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Backed by ARCH Venture Partners, Spark Capital +4 more · verified emails and LinkedIn on Datapile

Oratomic raises $475M Series B, hitting $5.4B three months after its Series A - Dealroom
Oratomic, a quantum computing startup, has raised $475 million in a Series B funding round, valuing the company at $5.4 billion. The company is developing a large, error-corrected quantum computer, aiming for a functional machine by 2030 with a significantly lower qubit count than industry consensus. This round marks the largest US Series B in quantum technologies.
Oratomic raises $475M Series B, hitting $5.4B three months after its Series A Dealroom

| Oct 09, 2026 | CleanSpark | $2.28B | Debt | United States |
| Oct 09, 2026 | Atlas Atomics | $400.0M | Series A | United States |
| Oct 09, 2026 | Kapta Space | $24.0M | — | United States |
| Oct 09, 2026 | Ultra | $62.0M | Series A | United States |
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