Bull opens Angers factory to boost supercomputer output

Bull has opened a new production building at its Angers site in France as part of an EUR €80 million redevelopment of the company's historic manufacturing base.

The facility is designed to expand output of supercomputers, AI infrastructure and enterprise servers, while preparing the site for future work in quantum technologies. Bull said the upgraded factory doubles production capacity, is expected to raise productivity by 30% and cut building maintenance costs by 30%.

In western France, the Angers site now covers 20,000 square metres, with 10,700 square metres dedicated to production. Bull described it as the only industrial site in Europe able to design, integrate, assemble, test and validate supercomputers, AI infrastructure and enterprise servers in one location.

The opening marks a step in a wider reconstruction and modernisation programme due to run until 2028. The site has been designed around what Bull describes as Industry 5.0 principles, including reconfigurable production areas, greater automation, virtualisation and the use of collaborative robots.

European role

Angers has become central to Bull's manufacturing plans as Europe seeks to build more of its own computing infrastructure. Bull said the site will help develop future European AI systems and support the reshoring of infrastructure manufacturing to the region.

Bull said the factory will deliver Alice Recoque, a European exascale supercomputer to be hosted in France, in 2027. It is also due to deliver LUMI-AI for the LUMI AI Factory in Finland.

The site has already contributed to several major installations, including JUPITER, described as Europe's first exascale supercomputer, and systems ranked among the three most energy-efficient supercomputers in the Green500 list.

Open factory

Alongside the opening, Bull launched an Open Factory programme that will give outside companies access to the Angers site's industrial resources. It is aimed at businesses working on AI, advanced computing and quantum technologies that need to move from research or laboratory development into larger-scale production.

Bull said the initiative has two aims: to bring more infrastructure manufacturing back to Europe and to help technology developers move from prototype work to industrial deployment. It added that the programme will support the development of AI gigafactories, neocloud providers and hybrid computing systems that combine high-performance computing with quantum technologies.

The first industrial outcome linked to this approach is Bull's recently announced partnership with Foxconn. The project is intended to design and manufacture AI servers in Europe based on Nvidia's Vera Rubin NVL72 platform for AI factories and cloud providers.

Energy measures

The new building also includes energy features aimed at reducing its operating impact. More than 3,500 photovoltaic panels have been installed across 7,000 square metres, with a combined peak capacity of 1,500 kWp.

Bull said the site will also use renewable electricity supplies and a heat recovery system that captures waste heat from equipment. The recovered energy is expected eventually to be enough to supply the equivalent of 600 households, with a target of injecting 5 GWh a year into the district heating network.

Public bodies have also backed the redevelopment. The project received EUR €1.2 million through the Ecological Transition Acceleration Fund for Local Authorities, EUR €213,000 from ADEME through its Heat Fund, and EUR €1.5 million from the Pays de la Loire Regional Council.

The overall redevelopment is being carried out by Alter Cités, a local public development company serving the Anjou region and the Greater Angers metropolitan area.

Strategic context

The opening comes as France and other European governments put greater emphasis on sovereign computing, AI infrastructure and local industrial capacity. Bull said the Angers investment reflects an effort to keep production of strategic digital systems within Europe as demand for AI computing infrastructure rises sharply.

Roland Lescure, French Minister for the Economy, Finance and Industrial, Energy and Digital Sovereignty, linked the site's expansion to wider state policy.

"In a world that is becoming increasingly fragmented, including in the digital sphere, it is imperative that France and Europe retain control over their own computing capabilities. This is the strategic choice the French State made on 31 March by becoming Bull's sole shareholder. Six months later, the relevance of that decision is already evident in both the announcement of the LUMI-AI contract, the largest in the company's history, and the doubling of the capacity of its historic manufacturing site, which we celebrate today. Since 1963, Angers has weathered every chapter and every storm of European computing alongside Bull. Today, it is here that some of Europe's most powerful supercomputers are built. I would like to pay tribute to the women and men of this site for their expertise and commitment. What they are building is more than technology or industrial infrastructure: it is a part of our national and European independence," said Roland Lescure, French Minister for the Economy, Finance and Industrial, Energy and Digital Sovereignty.

Emmanuel Le Roux, Chief Executive Officer of Bull, said the site reflects the company's shift in focus.

"Since opening in 1963, the Angers factory has been a key part of Bull's history and major milestones. Today, it embodies the company's transformation: from a historic computing player to a leading industrial partner for high-performance computing, artificial intelligence and sovereign digital infrastructures. This factory reflects our conviction that Europe must have the industrial capabilities required to produce tomorrow's strategic digital infrastructures on its own territory. This new industrial facility will support the next generation of supercomputers, AI infrastructures and advanced computing technologies, helping nations and organisations strengthen their strategic autonomy," said Le Roux.