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Home / Company / Psi Quantum

Psi Quantum

Last Updated July 29, 2025

PsiQuantum is building large-scale, fault-tolerant quantum computers using a photonics-based architecture optimized for mass production. The firm combines advanced semiconductor techniques with quantum error correction and is aligned with infrastructure initiatives to scale quantum computing applications across science, industry, and national needs.
Company Overview: Psi Quantum
PsiQuantum is a quantum computing company pursuing a photonics-based approach to fault-tolerant systems. The firm focuses on scalable architectures, fabrication, and error-correction methods to support future high-performance applications. PsiQuantum operates within the quantum information and advanced computing sector.
Investment Highlights

Valuation & Growth

  • In March 2025, raised at least $750M in Series E led by BlackRock at a $6B valuation
  • Now pursuing commercial use cases with plans for a quantum computing facility operational by 2027
  • Valuation doubled since 2021 round (~$3.15B), reflecting rapid scale‑up

Major Investors

  • BlackRock (lead), Baillie Gifford, Temasek, Microsoft’s M12, Blackbird Ventures
  • Government partnerships in Australia and Illinois support infrastructure expansion
Product & Technology Leadership

Core Technologies

  • Omega Photonic Chips: Manufactured via GlobalFoundries using standard 45 nm silicon photonics—now in mass‑production
  • Error‑corrected Architecture: Designs aimed at scalability with fault tolerance
  • Cryogenic Quantum Cabinets: Facility-scale hardware integrated with wafer‑scale chip output
 Market Position & Strategic Advantage

Strategic Advantage & Collaborations

  • Unique photonic qubit approach offers manufacturability at scale versus exotic-material quantum companies
  • High-fidelity partnerships with GlobalFoundries for mass production, plus government-backed quantum facilities
  • Positioned to serve sectors like pharmaceuticals, materials research, cryptography, and logistics optimization
Financial Opportunity

Market Opportunity

  • Demand for quantum computing expected to surge across scientific and industrial domains
  • PsiQuantum’s roadmap targets first useful machine by 2029, with production scale before then

Growth Drivers

  • Expansion of wafer-scale quantum chip production
  • Deployment of quantum facilities in U.S. and Australia
  • Continued government and enterprise contracts for early-use cases in research and material simulation

Revenue Streams

  • Licensing and hardware sale of quantum systems
  • Research agreements with academic and national institutions
  • Long-term enterprise and sovereign deployment contracts
Key Stats

Founded: 2016

Total Raised: $1.32 B across 7 rounds

Latest Round: ~$750 M Series E at $6 B valuation (March 2025)

Estimated Revenue: ~$240 M (2024)

Employees: ~280–400 (2024–25 estimate)

Core Technology: Omega photonic quantum chips, manufacturing at GlobalFoundries

Strategic Partnerships: U.S. Air Force, Queensland government, Illinois Quantum Park

Headquarters: Palo Alto, CA, USA

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Investment in private companies involves substantial risk and is suitable only for sophisticated investors who can bear the loss of their entire investment. Past performance is not indicative of future results.

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About Psi Quantum

Founded in 2016 by Jeremy O’Brien, Terry Rudolph, Peter Shadbolt, and Mark Thompson, PsiQuantum is headquartered in Palo Alto, California. The company combines photonic chip architecture with traditional semiconductor processes—partnering with GlobalFoundries—to produce quantum chips at scale. PsiQuantum is working with governments (Australia, U.S.) to build quantum computing facilities in Brisbane and Chicago, aiming to deliver useful, error‑corrected machines by 2029.