Honeywell has announced an approximately $600 million equity capital raise for Quantinuum at a pre-money equity valuation of $10 billion. The funding round was joined by new investors Quanta Computer, NVentures (NVIDIA’s venture capital arm), QED Investors, MESH, and Korea Investment Partners. Existing shareholders, including JPMorganChase, Mitsui, Amgen, Cambridge Quantum Holdings, Serendipity Capital and Honeywell, also reinvested in this round. This is the largest single venture capital round in the quantum industry so far.
This capital raise is intended to support Quantinuum’s advancement of quantum computing at scale, including continued progress toward the upcoming launch of its next-generation quantum computing system, Helios. The funding will also support Quantinuum’s path to performing universal fault-tolerant computing. The company’s collaborations provide investment and are designed to accelerate research and development, scale manufacturing capabilities, and foster the growth of the quantum technologies industry.
Quantinuum is working with NVIDIA as a founding collaborator on the NVIDIA Accelerated Quantum Research Center. The company has also entered into strategic partnerships with RIKEN, SoftBank Corp., Infineon, and the STFC Hartree Center. Its global expansion includes a presence in New Mexico, Qatar, and Singapore. A joint venture in Qatar was selected to deliver advanced quantum computing infrastructure as part of Qatar’s $1 billion investment over a decade.
Honeywell Chairman and CEO Vimal Kapur expressed confidence in Quantinuum’s ability to meet its objectives. J.P. Morgan Securities LLC served as exclusive placement agent to Quantinuum in connection with the financing.
Read the full announcement here.
September 4, 2025
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