PsiQuantum raises $1 billion Series E
BlackRock, Temasek and Baillie Gifford led the September 2025 round at a $7 billion valuation.
PsiQuantum raised $1 billion in a Series E announced on September 10, 2025, at a $7 billion valuation. BlackRock, Temasek and Baillie Gifford led the round. New backers included Qatar Investment Authority and entities administered by Macquarie Capital.
The funding supported work on utility-scale quantum computing sites in Australia and Chicago, large-scale prototype systems, and improvements to quantum photonic chips. PsiQuantum uses a light-based approach and semiconductor manufacturing to develop machines designed for fault-tolerant computation.
Use of funds
Quantum computing sites in Brisbane and Chicago
Large-scale prototype systems
Quantum photonic chip development