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
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 |
Frequently asked questions
How much funding has PsiQuantum raised?
PsiQuantum has raised $1.8B in total funding across 6 rounds.
What was PsiQuantum's most recent funding round?
PsiQuantum's most recent round was a Series E of $1.0B in Sep 2025.
When was PsiQuantum founded?
PsiQuantum was founded in 2016.
Where is PsiQuantum headquartered?
PsiQuantum is headquartered in Palo Alto, California, United States.
How many employees does PsiQuantum have?
PsiQuantum has 501-1000 employees.
Who are PsiQuantum's investors?
PsiQuantum's notable investors include BlackRock, Baillie Gifford, Temasek, Microsoft (M12), Playground Global, BlueScopeX.