Quantinuum Inc. is one of the world's largest integrated quantum computing companies, formed in 2021 through the merger of Honeywell Quantum Solutions and Cambridge Quantum. The company operates as a full-stack provider, developing both advanced quantum hardware and sophisticated software tools designed to solve complex problems that are beyond the reach of classical computers. Quantinuum's hardware is based on trapped-ion technology, specifically its H-Series quantum computers, which are recognized for achieving high fidelity and industry-leading quantum volume. On the software side, the company maintains TKET, a widely used open-source quantum software development kit that allows developers to optimize quantum circuits for various hardware backends. Their product portfolio also includes Quantum Origin, a platform for generating quantum-enhanced cryptographic keys, and specialized software for fields such as computational chemistry, materials science, and finance. Headquartered in the United States and the United Kingdom, Quantinuum serves a global client base that includes Fortune 500 companies, research institutions, and government agencies. Led by CEO Raj Hazra, the company is focused on the path toward fault-tolerant quantum computing. By integrating hardware and software capabilities, Quantinuum aims to accelerate the commercialization of quantum technologies and provide tangible value to industries ranging from pharmaceuticals to cybersecurity.