Oratomic

Quantum Computing · Deep Tech

Funding

Oratomic raises $475M Series B at $5.4B valuation

The round rests on a contrarian bet that a useful quantum computer needs just 10,000 qubits, not the million once assumed.

• Oratomic raised $475 million in a Series B round co-led by ARCH Venture Partners, Spark Capital, Khosla Ventures, Index Ventures, General Catalyst and Bezos Expeditions, valuing the company at $5.4 billion.
• The Pasadena, California startup, founded in 2025, is building fault-tolerant quantum computers using reconfigurable arrays of neutral atoms.
• The Series B lands just three months after Oratomic's $300 million Series A in July 2026, which had valued the company at $1.5 billion.
• Total funding now stands at $775 million since the company's launch in March 2026.
• CEO and co-founder Dolev Bluvstein says a useful quantum computer needs only about 10,000 qubits, far below the roughly one million previously assumed, with a target of 2030.
• Gartner forecasts global quantum computing revenue will top $1.1 billion in 2027, even as it predicts more than half of quantum startups will fail by 2030.
• The rapid valuation jump signals investor urgency to lock in hardware bets on fault-tolerant quantum computing ahead of an anticipated industry shakeout.