PsiQuantum
PsiQuantum is building the world's first commercially useful, utility-scale fault-tolerant quantum computer based on photonic qubits, with manufacturing partnerships at GlobalFoundries. Founded in 2016 by University of Bristol researchers and headquartered in Palo Alto, the company has raised approximately $1.8B in equity, including a $1B round in September 2025 led by BlackRock that valued it at $7B.
Company snapshot
- Active
- Total funding
- $1.8B
- Funding rounds
- 6
- Last round (Series E)
- $1.0B
- Last round date
- Sep 2025
- Founded
- 2016
- Employees
- 501-1000
- Headquarters
- Palo Alto, California, United States
Last round vs total raised$1.0B of $1.8B
Founders
Jeremy O'Brien, Terry Rudolph, Pete Shadbolt, Mark Thompson
Industries
- Quantum Computing
- Hardware
- Photonics
- Deep Tech
Notable investors
| Investor | Role |
|---|---|
| BlackRock | Lead |
| Baillie Gifford | Lead |
| Temasek | Co-investor |
| Microsoft (M12) | Co-investor |
| Playground Global | Co-investor |
| BlueScopeX | Lead |
| Atomico | Co-investor |