Quantum computing just went from academic curiosity to Wall Street darling. Global venture capital investment in the sector hit $3.9 billion across roughly 125 deals in 2025, the highest annual total ever recorded, according to PitchBook data.
The crown jewel of that spending spree: PsiQuantum’s $1 billion Series E round in September 2025, led by affiliates of BlackRock alongside Singapore’s sovereign wealth fund Temasek and investment firm Baillie Gifford. NVentures, Nvidia’s venture arm, also participated. The deal valued PsiQuantum at $7 billion post-money.
The numbers tell a clear story
Q3 2025 alone saw $1.6 billion flow into quantum computing deals. Q4 2025 added another $1.5 billion.
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