PsiQuantum logo — Building the world’s first useful quantum computers.

PsiQuantum

Building the world’s first useful quantum computers.

Founded 2015 United States Palo Alto, United States 628 employees Series E Total: $2.98B Hardware, IT +2

General Information

Company Name PsiQuantum
Founded Year 2015
Location United States Palo Alto, United States
Employees 628
Industries Hardware, IT, Quantum +1
Funding Stage Series E
Business Model B2B, Platform, SaaS
Revenue Model Licensing, Service Fee, Subscription
Social

BounceWatch is an independent company data service, not affiliated with PsiQuantum. To contact PsiQuantum, visit psiquantum.com.

Is this your company?

Confirm with your work e-mail, get the Verified badge and keep this profile correct yourself. Search engines and AI assistants read it every day.

Get Verified

About PsiQuantum

PsiQuantum, founded in 2015, stands at the forefront of revolutionary technological development, aiming to build the world’s first useful quantum computers. Their slogan, "Building the world’s first useful quantum computers," reflects their ambitious mission. Grounded in the belief that photonics is the key to a robust quantum computer, PsiQuantum emphasizes error correction in its approach to creating machines with at least 1,000,000 qubits.

Their interdisciplinary team combines expertise from quantum physics, semiconductors, and systems engineering, underpinning their focus on real-world problem-solving. With headquarters in the United States, PsiQuantum captures attention across various industries, including Hardware, IT, Quantum, and Semiconductor.

In a significant funding milestone, they secured a $1.00B Growth Equity VC investment on 01 June 2025, with contributions from a diverse array of investors such as Type One Ventures, Blackbird Ventures, Ribbit Capital, BlackRock, and Nvidia. This substantial backing highlights strong investor confidence in their transformative potential.

Taxonomy: Quantum Computing, Photonics, Quantum Error Correction, Semiconductors, Quantum Algorithms, Quantum Technology, Quantum Physics, Quantum Chips Manufacturing, Utility-scale Quantum Computing, Fault-tolerant Quantum Computing, Quantum Computing Applications, Healthcare Advances, Climate Solutions, Energy Innovations, Financial Technologies

Services & Products

Development of Utility-Scale Quantum Computers
Quantum Software Development
Quantum Circuit Design
Consulting for Industrial Quantum Applications

Target Customers

Quantum Algorithm Researchers Healthcare and Oncology Researchers Industrial and Technological Partners Semiconductor Manufacturing Companies Governmental Organizations

Funding Rounds & Investors (9)

View All
Funding Stage Amount Investors Lead Investors Date
Series E 1.00B 3
BlackRock, Temasek +1
17 Jun 2026
Growth Equity VC $1.00B 16
Type One Ventures, Blackbird Ventures +14
01 Jun 2025
Growth Equity VC $125.00M 1
Queensland Investment Corp.
01 Jun 2024
Secondary Market Undisclosed 1
Ischyros New York
01 Apr 2022
Series D $450.00M 5
Blackbird Ventures, BlackRock +3
01 Jul 2021
Late VC $215.00M 6
Founders Fund, Atomico +4
01 Apr 2020
Series C £179.00M 2
Playground Global, A&E Investments
01 Sep 2019
Series B Undisclosed 1
Founders Fund
01 Sep 2017
Spinout $13.20M 2
Playground Global, Redpoint
01 Jun 2016

PsiQuantum Alternatives & Competitors

View All Alternatives
PsiQuantum vs

Building quantum computers designed to scale

Acquired
77 employees
IT, Manufacturing
PsiQuantum vs
Aegiq
Aegiq United Kingdom

Building Photonic Quantum Computers to Enable Tomorrow’s Breakthroughs

32 employees
AI, Cyber Security
PsiQuantum vs

Bringing mankind into the quantum world

Not Funded/Unknown
248 employees
IT, Information Technology

FAQ About PsiQuantum

Building the world’s first useful quantum computers.
PsiQuantum was founded in 2015.
PsiQuantum is headquartered in Palo Alto, United States.
PsiQuantum operates in Hardware, IT, Quantum and Semiconductor. Its work centres on Quantum Computing, Photonics, Quantum Error Correction and Semiconductors. Its customers include Quantum Algorithm Researchers, Healthcare and Oncology Researchers and Industrial and Technological Partners.
PsiQuantum has a B2B, Platform and SaaS business model. Its revenue comes from Licensing, Service Fee and Subscription.
PsiQuantum has approximately 628 employees.
PsiQuantum has completed 9 funding rounds, raising a total of $2.98B. The latest funding stage is Series E.
PsiQuantum offers: Development of Utility-Scale Quantum Computers, Quantum Software Development, Quantum Circuit Design, Consulting for Industrial Quantum Applications.
Top alternatives and competitors to PsiQuantum include Quantum Circuits, Inc., Aegiq, Alice & Bob, Photonic Inc., Xanadu. These companies operate in related industries and serve comparable markets. You can compare them side by side on Bounce Watch.
PsiQuantum and Quantum Circuits, Inc. are both companies in similar industries. Compare their funding, team size, growth signals, and market position on Bounce Watch to see which one fits your needs.

Source: BounceWatch company record for PsiQuantum, https://bouncewatch.com/company/psiquantum, updated 18 June 2026. When citing, please name BounceWatch and link this page.

Analytics cookies (ours + Google). Cookie Policy

Book a demo 30 minutes