Quantum Computing

PsiQuantum

PsiQuantum Raises $620M Series D to Transform Quantum Computing

$620M Series D
Total Raised
Series
Latest Round
2016
Founded
300-500
Employees
Palo Alto, CA
2 min read

Quick Facts

Valuation
$5.1B
Latest Round Size
$620M Series D
Latest Round Date
October 2025

PsiQuantum Raises $620M Series D in Latest Funding Round

PsiQuantum has successfully closed a $620M Series D funding round, marking a significant milestone in the company's growth trajectory. The round was led by BlackRock, with participation from Baillie Gifford, M12 (Microsoft).

Company Overview

Founded in 2016 and headquartered in Palo Alto, CA, PsiQuantum has established itself as a leader in the quantum computing space. Quantum computing company building million-qubit photonic quantum computers for practical applications

With a current valuation of $5.1B, the company has demonstrated strong market traction and investor confidence. The organization currently employs 300-500 people and continues to scale its operations.

Investment Details

Funding Round Highlights

  • Amount Raised: $620M Series D
  • Valuation: $5.1B
  • Lead Investor: BlackRock
  • Round Type: Series

Key Investors

The funding round saw participation from several notable investors:

  • BlackRock: World's largest asset manager with over $10T in assets under management
  • Baillie Gifford: Scottish investment management firm known for long-term growth investing
  • M12 (Microsoft): Microsoft's venture fund investing in enterprise software, AI, and infrastructure companies

Market Context

The Quantum Computing sector continues to attract significant investor interest, with companies focusing on innovation, technology integration, and operational efficiency seeing particularly strong funding activity. This investment reflects the growing demand for innovative solutions in this space.

Growth Strategy

With this latest funding, PsiQuantum plans to:

  • Accelerate product development and innovation
  • Expand market reach and customer acquisition
  • Scale engineering and go-to-market teams
  • Strengthen competitive positioning in the quantum computing market

Industry Impact

PsiQuantum's funding round represents the continued evolution of the quantum computing industry, where technology-driven solutions are becoming increasingly critical for business success. The company's approach to developing next-generation computing technologies positions it well for future growth.

Future Outlook

As PsiQuantum moves forward with its expanded funding, the company is well-positioned to capitalize on market opportunities and drive innovation in the quantum computing space. Industry experts expect continued growth and potential for additional strategic partnerships.

The investment validates the company's business model and growth potential, setting the stage for the next phase of expansion and market leadership.

Key Investors

BlackRock
Institutional Investor
World's largest asset manager with over $10T in assets under management
Baillie Gifford
Institutional Investor
Scottish investment management firm known for long-term growth investing
M12 (Microsoft)
Corporate VC
Microsoft's venture fund investing in enterprise software, AI, and infrastructure companies

About the Author

Sarah Kim
Sarah Kim
Healthcare and biotech investment analyst with expertise in Series B+ rounds and strategic partnerships.