Quantum Circuits, Inc. vs SpinQ Technology Inc.
Quantum Circuits, Inc.
Building quantum computers designed to scale
77 employees · est. 2015 · New Haven, United States
Quantum Circuits, Inc. is the older company (2015 vs 2018); Quantum Circuits, Inc. is the larger of the two.
Side-by-Side Comparison
| Metric | Quantum Circuits, Inc. | SpinQ Technology Inc. |
|---|---|---|
| Founded | ||
| Founded | 2015 older | 2018 |
| Headquarters | ||
| Headquarters | New Haven, United States | Shenzhen, China |
| Employees | ||
| Employees | 77 larger | 25 |
| Industry | ||
| Industry | IT, Manufacturing, Quantum | Hardware, Quantum |
| Funding Stage | ||
| Funding Stage | Acquired | Corporate Round |
| Total Funding | ||
| Total Funding | $654.50M | $129.50M |
| Funding Rounds | ||
| Funding Rounds | 6 | 2 |
| Services | ||
| Services | Quantum Error Detection, Real-Time Control Flow, Error Detection Handling, Development of Quantum Algorithms, Quantum Application Hosting | Superconducting Quantum Products & Services, NMR Quantum Products & Services, Quantum Computing Cloud Platform & Software, Quantum Education Solution |
| Target Customers | ||
| Target Customers | Quantum Researchers, Tech Companies, Developers in Quantum Computing, Businesses Exploring Quantum Solutions, Academic Institutions in Quantum Studies, Innovation-focused Enterprises | Industries (e.g. healthcare, finance, technology), Universities, Science Institutions |
| Taxonomy | ||
| Taxonomy | Quantum ComputingSuperconducting DevicesQuantum CircuitsError CorrectionScalable ArchitectureQuantum Algorithms +9 | Quantum Computing SolutionsSuperconducting Quantum ChipsNMR Quantum ComputersQuantum Computing SoftwareTechnology ResearchCommercial Implementation +9 |
| Website | ||
| Website | quantumcircuits.com | spinquanta.com |
About Quantum Circuits, Inc.
Quantum Circuits, Inc., headquartered in the United States, is at the forefront of the quantum computing revolution, developing a full-stack platform tailored for scalability using superconducting devices. Founded in 2015, the company's mission is encapsulated in its slogan: "Building quantum comput...
About SpinQ Technology Inc.
SpinQ Technology Inc. is a quantum computing startup founded in 2018 with a mission to industrialize and popularize quantum computing. The company's strategy encompasses technology research and commercial implementation, leading to a comprehensive industry layout including superconducting and NMR qu...
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Compiled from the BounceWatch company index. We last looked at Quantum Circuits, Inc. on 2 Mar 2026, and SpinQ Technology Inc. on 1 Dec 2024. 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.
