Quantum computer developer Quantinuum files for an estimated $1.5 billion IPO
IPO Overview
Quantinuum, a quantum computer developer being carved out of Honeywell, filed on Friday with the SEC to raise up to what we estimate could be $1.5 billion in an initial public offering.
Quantinuum develops quantum computing systems and software with the goal of commercializing quantum technology for enterprise and government applications. The company operates on the premise that future computing will be hybrid in nature, combining classical processors, GPU-based accelerated compute, and quantum processing units to tackle problems that conventional systems cannot efficiently solve. Its work spans hardware development and software, targeting use cases in fields such as artificial intelligence, cybersecurity, drug discovery, and materials science.
The Broomfield, CO-based company was founded in 2021 and booked $36 million in revenue for the 12 months ended March 31, 2026. It plans to list on the Nasdaq under the symbol QNT. Quantinuum filed confidentially on February 17, 2026. J.P. Morgan, Morgan Stanley, Jefferies, Evercore ISI, BofA Securities, UBS Investment Bank, Cantor Fitzgerald, Mizuho Securities, Needham & Co., Societe Generale, and TD Cowen are the joint bookrunners on the deal.
About the Company
Quantum computing is quickly evolving from research to early commercial adoption to address the insatiable need for computing power in the digital age. Even as classical computing continues to advance in energy-efficient performance, the huge computational demands of new applications such as artificial intelligence （“AI”） are making it challenging for classical computing to keep pace. Quantum computing is a fundamentally different approach that allows us to solve entirely new classes of problems in a resource-efficient manner. This paradigm change is being propelled by governments and enterprises, as they recognize quantum computing as a potential key enabler of long-term growth. Quantinuum was built with the mission to lead this transition and play a pivotal role in defining the future of the computing industry. We believe the future of computing will be inherently hybrid, combining classical compute （i.e., CPUs）， accelerated compute （i.e., GPUs） and quantum compute （i.e., QPUs）。 In this architecture, quantum computing will become a foundational layer for solving classes of problems that are fundamentally difficult for classical and accelerated systems alone. We view quantum computing not as a standalone replacement for classical systems, but as a new foundational layer within a hybrid computing stack.