Horizon Quantum Holdings Ltd. (NASDAQ: HQ) announced it will locate its second quantum computer in Dublin, Ireland, according to a company press release.

The system will be a 256-qubit trapped-ion quantum computer manufactured by IonQ. Horizon Quantum described the system as IonQ's sixth-generation, chip-based technology that is expected to be among the most sophisticated quantum computers globally.

The company plans to install the system at its European headquarters in Dublin. Horizon Quantum expects to expand its Irish-based science and engineering teams to oversee the establishment and management of the quantum system.

"Expanding our hardware testbed to Ireland with the addition of a frontier system is a significant step forward for both our company in our mission to unlock broad quantum advantage and for the country in strengthening its quantum ecosystem," said Horizon Quantum CEO and Founder Dr. Joe Fitzsimons.

In December 2025, Horizon Quantum assembled its first quantum system, a multi-vendor superconducting system, at its Singapore headquarters. The Dublin installation will mark the company's second quantum computer testbed location.

Minister Peter Burke of Ireland's Department of Enterprise, Tourism and Employment welcomed the investment, stating it reinforces Ireland's position in advanced technologies and aligns with the country's Silicon Island semiconductor strategy.

Horizon Quantum plans to integrate the IonQ system with its software infrastructure, including its integrated development environment called Triple Alpha. The company develops hardware-agnostic quantum software development tools.

The announcement comes as part of Horizon Quantum's expansion of its quantum computing testbed facilities to include technologically distinct systems across different geographic locations.