Startups > Quantinuum

Quantinuum

Quantinuum builds accurate quantum computers and software for enterprise problem-solving.

Venture Round $1.225B total Founded 2021 Broomfield, Colorado 407 employees

Quantinuum develops trapped-ion quantum computing hardware and software middleware for enterprise applications in cybersecurity, drug discovery, materials science, and financial modeling. The company operates Helios, the world's most accurate commercial quantum computer with 98 fully connected qubits and 99.9975% single-qubit gate fidelity. Its software products, including InQuanto for quantum chemistry simulations and TKET optimization toolkit, enable organizations to run production quantum applications on Quantinuum's hardware and other quantum platforms.

Problem solved

Enterprise organizations lack access to sufficiently accurate and scalable quantum computing systems and software to solve real-world problems in drug discovery, materials design, and financial modeling.

Target customer

Enterprise companies in pharmaceuticals, materials science, financial services, and cybersecurity seeking quantum computing capabilities for computational chemistry, drug discovery, materials simulation, and cryptographic defense.

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Founders

Ilyas Khan

Chief Product Officer & Vice Chairman

Founded Cambridge Quantum Computing in 2014 and served as founding CEO of Quantinuum; inaugural Chairman of The Stephen Hawking Foundation and founding Chairman of the Topos Institute.

Dr. Rajeeb Hazra

President & CEO

Joined as CEO in February 2023 with 30+ years in supercomputing and quantum; previously General Manager of Compute and Networking at Micron and spent 25 years at Intel leading enterprise and supercomputing divisions; Ph.D. and M.S. in Computer Science from William & Mary.

Funding history

Formation Investment $300M November 2021 Led by Honeywell · N/A

Series D $300M January 16, 2024 Led by JPMorgan Chase · Mitsui & Co., Amgen, Honeywell

Series E $600M August/September 2025 Led by Quanta Computer, NVentures, QED Investors · JPMorgan Chase, Mitsui, Amgen, Cambridge Quantum Holdings, Serendipity Capital, Honeywell, MESH, Korea Investment Partners

Total raised: $1.225B

Industries

Cyber Security Quantum Computing Software Engineering

Pricing

Not publicly available. Helios available via Hardware-as-a-Service (HaaS) and cloud access models; contact for custom enterprise pricing.

Notable customers

Airbus, BMW Group, Honeywell, HSBC, JPMorgan Chase, Mitsui, Thales, Amgen, Deutsche Bahn, Nippon Steel Corporation, TotalEnergies, SoftBank

Integrations

TKET (proprietary optimization toolkit), AWS, Salesforce, partnerships with enterprise software providers for industry-specific applications

Tech stack

jQuery (JavaScript libraries) core-js (JavaScript libraries) Open Graph Google Analytics (Analytics) reCAPTCHA (Security) jsDelivr (CDN) Salesforce Marketing Cloud Account Engagement (Marketing automation) Google Tag Manager (Tag managers) Webflow (Page builders) Amazon Web Services (PaaS) Amazon SES (Email)

Website

quantinuum.com/

Competitors

IonQ

Also offers trapped-ion quantum computers but with lower qubit counts and gate fidelities; less developed software ecosystem.

PsiQuantum

Pursues fault-tolerant photonic quantum computing approach rather than trapped-ion architecture; earlier stage commercialization.

Oxford Ionics

Develops alternative trapped-ion approach with different scaling architecture; smaller funding and customer base.

D-Wave Quantum

Focuses on quantum annealing for optimization problems rather than gate-based quantum computing for chemistry and AI.

Why this matters: Quantinuum has achieved the highest quantum gate fidelities in commercial quantum computing and commands the largest funding base in the quantum computing sector ($1.225B), making it the clear market leader in trapped-ion quantum technology. The company's focus on solving real enterprise problems in drug discovery and materials science—validated by marquee customers like Amgen, TotalEnergies, and JPMorgan Chase—positions it as the most commercially advanced quantum computing platform, not merely a research initiative.

Best for: Enterprise organizations in pharmaceuticals, materials science, financial services, and cybersecurity that need to solve computationally intractable problems and are willing to adopt quantum computing as a strategic capability.

Use cases

Drug Discovery and Molecular Simulation

Pharmaceutical companies use InQuanto to simulate protein-drug interactions and molecular structures at quantum-mechanical levels of accuracy. This accelerates the discovery of new drug candidates by reducing the need for expensive wet-lab experiments.

Materials Science and Design

Materials companies like Nippon Steel use Quantinuum's quantum algorithms to simulate the behavior of crystal structures and metal compositions. This enables rapid exploration of new material properties for steel development and industrial applications.

Carbon Capture Optimization

Energy companies like TotalEnergies use InQuanto to model metal-organic frameworks for carbon capture applications. Quantum simulation provides insights into molecular interactions that classical computing cannot efficiently calculate.

Financial Analytics and Risk Modeling

Financial institutions use Quantinuum's quantum computing platform to run Monte Carlo simulations and optimize portfolio risk assessment with greater accuracy and speed than classical methods.

Cryptographic Key Generation

Organizations use Quantinuum's quantum-computing-hardened encryption keys to enhance cybersecurity defenses and protect sensitive data against future quantum threats.

Alternatives

IonQ More accessible entry point with cloud-based access but lower qubit accuracy; better for exploratory quantum computing without advanced chemistry expertise.

IBM Quantum Superconducting qubit approach with broader ecosystem and community tools but lower gate fidelities; better for learning and research than production chemistry simulation.

AWS Braket Cloud platform providing access to multiple quantum hardware providers including D-Wave and IonQ; offers flexibility but does not match Quantinuum's hardware accuracy or specialized chemistry software.

FAQ

What does Quantinuum do? +

Quantinuum builds trapped-ion quantum computers and software middleware for enterprise applications in drug discovery, materials science, financial modeling, and cybersecurity. Its Helios system is the world's most accurate commercial quantum computer, and its InQuanto software enables quantum computational chemistry simulations.

How much does Quantinuum cost? +

Pricing is not publicly available. Quantinuum offers Helios through Hardware-as-a-Service (HaaS) and cloud access models. Enterprise customers should contact Quantinuum directly for custom pricing.

What are alternatives to Quantinuum? +

Key alternatives include IonQ (cloud-based trapped-ion quantum), IBM Quantum (superconducting qubits with broader ecosystem), AWS Braket (multi-provider cloud platform), and D-Wave (quantum annealing for optimization).

Who uses Quantinuum? +

Enterprise customers include Airbus, BMW, Honeywell, HSBC, JPMorgan Chase, Amgen, Nippon Steel, TotalEnergies, and Deutsche Bahn. Target customers are large organizations in pharmaceuticals, materials science, financial services, and aerospace needing quantum-accelerated computations.

How does Quantinuum compare to IonQ? +

Quantinuum offers significantly higher qubit gate fidelities (99.9975% single-qubit vs. IonQ's lower fidelities) and a more comprehensive software stack with InQuanto for chemistry applications. IonQ provides easier cloud access with lower barrier to entry but less accuracy for production chemistry simulations.