Bull & Equal1 sign MoU on hybrid quantum computing

Bull and Equal1 have signed a Memorandum of Understanding on hybrid quantum and high-performance computing in Europe. The agreement focuses on linking Equal1's quantum systems with Bull's quantum software environment.

The work will cover technical integration, joint research and participation in European quantum projects. Under the arrangement, the companies will create a framework for technical exchange and joint project evaluation, with initial efforts focused on physics-based simulations and large-scale data centre infrastructure.

Bull is a long-established supplier of supercomputing, artificial intelligence and quantum systems, while Dublin-based Equal1 develops silicon-based quantum computers. The partnership combines Bull's supercomputing infrastructure and quantum emulation tools with Equal1's silicon-spin quantum hardware.

A central part of the plan is to connect Equal1's rack-mounted quantum servers to Bull's Qaptiva software stack. This is intended to let users in existing AI and HPC data centre environments develop, test and optimise quantum algorithms and related use cases.

The integration is designed to support hybrid computing workflows that combine classical supercomputers with quantum processors. It reflects a wider industry push to move quantum computing from experimental work towards practical industrial and scientific applications.

Three Areas

The first area of work is technical integration between the two companies' systems. The second is joint research on silicon-spin qubit characterisation and physics, aimed at developing scalable quantum-on-chip technology. The third is collaboration on European Union-led projects aimed at strengthening Europe's position in quantum technology.

The agreement also highlights the importance of data centre compatibility at the current stage of the quantum market. Equal1 says its systems are designed to fit standard data centre environments rather than highly specialised laboratory installations, while Bull's software platform is already used to manage and emulate quantum workloads alongside classical computing resources.

That approach could help research organisations and industrial users assess where quantum methods fit within existing computing estates. It may also allow developers to test algorithms in mixed environments that include both emulation and quantum execution, an increasingly important area while hardware remains at an early commercial stage.

Bull sees hybrid architectures as a practical route for organisations exploring quantum computing. "The convergence of high-performance computing and quantum technologies is redefining how we address the world's most complex challenges. Ten years after launching the first quantum emulator on the market, innovation has always been part of Bull's DNA, and we remain committed to designing hybrid architectures that help translate emerging technologies into operational capability. By integrating Equal1's silicon-spin quantum servers into our Qaptiva ecosystem, we are enabling a seamless bridge between HPC, quantum emulation and quantum execution. This alliance ensures our customers can leverage quantum-centric supercomputing to achieve real-world outcomes with unprecedented efficiency and performance," said Bruno Lecointe, SVP, Global Head of HPC, AI and Quantum, Bull.

Equal1 described the partnership as a step towards making quantum systems more usable within established computing operations. "By building quantum processors on standard silicon, we are turning quantum from bespoke laboratory hardware into deployable infrastructure. This collaboration with Bull is a vital step in bridging the gap between breakthrough hardware innovation and industrial workloads. Together, we are positioning our joint solutions as the standard for high-performance computing, enabling seamless integration into existing data centres and driving a more sustainable digital future," said Jason Lynch, Chief Executive Officer, Equal1.

European Push

The partnership comes as Europe seeks to build domestic strength in advanced computing and reduce reliance on non-European technology providers in strategic fields. Quantum computing has attracted public funding and policy attention across the region, with governments and institutions backing projects that combine hardware, software and research expertise.

Bull reports revenue of about EUR €720 million and employs 3,000 staff across 32 countries. Equal1, based in Dublin, focuses on silicon-powered quantum systems and says it has developed a rack-mounted hybrid quantum-classical computer built on silicon-spin quantum processors.

For both companies, the MoU appears aimed at creating a path from research collaboration to practical deployment. The initial focus on simulations and data centre infrastructure suggests the first work will centre on environments where classical computing is already deeply embedded and where hybrid quantum approaches can be tested against defined workloads.

The deal adds to a growing pattern of partnerships between quantum hardware firms and established computing providers as the industry tries to build usable systems around still-maturing processors. In Europe, that trend is increasingly tied to broader industrial policy goals around sovereignty, local supply chains and control over strategic digital infrastructure.