How Much Did PsiQuantum Raise? Headquarters, Funding & Key Investors

PsiQuantum has raised a total of $2.32 billion across multiple rounds, including a $13.5 million Series A (2016), $50 million Series B (2017), $150 million Series C (2020), and a $450 million Series D (2021). In April 2024, the company secured A$940 million through a venture round led by the Australian and Queensland Governments, followed by additional debt and grant funding the same year. The most recent $1 billion Series E (September 2025) valued PsiQuantum at $7 billion, underscoring investor confidence in its pursuit of scalable photonic quantum computing.

How Much Did PsiQuantum Raise? Funding & Key Investors

PsiQuantum, founded in 2015 in Palo Alto by Jeremy O’Brien, Mark Thompson, Peter Shadbolt, and Terry Rudolph, is a photonics-based quantum computing company developing fault-tolerant, universal quantum computers. Leveraging semiconductor infrastructure, it aims to scale photonic qubit production for applications in drug discovery, AI, and materials science. The company has raised $2.32B from investors including BlackRock, Atomico, and the Australian Government, reaching a $7B valuation in 2025. PsiQuantum plans to operationalize its Brisbane quantum facility by 2027 and advance utility-scale quantum computing worldwide.

What Is PsiQuantum and What Does It Do?

PsiQuantum, founded in 2015 by Jeremy O’Brien, Mark Thompson, Peter Shadbolt, and Terry Rudolph, is a Palo Alto (United States)-based photonics and quantum computing company.

With a team of 213 employees (as of December 2022), PsiQuantum focuses on developing fault-tolerant, photonic-based universal quantum computers.

The company leverages existing semiconductor infrastructure to scale the production of photonic qubits, enabling applications across drug discovery, materials science, artificial intelligence, and personalized medicine. Its goal is to deliver the world’s first utility-scale quantum computer to tackle humanity’s most complex computational challenges.

How Much Funding Has PsiQuantum Raised?

1. Series A

Amount Raised: $13.5 million
Date: June 2016
Lead Investors: Playground Global, Redpoint
Motivation: To establish the company and begin initial development of quantum computing technology.

2. Series B

Amount Raised: $50 million
Date: September 2017
Lead Investors: Founders Fund
Motivation: To expand R&D efforts and hire additional talent.

3. Series C

Amount Raised: $150 million
Date: April 2020
Lead Investors: Atomico
Motivation: To accelerate the development of photonic quantum technology.

4. Series D

Amount Raised: $450 million
Date: July 2021
Lead Investors: BlackRock
Motivation: To advance quantum infrastructure and move closer to commercial readiness.

5. Venture Round

Amount Raised: A$940 million
Date: April 2024
Lead Investors: Australian Government, Queensland Government
Motivation: To build a quantum computing site near Brisbane Airport operational by 2027.

6. Series E

Amount Raised: $1 billion
Date: September 2025
Lead Investors: T. Rowe Price, Adage Capital Management
Motivation: To scale manufacturing of photonic quantum processors and expand global facilities.

Total Funding Raised: $2.32 Billion

Current Valuation: $7 Billion (as of September 2025)

Latest Funding Date: September 2025

Key Investors

1. Australian Government

Details: The Australian government is investing in national technology and infrastructure projects.
Investment Focus Areas: Technology, infrastructure, innovation.
Notable Investments: Renewable energy initiatives, infrastructure projects, tech startups.

2. Queensland Government

Details: State government supporting regional development and innovation.
Investment Focus Areas: Regional development, technology, innovation.
Notable Investments: Infrastructure projects, technology hubs, innovation centers.

3. BlackRock

Details: Global investment management corporation based in New York City.
Investment Focus Areas: Technology, financial services, and healthcare.
Notable Investments: Apple, Microsoft, Alphabet.

4. Atomico

Details: Venture capital firm founded by Niklas Zennström (co-founder of Skype).
Investment Focus Areas: Technology, software, telecommunications.
Notable Investments: Klarna, Supercell, Graphcore.

5. Founders Fund

Details: VC firm founded by Peter Thiel, Ken Howery, and Luke Nosek, based in San Francisco.
Investment Focus Areas: Technology, aerospace, and healthcare.
Notable Investments: SpaceX, Palantir Technologies, Airbnb.

Where Is PsiQuantum’s Headquarters?

PsiQuantum’s headquarters is in Palo Alto, California, within Silicon Valley’s deep tech ecosystem. The region’s robust venture network and infrastructure accelerate PsiQuantum’s hardware development and commercialization plans.

What’s Next for PsiQuantum?

With backing from governments and global VC leaders, PsiQuantum is building a quantum computing facility near Brisbane Airport, expected to be operational by 2027. The project marks a critical step toward deploying a utility-scale, fault-tolerant quantum computer capable of addressing global problems in energy, healthcare, and materials science. As it progresses toward commercial readiness, PsiQuantum aims to lead the transition from experimental quantum systems to real-world computing applications that redefine the boundaries of science and technology.

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