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Oratomic Raises $300M in Series A Funding led by ARCH Venture Partners, Spark Capital, and Khosla Ventures to enhance quantum computing architectures.

PRIVATEJul 07, 2026•about 1 month ago

Amount Raised

$300 Million

Round Type

Series A

PasadenaMachine Learning

Investors

Scott AaronsonDavid AaronsonNebularFormation 8Bain Capital VenturesLowercarbon CapitalGeneral CatalystIndex VenturesBezos ExpeditionsKhosla VenturesSpark CapitalArch Venture Partners

Description

Oratomic, a Pasadena-based developer of quantum computing technologies, secured $300M in Series A funding. The round was co-led by ARCH Venture Partners, Spark Capital, and Khosla Ventures, with participation from several notable investors. The funding will support high-performance quantum hardware fabrication and expansion of engineering teams. Led by CEO Dolev Bluvstein, Oratomic focuses on fault-tolerant quantum computing solutions.

Company Information

Company

Oratomic

Location

Pasadena, California, United States

About

Oratomic is a Pasadena, CA-based developer of fault-tolerant quantum computing architectures and quantum-error correction systems. The company focuses on building commercially scalable quantum computers that circumvent noisy intermediate-scale quantum bottlenecks through advanced error correction techniques. Oratomic supports large-scale applications in machine learning and molecular chemistry simulations with optimized hardware designs. Led by CEO Dolev Bluvstein, the company is aggressively expanding its engineering teams to enhance its quantum technology capabilities.

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Typical timeline to Series B

Series A companies typically raise their next round in 10-18 months

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47% of Series A startups spend $400k or more per month on operations

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