# Oratomic Raises $475M Series B at $5.4B Valuation

On October 8, 2026, per Oratomic, California-based neutral-atom quantum computing company Oratomic raised $475 million in a Series B led by ARCH Venture Partners, Spark Capital and Khosla Ventures, at a $5.4 billion valuation, with $775 million raised to date.



Canonical: https://uniquebase.ai/news/19cc6b78-4add-4cbe-b8dc-abdb6e8596ab
Stable identifier: 19cc6b78-4add-4cbe-b8dc-abdb6e8596ab
Snapshot captured: 2026-10-20T18:19:32.670Z
English updated: 2026-10-20T18:21:32.462Z

## Connected profiles

- [ARCH Venture Partners](/institutions/arch-venture-partners)
- [Bezos Expeditions](/institutions/bezos-expeditions)
- [General Catalyst](/institutions/general-catalyst)
- [Index Ventures](/institutions/index-ventures)
- [Khosla Ventures](/institutions/khosla-ventures)
- [Oratomic](/companies/oratomic)
- [Spark Capital](/institutions/spark-capital)

## Sources

- https://www.oratomic.com/news/fundraise