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PsiQuantum logo


Quantum computing will be a world-changing technology with the potential to unlock powerful advances in medicine, energy, finance and beyond. At PsiQuantum, we’re focused on building the world’s first useful quantum computer. A useful quantum computer requires at least 1,000,000 qubits and error correction. We believe photonics is the only path to building a useful quantum computer. Our team at PsiQuantum is a mix of quantum physicists, semiconductor, systems, and software engineers, system architects and more. Error correction is at the centre of everything we do; and we focus on solving real-world problems. If you’re interested in joining our team, we are always open to hearing from exceptional people interested in working on one of the defining technologies of our lifetime.

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Between 100 - 500 employees



Headquarters Location

700 Hansen Way, Palo Alto, CA 94304






Mark Thompson, Peter Shadbolt, Terry Rudolph, Jeremy O'Brien


Jeremy O'Brien

Funding Rounds


July 2021


April 2020


November 2019


September 2017


June 2016

Investors in PsiQuantum

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