Quantum Circuits, Inc.
Building quantum computers designed to scale
77 employees · est. 2015 · New Haven, United States
Riverlane
Riverlane is the world leader in Quantum Error Correction (QEC), the technology that unlocks quantum computing's promise
212 employees · est. 2016 · Cambridge, United Kingdom
Quantum Circuits, Inc. is the older company (2015 vs 2016); Riverlane is the larger of the two.
Side-by-Side Comparison
| Metric | Quantum Circuits, Inc. | Riverlane |
|---|---|---|
| Founded | ||
| Founded | 2015 older | 2016 |
| Headquarters | ||
| Headquarters | New Haven, United States | Cambridge, United Kingdom |
| Employees | ||
| Employees | 77 | 212 larger |
| Industry | ||
| Industry | IT, Manufacturing, Quantum | IT, Information Technology, Quantum |
| Funding Stage | ||
| Funding Stage | Acquired | Series C |
| Total Funding | ||
| Total Funding | $654.50M | $99.23M |
| Funding Rounds | ||
| Funding Rounds | 6 | 11 |
| Services | ||
| Services | Quantum Error Detection, Real-Time Control Flow, Error Detection Handling, Development of Quantum Algorithms, Quantum Application Hosting | Quantum Error Correction hardware and software solutions, QEC technology development and deployment, QEC circuit building and simulation, Partnerships with quantum computer manufacturers and HPC centres |
| Target Customers | ||
| Target Customers | Quantum Researchers, Tech Companies, Developers in Quantum Computing, Businesses Exploring Quantum Solutions, Academic Institutions in Quantum Studies, Innovation-focused Enterprises | Quantum computer manufacturers, Qubit control specialists, High-Performance Computing Centres, National Laboratories, Quantum scientists and engineers |
| Taxonomy | ||
| Taxonomy | Quantum Computing, Superconducting Devices, Quantum Circuits, Error Correction, Scalable Architecture, Quantum Algorithms, Full-Stack Platform, Modular Architecture, Fault Tolerant Quantum Computing, Quantum Software, Quantum Hardware, Dual-Rail Qubit, Quantum Electrodynamics, RF Engineering, Mechanical Engineering | Quantum Error Correction, QEC Chips, Quantum Computing, Quantum Hardware, Quantum Software, Qubit Stabilization, Error Correction Technology, Quantum Ecosystem Development, High-Performance Computing, Quantum Instrument Engineering, Quantum Research Collaboration, Data Error Correction, System Defect Fixing, Quantum Computer Integration, Proprietary QEC Technology |
| Website | ||
| Website | quantumcircuits.com | riverlane.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 Riverlane
Riverlane, founded in 2016 and headquartered in the United Kingdom, is the pioneering leader in Quantum Error Correction (QEC), a critical technology in quantum computing. Their motto, "Riverlane is the world leader in Quantum Error Correction (QEC), the technology that unlocks quantum computing's p...
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Funding, hiring, leadership and stack changes at Quantum Circuits, Inc. and Riverlane — by email.
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Compiled from the BounceWatch company index. We last looked at Quantum Circuits, Inc. on 2 Mar 2026, and Riverlane on 13 Feb 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.