Khosla Ventures co-leads $300M quantum computing bet on Oratomic

Pasadena-based startup Oratomic has secured $300 million in Series A funding to accelerate the development of fault-tolerant quantum computers using neutral-atom technology. Co-led by ARCH Venture Partners, Spark Capital, and Khosla Ventures, the round follows breakthrough research suggesting that utility-scale systems can be achieved with significantly fewer qubits than previously estimated. This investment underscores a major shift in the quantum sector as companies increasingly bypass intermediate-scale systems in favor of building error-corrected hardware capable of solving commercially relevant problems.

Oratomic, which emerged from stealth in March 2026, plans to use the $300 million capital injection to fund high-performance hardware fabrication and expand its engineering and physics teams. The company's founding team includes experts from Caltech, UC Berkeley, Harvard, Amazon, and Google, led by CEO Dolev Bluvstein. Investor Vinod Khosla compared the scale and importance of this backing to his firm’s early investment in OpenAI, noting that Oratomic aims to be the first to solve Shor’s algorithm, a critical benchmark for true quantum computing capability. The funding round also saw participation from high-profile investors including Bezos Expeditions, Index Ventures, and General Catalyst.

The company’s approach centers on neutral-atom arrays, where lasers act as optical tweezers to manipulate individual atoms. Unlike many competitors, Oratomic is skipping the "noisy intermediate-scale quantum" (NISQ) phase to focus entirely on fault-tolerant architectures that utilize error correction. Co-founder Manuel Endres has already demonstrated arrays containing approximately 6,000 trapped atomic qubits in a lab setting. This progress supports the company's research indicating that utility-scale quantum computers could be built with just 10,000 to 20,000 reconfigurable qubits, a drastic reduction from the millions of qubits previously thought necessary by the broader scientific community.

Oratomic’s Series A is one of the largest in the sector's history, arriving during a period of intense financial activity where quantum startups raised $4.68 billion between early 2025 and early 2026. This momentum is highlighted by other massive deals, such as PsiQuantum’s $1 billion Series E and Quantinuum’s $1.68 billion IPO. Oratomic aims to deliver a commercially useful fault-tolerant system before 2030, targeting applications in materials science, artificial intelligence, and chemistry. Furthermore, the company’s focus on Shor’s algorithm highlights the urgent need for post-quantum cryptography, as such a machine would be capable of breaking current public-key encryption systems.