Quantinuum Sets Industry Record for Hardware Performance with New Quantum Volume Milestone

Customers the first to benefit as Quantinuum extends its lead in full-system quantum computing performance

February 23, 2023

Broomfield, Colorado, February 23rd, 2023Quantinuum, the world’s largest standalone integrated quantum computing company, today announced its H1 generation quantum processors set two performance records in quick succession, with its H1-1 achieving a quantum volume (QV) of 16,384 (214), and then 32,768 (215). The achievements represent a high-water mark for the quantum computing industry, based on the widely recognized QV benchmark, which was originally developed by IBM to reflect a quantum computer’s general capability.

“Quantum volume is crucial to the ongoing development and research necessary to create the bigger and better quantum computers needed to achieve a quantum advantage,” said Paul Smith-Goodson, Analyst, Moor Insights and Strategy. “Quantinuum has prioritized increasing its quantum volume since the start, which has not only benefitted its current applications but set itself up to be the benchmark in achieving quantum advantage.”

This marks the eighth time in less than three years that Quantinuum’s H-Series, which is based on quantum charge coupled device technology, has set an industry benchmark, and fulfills a public commitment made in March 2020 to increase the performance of the H-Series quantum processors, Powered by Honeywell, by an order of magnitude each year for five years.

“This is a remarkable milestone for quantum computing and inline with the technology we have seen from Quantinuum,” said Marco Pistoia, Ph.D., Distinguished Engineer and Head of Global Technology Applied Research, JPMorgan Chase. “As evidenced in our research, we have produced groundbreaking algorithms on their quantum computers for the past several years, which has allowed us at JPMorgan Chase to be on the leading edge of quantum computing. We look forward to continuing to make more breakthroughs in quantum computing together.”

To provide more detail on the underlying technological improvements that led to the new benchmark, Quantinuum revealed details of recent performance enhancements to the H-Series, including reductions in the phase noise of the device’s lasers, reducing two-qubit gate error and memory error, and improvements to elements of the calibration process. Scientists at Quantinuum also shared insights into how the improvements that resulted in the new benchmark reduce the time it takes for algorithms to run, improve the ability to run quantum error correction codes, and lead to better results for the scientists and researchers using the H-Series hardware.

“We are exactly where we expect to be on our roadmap,” said Tony Uttley, President and COO of Quantinuum. “Our hardware team continues to deliver technical improvements right across the board, and our approach of continuously upgrading our quantum computers means that these are felt immediately by our customers.”

A five-digit QV number is very positive for real-time quantum error correction (QEC) because of the low error rates, number of qubits, and very long circuits. QEC is a critical ingredient to large-scale quantum computing and the sooner it can be explored on today’s hardware, the faster it can be demonstrated at large-scale.

“With the technology improving fast, we do everything we can to help our customers and the community understand how we are achieving such rapid progress,” said Jenni Strabley, Senior Director of Offering Management at Quantinuum. “Which is why we have published the data behind the results we announced today. Our goal is to accelerate quantum computing, and that is something we can only achieve as an industry.”

Further details on the Quantum Volume tests: https://quantum-journal.org/papers/q-2022-05-09-707/ 

Quantinuum’s GitHub repository for Quantum Volume data: https://github.com/CQCL/quantinuum-hardware-quantum-volume 

Quantinuum’s GitHub repository for hardware specifications: https://github.com/CQCL/quantinuum-hardware-specifications 

Read more about the Quantum Volume achievements in this blogpost

About Quantinuum

Quantinuum is the world’s largest integrated standalone quantum computing company, formed by the combination of Honeywell Quantum Solutions’ world leading hardware and Cambridge Quantum’s class leading middleware and applications. Science led and enterprise driven, Quantinuum accelerates quantum computing and the development of applications across chemistry, cybersecurity, finance, and optimization. Its focus is to create scalable and commercial quantum solutions to solve the world’s most pressing problems, in fields such as energy, logistics, climate change, and health. The company employs over 480 people including 350 scientists, at nine sites in the US, Europe, and Japan.

About Quantinuum

Quantinuum, the world’s largest integrated quantum company, pioneers powerful quantum computers and advanced software solutions. Quantinuum’s technology drives breakthroughs in materials discovery, cybersecurity, and next-gen quantum AI. With over 500 employees, including 370+ scientists and engineers, Quantinuum leads the quantum computing revolution across continents. 

April 22, 2026
Honeywell Announces Quantinuum’s Confidential Submission of Draft Registration Statement for Proposed Initial Public Offering

Source: PRNewswire - Honeywell

Charlotte, N.C., April 22, 2026 — Honeywell (NASDAQ: HON) today announced that Quantinuum LLC (“Quantinuum” or the “Company”), which is majority owned by Honeywell, confidentially submitted a draft registration statement on Form S-1 to the U.S. Securities and Exchange Commission (the “SEC”) on February 17, 2026, relating to the proposed initial public offering of Quantinuum’s common stock. The number of shares to be offered and the price range for the proposed offering have not yet been determined. The offering is subject to market and other conditions and the completion of the SEC’s review process.

This press release is being made pursuant to, and in accordance with, Rule 135 under the Securities Act of 1933, as amended (the “Securities Act”), and shall not constitute an offer to sell, or the solicitation of an offer to buy, any securities. Any offers, solicitations or offers to buy, or any sales of securities, will be made in accordance with the registration requirements of the Securities Act.

Contacts:

Media
Stacey Jones
(980) 378-6258
Stacey.Jones@honeywell.com

Investor Relations
Mark Macaluso
(704) 627-6118
Mark.macaluso@honeywell.com

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April 16, 2026
RIKEN Scales Quantum-Supercomputing in Japan with Quantinuum System Upgrade

TOKYO — April 14, 2026 — Quantinuum, a leading quantum computing company, today announced that RIKEN, Japan’s premier national research institute, has procured its System Model H2 quantum computer to scale the capability of “Reimei-Fugaku,” a hybrid quantum-supercomputer platform in Japan.

The Reimei-Fugaku platform represents the frontier of computing technology. Launched in the spring of 2025, it combines Quantinuum’s "Reimei" quantum system with RIKEN’s "Fugaku," one of the world’s fastest supercomputers—more formally known as a high-performance computing (HPC) system.

Now, the hybrid compute platform is getting a substantial upgrade. Earlier this month, Quantinuum delivered its H2 system to RIKEN’s research facility near Tokyo, where assembly is already underway to replace its predecessor, System Model H1, which Reimei has been based on to date. The newer-generation, 56-qubit system is engineered for high-fidelity operations that can reduce time-to-solution, enable larger workloads, and support higher-value applications.

Technology leaders see hybrid compute systems as a practical way to overcome the limits of classical HPC. By combining the significant data-processing power of HPC with a quantum computer’s ability to model complex molecules and materials, researchers could be enabled to solve specialized mathematical problems that are impractical for classical systems to handle alone.  

Researchers have already demonstrated this potential using the current Reimei-Fugaku platform. In a workflow with relevance potentially extending to future pharmaceutical applications, they successfully simulated biomolecular reactions at an accuracy that would be infeasible for HPC to achieve in isolation.

With multiple studies in chemistry and materials science already underway on the platform, this H2 upgrade is expected to accelerate research and unlock even more complex scientific discoveries across disciplines.

Dr. Mitsuhisa Sato, Division Director of the Quantum-HPC Hybrid Platform Division, RIKEN Center for Computational Science, said: “Since its installation in February 2025, Reimei H1 has been widely used by JHPC-quantum users and has delivered significant results, thanks to its high fidelity and flexible qubit connectivity. The upgrade to H2 is exactly what we have been eagerly anticipating, and with its 56 qubits, we expect it to play a key role in demonstrating quantum advantage through quantum–HPC hybrid computing.”

Dr. Rajeeb Hazra, President and CEO of Quantinuum, said: “We believe RIKEN’s decision to continue adopting Quantinuum systems to meet its ambitious objectives is a validation of our technology roadmap and a reflection of the success of our valued partnership. With Quantinuum and RIKEN’s combined leadership in quantum and HPC, respectively, we expect to continue pushing the boundaries of computing to address some of the most critical and complex challenges facing science and industry today.”

This development reflects the continued progress of Quantinuum and RIKEN’s collaboration to advance quantum-HPC hybrid infrastructure in Japan. Quantinuum intends to continue working with the country’s research community to accelerate real-world use cases and contribute to the growth of its quantum ecosystem.

About RIKEN

RIKEN, a National Research and Development Agency, is Japan’s leading national comprehensive research institution renowned for high-quality research in a diverse range of scientific disciplines. Founded in 1917, initially as a private research foundation, RIKEN has grown rapidly in size and scope, today encompassing a network of world-class research centers and institutes across Japan.

About Quantinuum

Quantinuum is a leading quantum computing company offering a full-stack platform designed to make quantum computing deployable in real-world environments. The company has commercially deployed multiple generations of quantum systems built on the well-established QCCD architecture, which it has implemented with novel designs and capabilities to achieve the industry’s highest accuracy levels based on average two-qubit gate fidelity.[i] Quantinuum has active engagements with market leaders across pharmaceuticals, material science, financial services, and government and industrial markets.

The company has a global workforce of approximately 700 employees, including top scientists and researchers. Over 70% of its technology team hold PhDs. Quantinuum’s headquarters is in Broomfield, Colorado, with additional facilities across the United States, United Kingdom, Germany, Japan, and Singapore.  

For more information, please visit www.quantinuum.com.  

[i] As of December 31, 2025.

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March 18, 2026
Nitesh Sharan Joins Quantinuum as Chief Financial Officer

March 18, 2026 – BROOMFIELD, Colo. – Quantinuum, a leading quantum computing company, today announced the appointment of Nitesh Sharan as Chief Financial Officer (CFO), effective April 6, 2026.  

Mr. Sharan brings more than 25 years of global finance experience across technology, consumer products and consulting. He joins the company after nearly five years as CFO of SoundHound AI, Inc., where he led the company through its public listing in 2022 and oversaw strategic financial planning, accounting, corporate strategy, human resources, legal and intellectual property. 

“Nitesh brings an exceptional combination of financial leadership, operational rigor and experience scaling technology companies,” said Dr. Rajeeb Hazra, President & CEO of Quantinuum. “As Quantinuum accelerates the commercialization of quantum computing, his experience guiding companies through complex growth and capital market environments will be pivotal.”

Prior to joining SoundHound AI, Mr. Sharan spent more than 5 years at Nike, where he held several leadership roles, including Vice President of Investor Relations & Treasurer, Vice President of Corporate Finance & Treasurer, and CFO of Global Operations & Technology. Prior to joining Nike, he spent 15 years in senior leadership roles at Hewlett-Packard and began his career as a consultant at Accenture. 

Mr. Sharan is a Chartered Financial Analyst (CFA) charterholder. He earned his MBA from Northwestern University’s Kellogg School of Management and his bachelor’s degree from Case Western Reserve University. Originally from Cleveland, Ohio, he currently resides in Portland, Oregon. He serves on a number of boards, including Activate, an organization that supports deep science entrepreneurs in commercializing their innovations, and as a Trustee of the Catlin Gabel School, a progressive K-12 independent school.

About Quantinuum

Quantinuum is a leading quantum computing company offering a full-stack platform designed to make quantum computing deployable in real-world environments. The company has commercially deployed multiple generations of quantum systems built on the well-established QCCD architecture, which it has implemented with novel designs and capabilities to achieve the industry’s highest accuracy levels based on average two-qubit gate fidelity1. Quantinuum has active engagements with market leaders across pharmaceuticals, material science, financial services, and government and industrial markets. 

The company has a global workforce of approximately 700 employees, including top scientists and researchers. Over 70% of its technology team hold PhDs. Quantinuum’s headquarters is in Broomfield, Colorado, with additional facilities across the United States, United Kingdom, Germany, Japan, and Singapore.  

For more information, please visit www.quantinuum.com.  

 1As of December 31, 2025.

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