Alice & Bob vs PsiQuantum
PsiQuantum
Building the world’s first useful quantum computers
628 employees · est. 2015 · Palo Alto, United States
PsiQuantum is the older company (2020 vs 2015); PsiQuantum is the larger of the two.
Side-by-Side Comparison
| Metric | Alice & Bob | PsiQuantum |
|---|---|---|
| Founded | ||
| Founded | 2020 | 2015 older |
| Headquarters | ||
| Headquarters | Paris, France | Palo Alto, United States |
| Employees | ||
| Employees | 248 | 628 larger |
| Industry | ||
| Industry | IT, Information Technology, Quantum | Hardware, IT, Quantum |
| Funding Stage | ||
| Funding Stage | Not Funded/Unknown | Series E |
| Total Funding | ||
| Total Funding | $152.15M | $2.98B |
| Funding Rounds | ||
| Funding Rounds | 11 | 9 |
| Services | ||
| Services | Quantum Computer Design, Quantum Hardware Testing, Quantum Advantage Consultation, Error Correction Solutions | Development of Utility-Scale Quantum Computers, Quantum Software Development, Quantum Circuit Design, Consulting for Industrial Quantum Applications |
| Target Customers | ||
| Target Customers | Tech Innovators, Research and Development Teams, Industries Preparing for Quantum Computing, High-Performance Computing Professionals | Quantum Algorithm Researchers, Healthcare and Oncology Researchers, Industrial and Technological Partners, Semiconductor Manufacturing Companies, Governmental Organizations |
| Taxonomy | ||
| Taxonomy | Quantum ComputingCat QubitsError CorrectionFault-tolerant ComputingUniversal Quantum ComputersSuperconducting Circuits +9 | Quantum ComputingPhotonicsQuantum Error CorrectionSemiconductorsQuantum AlgorithmsQuantum Technology +9 |
| Website | ||
| Website | alice-bob.com | psiquantum.com |
About Alice & Bob
Alice & Bob, founded in 2020, is spearheading the quantum computing revolution with the motto, "Bringing mankind into the quantum world." Positioned as a leader in the sector, the company has effective solutions with its cat qubits that are inherently error-corrected. This innovative design signific...
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...
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Compiled from the BounceWatch company index. We last looked at Alice & Bob on 14 Nov 2025, and PsiQuantum on 8 Apr 2026. Where a field is blank here, it means we have not recorded it — not that the answer is zero. How we source and date this.
