Honeywell planning to file IPO for quantum computing unit Quantinuum - Data Center Dynamics
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Honeywell planning to file IPO for quantum computing unit Quantinuum No details about the timeline have been disclosed January 15, 2026 By Charlotte Trueman Have your say Facebook Twitter LinkedIn Reddit Email Share US multinational Honeywell is planning to file draft IPO papers for its quantum computing unit, Quantinuum, with the US securities regulator.Timings for the filing were not disclosed, and the company said the number of shares to be offered and the price range for the proposed offering have not yet been determined. – Quantinuum Quantinuum was founded in 2021 when Honeywell spun out its Quantum Solutions division and merged it with UK quantum computing startup Cambridge Quantum Computing. Honeywell owns a 54 percent stake in the company, and IBM is also an investor.Reports first emerged in July 2024 that the company had been in discussions with a number of investment banks ahead of a potential float on the US stock exchange, with sources at the time claiming Honeywell was seeking a valuation for Quantinuum of around $10 billion, a figure it achieved after closing a $600 million equity fundraise in September 2025.That round saw participation from Nvidia’s venture arm NVentures and Quanta Computer, in addition to previous investors, including JPMC, Mitsui, Amgen, and Honeywell.In November 2025, Quantinuum launched Helios, a general-purpose quantum computer that allows developers to program quantum and heterogeneous classical computers in the same way, therefore enabling hybrid quantum capabilities to be combined in a single program.That same month, the US government’s Defense Advanced Research Projects Agency (DARPA) announced that Quantinuum had advanced to Stage B of its Quantum Benchmarking Initiative (QBI). Subscribe to The Investment & Markets Channel for regular news round-ups, market reports, and more. Create an Account to Subscribe Now More in Investment / M&A / Financing 04 Sep 2025 OData secures $1.02bn in green financing 08 Jan 2026 Stonepeak to snap up Bitė’s tower business in Baltics Episode Structuring growth - Financing the data center boom More in North America The Xcelerated Compute Show | London 2026 - Sample Delegate List 08 Jan 2026 US power systems firm Concentric acquires power supplier Critical Components 30 Oct 2025 Crypto firm Ionic Digital looks to go public Facebook Twitter LinkedIn Reddit Email Share Tags Honeywell IPO Quantinuum