MilestoneIndustryConfirmed
Quantinuum raises about $600 million at a $10 billion valuation
Sep 4, 2025
Honeywell announced that Quantinuum, the trapped-ion quantum computing company it backs, raised about $600 million in new equity at a pre-money valuation (its value before the new money) of $10 billion. NVIDIA's venture arm, Quanta Computer and QED Investors joined backers such as JPMorganChase.
Why it matters
Quantum Computing Report called it the largest single venture round in the quantum industry so far; the money was meant to support the launch of Quantinuum's next machine, Helios.
Quantinuum · Honeywell · NVIDIA
Sources (2)
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Quantinuum (release from Honeywell)
Honeywell Announces $600 Million Capital Raise For Quantinuum at $10B Pre-Money Equity Valuation to Advance Quantum Computing at Scale
“Honeywell today announced an approximately $600 million equity capital raise for Quantinuum, developer of the world’s highest-performing quantum computer, at a pre-money equity valuation of $10 billion.”
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Quantum Computing Report
Quantinuum Closes $600 Million Capital Raise at a $10 Billion Valuation
“This is the largest single venture capital round in the quantum industry so far.”
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