Quantinuum, with NVIDIA Backing, Secures $600M in Honeywell-Led Financing
Integrated quantum computing company Quantinuum has secured approximately $600 million in equity capital, following the close of round led by Honeywell. The round closed at a pre-money equity valuation of $10 billion.
NVIDIA venture capital arm NVentures, as well as Quantu Computer and QED Investors participated in the round. Repeat investors JPMorganChase, Mitsui, Amgen, Cambridge Quantum Holdings, Serendipity Capital, and Honeywell joined in the financing.
Quantinuum secured $300 million early last year, in a round led by Honeywell, and said that the recent funding will support its advancement of quantum computing at scale, which includes continued progress toward the upcoming launch of Helios, the company’s next-generation quantum computing system, expected to launch this year. The funds will also support the company’s efforts to achieve fault-tolerant computing.
Quantinuum's technologies are used today by companies including Airbus, BMW Group, Honeywell, HSBC, JPMorgan Chase, Mitsui, and Thales. The company was selected earlier this year as founding collaborator for NVIDIA’s Accelerated Quantum Research Center. Quantinuum recently announced partnerships and collaborations with RIKEN, SoftBank Corp., Infineon and STFC Hartree Center, as well as expansions into New Mexico, Qatar, and Singapore.
The company’s collaborations collectively provide substantial investment, accelerating research and development, product development, scaling manufacturing capabilities, securing supply chains and fostering the overall growth of the quantum technologies industry. For example, the company’s joint venture in Qatar was selected to deliver advanced quantum computing infrastructure and solutions to the region as part of Qatar’s $1 billion investment over the next decade. In Singapore, Quantinuum is enabling access to the company’s advanced quantum computer, and to explore and collaborate on quantum use cases, focusing on computational biology.
Published: September 2025