Introducing Quantinuum: The World's Largest Integrated Quantum Computing Company

Quantinuum is a result of the combination of two global leaders in quantum computing: Honeywell Quantum Solutions and Cambridge Quantum

November 30, 2021

Cambridge, UK and Broomfield, Colorado, November 30th, 2021 — The two leading companies in the quantum computing industry have combined to create Quantinuum, thereby accelerating the development of quantum computing and innovation of quantum technologies in a platform agnostic manner to deliver real-world quantum-enabled solutions for some of the most intractable problems that classical computers have not been able to solve. 

Cambridge Quantum, the pioneer in quantum software, operating systems, and cybersecurity, and Honeywell Quantum Solutions, which has built the highest-performing quantum hardware, based on trapped-ion technologies, today announced they have satisfied all of the conditions required to close the business combination and formed the new company, now called Quantinuum. 

“Quantinuum is now the largest and most advanced integrated quantum computing company in the world,” said Ilyas Khan, CEO of the new company and founder of Cambridge Quantum. “By uniting the best-in-class quantum software available with the highest performing hardware available, we are uniquely positioned to bring real, quantum computing products and solutions to large, high-growth markets in the near term, the medium term and the longer term as quantum computers scale in capacity and quality. We are science led, and enterprise driven, and our scale and global presence in this most critical of technologies will provide leadership in each of the key areas that constitute the ‘must haves’ for quantum computing to deliver real world solutions to all our customers and partners.”

Quantinuum will globally launch a quantum cyber security product in December 2021, and later in 2022, an enterprise software package that applies quantum computing to solve complex scientific problems in pharmaceuticals, materials science, specialty chemicals and agrochemicals.  It will also announce major upgrades to the System Model H1 hardware technologies, Powered by Honeywell, which has the highest measured quantum volume, as well as industry breakthroughs that reduce errors thereby continuing to progress credibly towards the development of a fault-tolerant quantum system. In this respect, the H-Series quantum computers continue the trend of meeting and exceeding the deliverables that the company has previously committed to as part of its hardware roadmap.

“I am thrilled to help lead our new company, which will positively change the world through the application of quantum computing. Our scientists continue to work hard to develop the best quantum software and hardware technologies available and I am excited to be able to offer these to customers on an on-going basis,” said Tony Uttley, President and Chief Operating Officer of Quantinuum. “The next few weeks and months are going to be extremely active for Quantinuum as we increase the pace in deriving unique value from today’s quantum computers especially in cyber security. However, in addition to cyber security, our products will include solutions for drug discovery and drug delivery, materials science, finance, natural language processing, as well as optimization, pattern recognition, and supply chain and logistics management.”

Quantinuum was formed six months after Honeywell announced that Honeywell Quantum Solutions, its quantum computing division, would separate from the company and combine with Cambridge Quantum. Honeywell is the largest shareholder of Quantinuum with an approximately 54 percent ownership stake in the new company. Additionally, on top of this stake, Honeywell has also invested nearly $300 million in the new venture, ensuring that Quantinuum is well capitalized at inception. The other major shareholder is Ilyas Khan the founder of Cambridge Quantum, and the CEO of Quantinuum with an approximately 23% holding. Other shareholders include IBM and JSR Corp from Japan.

Honeywell is also a supplier to Quantinuum, supporting the manufacturing process for the company’s proprietary ion-traps. Additionally, Honeywell is a customer of Quantinuum on various projects across its business units.

Quantinuum has a staff of almost 400 people at inception, with offices in the United Kingdom, United States, Japan, and Germany.  Of those employees, approximately 300 are scientists working on technical teams to advance the hardware and develop software solutions.

Quantinuum will maintain a European headquarters in Cambridge, UK and a North American headquarters in Colorado, US. The company will continue to be entirely platform agnostic in its choice of hardware to provide total portability to its clients and ensure the most effective performance for the problems being solved. 

For more information, visit www.quantinuum.com.

This release contains certain statements that may be deemed “forward-looking statements” within the meaning of Section 21E of the Securities Exchange Act of 1934. All statements, other than statements of historical fact, that address activities, events or developments that we or our management intends, expects, projects, believes or anticipates will or may occur in the future are forward-looking statements. Such statements are based upon certain assumptions and assessments made by our management in light of their experience and their perception of historical trends, current economic and industry conditions, expected future developments and other factors they believe to be appropriate. The forward-looking statements included in this release are also subject to a number of material risks and uncertainties, including but not limited to economic, competitive, governmental, and technological factors affecting our operations, markets, products, services and prices. Such forward-looking statements are not guarantees of future performance, and actual results, developments and business decisions may differ from those envisaged by such forward-looking statements. The Honeywell trademark is used under license from Honeywell International Inc. Honeywell makes no representations or warranties with respect to this service.

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. 

July 14, 2026
Quantinuum, Rolls-Royce, Riverlane and University of Edinburgh Sign Agreement to Explore Quantum Computing for Industrial Design and Simulation
  • Collaboration will explore how fault-tolerant quantum computing could advance complex fluid dynamics simulations, including for uses in gas turbine design
  • Project aims to combine Quantinuum’s Helios platform, the world’s most accurate commercial quantum computer1, Rolls-Royce’s industrial applications, Riverlane’s quantum error correction and fault-tolerant algorithm expertise, and EPCC’s supercomputing expertise
  • Collaboration will help advance the UK quantum strategy by developing the quantum technologies and hybrid computing capabilities needed for future industrial applications

BROOMFIELD, Colo. and CAMBRIDGE, UK, July 14th, 2026 – Quantinuum Inc. (NASDAQ:QNT), Rolls-Royce, Riverlane and EPCC, the UK National Supercomputing Centre based at the University of Edinburgh, today announced an agreement to explore the quantum computing capabilities needed in future industrial workflows, such as gas turbine design.

Under the agreement, Quantinuum will provide access to its quantum systems and software environment; Rolls-Royce will contribute industrial design use cases and domain expertise; Riverlane will contribute quantum error correction and algorithmic expertise; and EPCC will contribute supercomputing expertise and hybrid workflow integration.

Complex fluid dynamics simulations are central to gas turbine design, but they can require substantial computing resources as models become more detailed. In what is expected to be a multi-year collaboration, the partners will explore how fault-tolerant quantum computers could work alongside supercomputers to address this bottleneck, and accurately model fluid dynamics inside gas turbines.

“The computing demands of simulating complex fluid dynamics are a major challenge in industrial design, and exploring how quantum computing can complement today’s supercomputers is an important step toward addressing them,” said Dr. Rajeeb Hazra, President and CEO of Quantinuum. “This collaboration will help develop and test the hybrid quantum-classical algorithms needed for future industrial applications.”

The collaborators plan to test key computational building blocks for industrially relevant quantum algorithms on Quantinuum’s Helios quantum computer and assess how these could scale on planned future systems, such as Sol and Apollo.

This project builds on prior collaborations between Rolls-Royce, Riverlane and EPCC that laid the foundations for understanding key algorithmic, error correction and data requirements for tackling fluid dynamic simulations with commercial quantum computers.

“We have been developing and improving algorithms for hybrid fault-tolerant applications for almost five years with Riverlane, using classical emulators in collaboration with EPCC. This agreement marks the start of an exciting new phase where we work together to explore their implementations on Quantinuum’s hardware,” said Leigh Lapworth, Fellow in Computational Science at Rolls-Royce. “Applications development is a multi-year activity and if we want to be in a position to benefit from teraQuOp devices, we have to start now, co-developing the algorithms, hardware and software.”

“Riverlane specialises in quantum error correction (QEC), as the critical technology that will ultimately unlock large fault tolerant quantum computing, and fault tolerant applications for various industries," said Steve Brierley, CEO and Founder of Riverlane. "Building on our work with Rolls-Royce and EPCC, collaborating with Quantinuum will help us explore how fault-tolerant quantum computing and hybrid quantum-HPC approaches can accelerate the path to industrial quantum computing."

EPCC will contribute its expertise in high-performance computing, simulations and the software interfaces needed to connect quantum and classical systems. Its role includes exploring how different parts of an algorithm can be compiled, emulated and executed across classical and quantum resources, including pre- and post-processing steps required for hybrid compute workflows.

“Quantum computing will be most valuable when users can exploit it within a wider computing environment, and EPCC has been working towards hybrid HPC and quantum since my appointment as a Chancellor’s Fellow in 2023,” said Oliver Thomson Brown, Quantum Group lead at EPCC. “EPCC’s mission is to accelerate the effective use of novel computing across industry and academia, and this project is a natural fit with the goals of the UK’s first National Supercomputing Centre.”

The UK’s quantum computing mission aims to develop accessible, UK-based quantum computers capable of one trillion error-free operations, known as “teraQuOp” systems. The collaboration and its anticipated multi-year timeline support the UK Government’s quantum computing mission and reflect the strength and maturity of the UK’s quantum and advanced computing ecosystem in moving from foundational research toward industrially relevant hybrid applications.

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 trapped-ion based 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.2 Quantinuum has active engagements with market leaders across pharmaceuticals, material science, financial services, and government and industrial markets, as well as academic and research institutions globally.

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

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

Cautionary Statement Concerning Forward-Looking Statements

This press release contains certain statements that may be deemed “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. Forward-looking statements include all statements that are not historical facts. The words “anticipate,” “assume,” “believe,” “continue,” “could,” “estimate,” “expect,” “intend,” “may,” “plan,” “potential,” “predict,” “project,” “future,” “will,” “seek,” “foreseeable,” the negative version of these words, or similar terms and phrases are intended to identify forward-looking statements. Such statements are based on certain assumptions and assessments made by our management in light of their experience and their perception of historical trends, current economic and industry conditions, expected future developments and other factors they believe to be appropriate. The forward-looking statements included in this release are also subject to a number of material risks and uncertainties, including but not limited to economic, competitive, governmental, and technological factors affecting our operations, markets, products, services and prices. New factors emerge from time to time, and it is not possible for Quantinuum to predict all such factors. Any forward-looking statement speaks only as of the date on which it is made, and, except as required by law, Quantinuum does not undertake any obligation to update or revise any forward-looking statement, whether as a result of new information, future events or otherwise.

1 Based on its high two-qubit gate fidelity supporting 98 physical qubits.

2 As of December 31, 2025.

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June 21, 2026
Quantinuum Announces Strategic Collaboration with HPE on Quantum-HPC Integration for Enterprise
  • Strategic collaboration aims to establish framework for combining quantum computing with HPC and AI environments
  • The collaboration will engage enterprise customers seeking hybrid quantum-classical solutions across high-value scientific and industrial use cases

Broomfield, CO and Houston, TX, June 22nd, 2026 — Quantinuum (NASDAQ:QNT), a leading quantum computing company, today announced a strategic collaboration with HPE focused on integrating quantum computing with high-performance computing (HPC) and AI infrastructure.

“We envision a future where quantum computers work seamlessly with classical computers to unlock scientific discovery and practical, real-world value for industries,” said Dr. Rajeeb Hazra, President and CEO of Quantinuum. “As a leader in trapped-ion quantum computing, we look forward to integrating our high-fidelity systems with leading classical architectures. This collaboration with HPE represents an important step in our broader ecosystem approach to delivering practical, hybrid solutions to our enterprise, public sector, and research customers.”

The strategic collaboration is intended to develop quantum computing technologies that become a practical extension of a customer’s HPC and AI strategy. Together, the companies will explore hybrid reference architectures, validate application workflows, and engage with select customers on approaches that combine quantum technology with large-scale classical environments.

“Accelerating scientific and industrial discovery requires a deeply integrated, hybrid approach that brings together the best of classical supercomputing, AI, and quantum technology,” said Masoud Mohseni, Director of HPE Quantum and Senior Distinguished Technologist at HPE Labs. “Through this collaboration with Quantinuum we will be integrating our systems  toward a scalable infrastructure for classical-quantum applications.”

Under the collaboration, Quantinuum will provide access to quantum systems, technical expertise, and its developer environment, while HPE will contribute high performance computing systems and large-scale deployment capabilities and expertise. Together, the companies plan to collaborate on technical integration, interoperability, benchmarking, proposal development, and customer engagement.

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.1  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 holds PhDs and Master’s degrees. Quantinuum’s headquarters is in Broomfield, Colorado, with additional facilities across the United States, United Kingdom, Germany, Japan, Qatar, and Singapore.

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

Cautionary Statement Concerning Forward-Looking Statements

This press release contains certain statements that may be deemed “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. Forward-looking statements include all statements that are not historical facts. The words “anticipate,” “assume,” “believe,” “continue,” “could,” “estimate,” “expect,” “intend,” “may,” “plan,” “potential,” “predict,” “project,” “future,” “will,” “seek,” “foreseeable,” the negative version of these words, or similar terms and phrases are intended to identify forward-looking statements. Such statements are based on certain assumptions and assessments made by our management in light of their experience and their perception of historical trends, current economic and industry conditions, expected future developments and other factors they believe to be appropriate. The forward-looking statements included in this release are also subject to a number of material risks and uncertainties, including but not limited to economic, competitive, governmental, and technological factors affecting our operations, markets, products, services and prices. New factors emerge from time to time, and it is not possible for Quantinuum to predict all such factors. Any forward-looking statement speaks only as of the date on which it is made, and, except as required by law, Quantinuum does not undertake any obligation to update or revise any forward-looking statement, whether as a result of new information, future events or otherwise.

1
As of December 31, 2025.

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June 5, 2026
Quantinuum Announces Closing of Upsized Initial Public Offering

Broomfield, CO, June 5th, 2026 — Quantinuum Inc. (Nasdaq: QNT) (“Quantinuum”) today announced the closing of its upsized initial public offering of 28,000,000 shares of its Class A common stock at an initial public offering price of $60.00 per share. All of the shares were offered by Quantinuum. The aggregate gross proceeds from the offering, before deducting underwriting discounts and commissions and other offering expenses were $1.68 billion. Quantinuum’s Class A common stock is listed on the Nasdaq Global Market under the ticker symbol “QNT.”

J.P. Morgan and Morgan Stanley (in alphabetical order) acted as joint lead active book-running managers for the offering; Jefferies and Evercore ISI also acted as active book-running managers; BofA Securities, UBS Investment Bank, Cantor, Mizuho, Needham & Company, Societe Generale and TD Cowen acted as joint-book running managers; and Craig-Hallum and Rosenblatt acted as co-managers for the offering.

A registration statement relating to this offering was declared effective by the Securities and Exchange Commission (the “SEC”) on June 3, 2026. A prospectus relating to and describing the terms of the offering has been filed with the SEC and is available on the SEC’s website at www.sec.gov. The offering is being made available only by means of a prospectus. Copies of the prospectus may be obtained from: J.P. Morgan Securities LLC, c/o Broadridge Financial Solutions, 1155 Long Island Avenue, Edgewood, New York 11717 or by email at prospectus-eq_fi@jpmchase.com and postsalemanualrequests@broadridge.com; Morgan Stanley & Co. LLC, 180 Varick Street, 2nd Floor, New York, New York 10014, Attention: Prospectus Department or by email at prospectus@morganstanley.com; Jefferies LLC, Attn: Equity Syndicate Prospectus Department, 520 Madison Avenue, New York, New York 10022, by telephone at (877) 821-7388 or by email at Prospectus_Department@Jefferies.com; or Evercore Group L.L.C., Attention: Equity Capital Markets, 55 East 52nd Street, 35th Floor, New York, New York 10055, by telephone at 888-474-0200 or by email at ecm.prospectus@evercore.com.

This press release does not constitute an offer to sell or the solicitation of an offer to buy these securities, nor shall there be any sale of these securities in any state or jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such state or jurisdiction.

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 as of December 31, 2025. Quantinuum has active engagements with market leaders across pharmaceuticals, material science, financial services, and government and industrial markets. Quantinuum’s headquarters is in Broomfield, Colorado, with additional facilities across the United States, United Kingdom, Germany, Japan, Qatar and Singapore.


Quantinuum:

Quantinuum Investor Relations
investors@quantinuum.com

(855) 888-7686

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