Honeywell has announced a significant milestone in the evolution of quantum computing with a $600 million equity capital raise for Quantinuum, the company it formed in 2021 through the merger of Honeywell Quantum Solutions and Cambridge Quantum. The funding round values Quantinuum at $10 billion pre-money and marks one of the most significant investments to date in the quantum technology sector. It also signals growing confidence in the company’s ability to lead the charge toward commercially viable quantum computing.
The round attracted a mix of new and returning investors, underscoring the broad and deep interest in Quantinuum’s trajectory. New participants include Quanta Computer, NVentures—NVIDIA’s venture capital arm, QED Investors, MESH, and Korea Investment Partners. They join a roster of existing shareholders such as JPMorgan Chase, Mitsui, Amgen, Cambridge Quantum Holdings, Serendipity Capital, and Honeywell itself, all of whom reinvested in this round. The diversity of backers reflects the wide-ranging potential applications of quantum computing, spanning pharmaceuticals, finance, artificial intelligence, and cybersecurity.
This infusion of capital will support Quantinuum’s continued expansion and technological advancement, particularly as it prepares to launch Helios, its next-generation quantum computing system. Helios is expected to push the boundaries of performance and reliability, bringing the company closer to achieving universal fault-tolerant quantum computing. This long-sought milestone would enable quantum systems to operate reliably at scale, even in the presence of noise and errors.
Quantinuum stands out as a full-stack quantum computing provider, offering not only hardware but also software, developer tools, and end-user applications. Its platform includes InQuanto, a widely used tool for computational chemistry, which is helping researchers simulate molecular interactions with unprecedented accuracy. These capabilities are already driving scientific breakthroughs and have the potential to reshape industries by solving problems that are currently beyond the reach of classical computers.
The company’s momentum is not limited to technology. Quantinuum is rapidly expanding its global footprint and forging strategic partnerships that enhance its reach and impact. It will collaborate with NVIDIA at the newly established Accelerated Quantum Research Center in Boston, where the two companies aim to explore hybrid computing models that integrate quantum and classical systems. This partnership builds on a shared vision of using quantum computing to accelerate progress in machine learning, data science, and simulation.
Quantinuum has also announced collaborations with leading institutions and corporations, including RIKEN in Japan, SoftBank Corp., Infineon Technologies, and the STFC Hartree Centre in the UK. These partnerships are designed to explore new quantum applications, develop scalable solutions, and strengthen the global quantum ecosystem. Additionally, the company is expanding its presence in key regions, including New Mexico, Qatar, and Singapore.
In Qatar, Quantinuum is playing a central role in a $1 billion national initiative to build advanced quantum infrastructure over the next decade. The joint venture will deliver cutting-edge systems and services to support research, education, and commercial deployment. In Singapore, the company is enabling direct access to its quantum computers and working with local partners to explore use cases in computational biology and other fields.
Support/counsel: J.P. Morgan Securities served as the exclusive placement agent to Quantinuum in connection with the financing. Freshfields LLP acted as external legal counsel.
KEY QUOTES:
“Quantinuum continues to meet and exceed our stated objectives — strategically, technically and commercially. We have complete confidence in Quantinuum’s ability to continue to lead the quantum revolution and create long-term value for its investors and customers.”
Vimal Kapur, Chairman and CEO of Honeywell
“We have seen firsthand the transformative potential of Quantinuum’s technology. We are looking forward to continuing our work together to help accelerate innovation and move closer toward solving real-world problems through quantum applications.”
Scot Baldry, Chief Technology Officer of JPMorganChase
“We are proud to partner with investors who share deep conviction in our vision for the future of quantum and AI. With the continued support of our customers and supply chain partners, this new funding will further extend our leadership, accelerate our roadmap and strengthen the entire quantum ecosystem.”
Dr. Rajeeb Hazra, President & CEO of Quantinuum
