaneously all change our minds."

Unlike most quantum startups, Oratomic is skipping the intermediate stage of building noisy prototype machines — known as NISQ — and aiming directly for a fault-tolerant system by the end of the decade.

For comparison, PsiQuantum, a rival valued at $7 billion last September, is targeting a million-qubit machine. Bluvstein argues Oratomic's approach is fundamentally simpler and less expensive, with all core components already demonstrated at a smaller scale.

The investment comes amid a broader quantum computing boom. Several startups in the space, including Infleqtion and Quantinuum, have gone public this year, while established players like Rigetti and IonQ have seen their share prices surge over the past 18 months.

A full-scale quantum computer could unlock breakthroughs in fields ranging from drug discovery and materials science to logistics optimization, artificial intelligence, and cryptography.

Sources: TechCrunch, Oratomic