# Oratomic funding rounds and investors

As of 7 Nov 2026, Oratomic has raised $775M across 2 verified rounds on record; latest: $475 million Series B led by Arch Venture Partners, Bezos Expeditions and 4 others, announced 8 Oct 2026.

Developing neutral atom quantum hardware

Website: https://www.oratomic.com/  
Headquarters: South Pasadena, California  
Page: https://fireround.dev/companies/oratomic

## Verified rounds

| Announced | Round | Amount | Lead investors | Other investors | Sources |
| --- | --- | --- | --- | --- | --- |
| 2026-10-08 | Series B | $475 million | Arch Venture Partners, Bezos Expeditions, General Catalyst, Index Ventures, Khosla Ventures, Spark Capital | none named | [oratomic.com](https://www.oratomic.com/news/fundraise), [siliconangle.com](https://siliconangle.com/2026/10/08/oratomic-raises-475m-for-neutral-atom-quantum-computing-universal-quantum-nets-100), [siliconangle.com](https://siliconangle.com/2026/10/08/oratomic-raises-475m-for-neutral-atom-quantum-computing-universal-quantum-nets-100m) |
| 2026-07-06 | Series A | $300 million | Arch Venture Partners, Khosla Ventures, Spark Capital | Bain Capital Ventures, Bezos Expeditions, Formation, General Catalyst, Index Ventures, Lowercarbon Capital, Nebular | [siliconangle.com](https://siliconangle.com/2026/07/08/quantum-startup-oratomic-banks-300m-race-straight-fault-tolerance), [techcrunch.com](https://techcrunch.com/2026/07/10/oratomic-raises-300m-to-build-a-viable-quantum-computer-that-needs-only-20k-qubits), [pulse2.com](https://pulse2.com/oratomic-raises-300-million-series-a-to-build-fault-tolerant-neutral-atom-quantum-computers-straight-to-endgame) |

Source: Fireround (https://fireround.dev), an open-source funding feed. Each round is checked against the pages listed with it.