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PsiQuantum Stock (PSIQ)
PsiQuantum aims to leverage silicon photonics to build fault-tolerant quantum computers. They claim this avoids the complexities of exotic materials, capitalizing on decades of established silicon chip manufacturing to deliver a scalable path to the future of computing.
PsiQuantum focuses on building a large-scale, general-purpose silicon photonic quantum computer with at least 1 million physical qubits.
About PsiQuantum Stock
Founded
2016
Headquarters
Palo Alto, CA, US
Total Funding
1.8B
Industries
Hardware, Software, Science and Engineering
PsiQuantum is focused on developing and deploying utility-scale, fault-tolerant quantum computers by leveraging silicon-photonics and advanced semiconductor manufacturing. The company claims to be building wafers of quantum chips, testing production cryogenic cabinets, and optimizing quantum algorithms. PsiQuantum acknowledges its commitment to serving as a government partner, while applying the technology to sectors like sustainability, healthcare, finance, transportation, and security.
PsiQuantum Press Mentions
Stay in the know about the latest news on PsiQuantum
North American Startup Funding Held High In Q3
news • Oct 07, 2025
AI drives 38% surge in global venture capital funding as third quarter hits $97B
siliconangle • Oct 06, 2025
Q3 Venture Funding Jumps 38% As More Massive Rounds Go To AI Giants And Exits Gain Steam
news • Oct 06, 2025
ICYMI đź‘€
sourcery • Oct 06, 2025
Nvidia backs 22 companies in September investment spree
globalventuring • Oct 03, 2025
Investors in PsiQuantum
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PsiQuantum Management
Leadership team at PsiQuantum
Co-founder and CEO
Jeremy O'Brien
Co-founder and Chief Scientific Officer
Peter Shadbolt
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PsiQuantum Key Facts
- Securing a Landmark $1 Billion Funding Round: PsiQuantum has solidified its financial position by raising $1 billion in a Series E funding round in September 2025, which values the company at $7 billion. This is one of the largest funding rounds in the quantum computing industry to date. The funding, led by prominent investors like BlackRock and Temasek, with participation from NVIDIA’s venture arm, NVentures, provides the company with capital needed to push its ambitious roadmap forward. This significant infusion of capital underscores investor interest in PsiQuantum's approach to building a fault-tolerant quantum computer and its commercial viability.
- Accelerating Strategic Partnerships and Commercialization: The company is making significant strides in its commercialization strategy through key partnerships and government support. In May 2025, PsiQuantum partnered with Linde Engineering to build one of the largest cryogenic plants ever designed for a quantum computer, a critical step for its planned facility in Brisbane, Australia. Furthermore, in February 2025, DARPA selected PsiQuantum to advance to the final phase of its Utility-Scale Quantum Computing Program, a validation of its technology by a leading U.S. government research agency. These collaborations demonstrate the company's ability to attract both public and private sector partners to bring its technology from the lab to a real-world application.
- Technological Advancement and Patented IP: PsiQuantum continues to advance its core technology, which is based on a photonic approach that leverages standard semiconductor manufacturing. The company announced its new Omega chipset in February 2025, which is purpose-built for utility-scale quantum computing. It has also recently launched "Construct," a dedicated software suite for designing fault-tolerant quantum algorithms. This dual focus on both hardware and software, combined with its large portfolio of patents, provides a significant competitive advantage by creating a comprehensive, end-to-end solution for a fully fault-tolerant quantum computer.
- Technological Feasibility and Timeline Risks: PsiQuantum’s "all-in" strategy to build a fault-tolerant, million-qubit quantum computer using photonics remains unproven and faces significant technological hurdles. While the company claims its approach is a "grand engineering challenge, not a science experiment," critics, including prominent quantum physicists, have questioned whether a technologically feasible pathway to a fault-tolerant machine exists. The company’s timeline has also been a point of contention; a quantum physicist from the University of Science and Technology of China pointed out that PsiQuantum's original 2020 delivery date has slipped to 2029, raising concerns about its ability to execute on its promises.
- Intense Competition and Market Uncertainty: PsiQuantum operates in a highly competitive market where different qubit technologies (superconducting, trapped-ion, photonic, etc.) are vying for dominance. Competitors like IBM, Google, and Quantinuum have already demonstrated working quantum computers and are making steady progress on their respective roadmaps. The market is still uncertain about which technology will ultimately be the most scalable and commercially viable. This uncertainty poses a significant risk to PsiQuantum, as a major breakthrough from a rival using a different technology could swiftly erode its market position and investor confidence.
- High Capital Requirements and Funding Risks: PsiQuantum’s ambitious plan requires an immense amount of capital, with cost estimates for a single machine running into the billions of dollars. While the company recently secured a large funding round, its business model is highly sensitive to shifts in investor sentiment and macroeconomic headwinds. Its reliance on large, successive funding rounds to continue its R&D and manufacturing efforts exposes the company to a fundamental financial risk; a failure to raise future capital could bring the entire project to a halt, as there is little opportunity for incremental revenue until a commercial-scale machine is operational.
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