Oratomic raises $475M Series B, bringing total funding to $775M at about a $5.5B valuation

Oratomic/Oratomic fault-tolerant computer

Oratomic raised $475M in a Series B, three months after its Series A, lifting its valuation from about $1.5B to around $5.5B. Bluvstein said the priority is reaching a working quantum computer that is cheap and manufacturable.

• Total raised since the March 2026 launch: $775M.
• Co-led by ARCH, Spark Capital, Khosla Ventures, Index Ventures, General Catalyst and Bezos Expeditions.
• Bluvstein expects the machine to be ready around 2030.
• Some reports put the valuation at $5.4B.