TL;DR
Quantinuum, backed by Honeywell, has filed for an initial public offering in the United States with the goal of reaching a valuation of more than $20 billion. The quantum computing company reported annual revenue of $30.9 million and losses of $192.6 million, based on a fault-tolerant machine planned for 2029.
How many filed an initial public offering in the US on Thursday. that could value the company at more than $20 billion. In the year ended December 31, 2025, Quantinuum reported revenue of $30.9 million and a net loss of $192.6 million. The company is asking public market investors to pay a premium of more than 600 times revenue for a quantum computer that does not yet exist in its final form. The computer he is building, a universal fault-tolerant machine called Apollo, is scheduled for 2029.
The presentation is important not because of Quantinuum’s current finances, which are modest by any standard, but because of what the appetite of the IPO market will reveal about how investors value a technology that has been five to ten years removed from commercial utility for the past twenty years. Quantinuum is backed by Honeywell, which owns 54 percent of the company. JPMorgan and Morgan Stanley are leading the bid. The ticker will be QNT on the Nasdaq Global Select Market.
The company
Quantinuum was formed in 2021 from the merger of Honeywell Quantum Solutions and Cambridge Quantum Computing. It builds quantum computers based on trapped ion architecture, a technology in which individual atoms are suspended in electromagnetic fields and manipulated with lasers to perform calculations. The company claims to have the industry’s highest average two-qubit gate fidelity as of December 2025, a measure of how precisely the machine performs the basic operations of quantum computing.
Its clients include BMW, Airbus, JPMorgan Chase, HSBC, Mitsui and Thales. BMW expanded its multi-year partnership with Quantinuum in May 2026 to apply quantum computing to fuel cell catalyst chemistry research. Airbus is exploring quantum simulation for hydrogen-powered aircraft. JPMorgan has been working with Quantinuum since 2020 and is one of the most active corporate users of its software development kit.
These are research partnerships, not production deployments. No company is running quantum computing in production at a scale that affects their bottom line. The partnerships exist because companies believe that quantum computing will eventually transform their industries and they want to be prepared when it does. The word “eventually” carries all the risk.
the numbers
Quantinuum’s 2025 revenue of $30.9 million represented 34 percent growth from $23 million a year earlier. The net loss of $192.6 million represented a 34 percent growth from $144.1 million a year earlier. Revenues and losses grew at exactly the same rate.
The first quarter of 2026 was worse. Revenue fell to $5.2 million from $19.1 million in the same quarter a year earlier. Net loss increased from $30.5 million to $136.6 million. The quarterly figures suggest that revenue is irregular and dependent on the timing of contracts, a common pattern in pre-commercial deep tech companies.
The target valuation of over $20 billion would represent double the pre-money valuation of $10 billion at which Quantinuum raised $600 million in September 2025. Before that, it raised $300 million in January 2024 at a valuation of $5 billion. The valuation has quadrupled in two years while the company’s revenue has gone from $23 million to $31 million.
The roadmap
Quantinuum’s hardware roadmap has four generations. The current system, Helios, is commercially available. Sol is planned for 2027. Apollo, the system the company describes as universal and fully fault-tolerant, is planned for 2029. A fault-tolerant quantum computer is one that can perform complex calculations with enough error correction to produce reliable results, the threshold at which quantum computing moves from a research tool to a commercial platform.
Riverlane raised $75 million to build chips that solve quantum error correctionwith the goal of achieving one million error-free operations by 2026. Error correction is the field’s central engineering challenge. Without it, quantum computers produce results that are too noisy to be useful in the complex simulations that justify the technology’s theoretical advantages. Quantinuum’s Apollo is designed to solve this problem at the system level. Whether this will be the case and whether the year 2029 will be achievable are the questions on which the valuation of the IPO is based.
Europe spends billions on quantum computersand the governments of Germany, the Netherlands, France and the United Kingdom have launched or expanded national programs. France has committed 500 million euros to five startups building fault-tolerant quantum machines. The public investment reflects a consensus among policymakers that quantum computing is a strategic capability, even as the private market struggles to determine how much the capability is worth before it goes live.
the market
Quantinuum would join a small cohort of publicly traded quantum computing companies. IonQ, which uses the same trapped ion technology, went public via SPAC in 2021 and is the only quantum-only stock with positive returns in 2026, up 16 percent year-to-date after posting more than $100 million in annual revenue. Rigetti Computing, which uses superconducting qubits, is down 10 percent. D-Wave Quantum is down 9 percent.
IQM has built 30 full-stack quantum computers from its facilities in Finland and announced a $1.8 billion SPAC merger to list on the New York Stock Exchange. The quantum computing sector is pre-earnings and largely driven by sentiment, with stock prices moving based on milestone announcements, government contracts, and capital raises rather than fundamentals. Quantinuum’s IPO would be the largest quantum computing public listing to date and would set a valuation benchmark for the entire sector.
The risk is that the benchmark reflects market enthusiasm for a technology whose commercial timeline remains uncertain. Industry experts surveyed in 2025 said quantum utility is at most ten years awaya timeline that hasn’t changed significantly in a decade. Google’s CEO said between five and ten years. The CEO of NVIDIA said at least fifteen.
the bet
Honeywell’s decision to take Quantinuum public is part of a broader restructuring that includes the spinoff of its aerospace division and the separation of its advanced materials business. The IPO gives Quantinuum access to public capital markets and gives Honeywell a path to gradually reduce its 54 percent stake. The $600 million raise in September 2025 was led by investors including JPMorgan, which is now also leading the underwriting of the IPO, a dual role that reflects the degree to which the interests of the investment banking community are aligned with the success of the offering.
Quantinuum’s pitch is a bet that public market investors will value a quantum computing company the same way private markets have: with the promise of a technology that doesn’t yet work at scale, valued based on a future in which it will. The $30.9 million in revenue is not the product. The product is Apollo, a machine that is three years away and has several fundamental engineering advances. The IPO is a bet that the market will pay $20 billion for the right to wait.
