Quantinuum

Quantinuum is a full-stack quantum computing company formed in November 2021, via a merger, to leverage the hardware capabilities of Honeywell Quantum Solutions (HQS)—the quantum unit of Honeywell International—and the software expertise of Cambridge Quantum Computing (CQC).

It offers quantum solutions in areas including cyber security and encryption, drug discovery and delivery, finance, and material science. All of Quantinuum’s products will be compatible with many quantum technologies including trapped ions (H1 computers) and superconducting qubits (IBM). Quantinuum also offers CQC’s open-source hardware-agnostic software development kit (SDK) TKET. 

Quantinuum’s H1 generation of trapped-ion quantum computers—H1-1 and H1-2—that are powered by Honeywell, are commercially available on the cloud. The 12-qubit H1-2 system is reportedly the first quantum computer to reach a quantum volume (QV) benchmark of 2,048. In April 2024, the company announced that its 20-qubit quantum processor H1-1 achieved the “three 9's,” a 99.9% two-qubit gate fidelity in a commercial quantum computer, making it the first in the industry to do so. It also surpassed a QV of 1 million, marking the highest at the time. Following this, in June 2024, introduced H2-1, the industry's first quantum computer featuring 56 trapped-ion qubits, which efficiently performed Random Circuit Sampling (RCS) algorithms, exceeding the industry standard set by Google in 2019.

The company, in December 2021, introduced “Quantum Origin,” a quantum-enhanced cryptographic key generation platform. It is reportedly the world’s first commercial product to be built by a quantum computer. It also commercially launched a computational chemistry software platform InQuanto in May 2022. 

In July 2024, the company was reportedly preparing for an IPO with a target valuation of USD 10 billion according to a Bloomberg report. This followed a USD 300 million equity funding round in January 2024 with a pre-money valuation of USD 5 billion.

Key customers and partnerships

Quantinuum’s partnerships included Microsoft (April 2024) to manufacture four logical qubits with low error rates; EAGLYS and Mitsui (December 2023) to develop a platform that shields data and AI models from quantum-based cyber threats; Thales (January 2024) to launch a PQC Starter Kit that helps business enterprises prepare for Post-Quantum Cryptography (PQC); RIKEN (January 2024) to develop a hybrid quantum high-performance computing (quantum HPC) platform; HSBC (May 2023) to explore quantum computing in real-world financial applications; and Mitsui (October 2022) to build the quantum computing market in Japan and the Asia-Pacific regions.

Quantinuum also joined the Strangeworks ecosystem in January 2022 to provide Quantum Origin access to Strangeworks and its customers.