Bull doubles supercomputer assembly at Angers plant following €80 million expansion

Factory expansion in Angers

French supercomputer maker Bull opened an expanded production facility at its factory in Angers on 2 October 2026 after completing an €80 million redevelopment. The facility, situated on Boulevard Patton at an industrial location established in 1962, represents Europe's only large-scale assembly venue for supercomputers. The new production hall, which entered initial operation in mid-July 2026, doubles monthly assembly from six racks to 12 racks. Management plans indicate that assembly capacity could reach 24 racks monthly next year if client orders expand. The ongoing overhaul will expand the plant surface from 4.6 hectares to 7.4 hectares by 2027, with final site reconstruction scheduled for completion in 2028.

Supply chain shifts and memory bottlenecks

Bull now procures approximately 70% of its system parts from European manufacturers, encompassing circuit boards, interconnects, cooling networks, and processors, compared to between 20% and 30% five years ago. However, Chief Executive Emmanuel Le Roux identified computer memory as the final component sector lacking a European manufacturer. Depending on buyer requirements, Angers integrates chips from Intel, AMD, Nvidia, or European semiconductor vendors. Operations director Vincent Sarracanie stated that the technical standards of the upgraded factory secured official manufacturing accreditation from Nvidia.

We would never have obtained the Nvidia label without this new site, without our means, without our technical expertise. It is the story of the chicken and the egg. This factory brings us new clients.

Exascale contracts and international orders

The expanded manufacturing space permits Bull to assemble two supercomputer projects simultaneously for the first time. The first build is Alice Recoque, a 94-rack exascale machine capable of one quintillion calculations per second, ordered by France's Alternative Energies and Atomic Energy Commission (CEA) for €554 million funded by France and the European Union. The second system is LUMI-AI, a €387.8 million installation for Kajaani, Finland, marking the largest single contract in Bull's history. Both machines are scheduled for completion in 2027, with Alice Recoque arriving in stages starting late in 2026. The company also booked a €120 million server agreement with Foxconn and a €31 million system deal with Spain's meteorological agency.

State acquisition and European tender victories

The French government completed its purchase of Bull from Atos on 31 March 2026 in a transaction valuing the business at up to €404 million, placing the firm under 100% state control following Atos's financial difficulties in 2024. Chief Executive Le Roux described the transition as a new chapter, noting that Bull has recorded more orders this year than in any prior period. Bull has won 15 out of 18 tenders conducted by EuroHPC, the European Union body co-funding continental supercomputing, outpacing rivals such as Hewlett Packard Enterprise. Bull previously built JUPITER, Europe's initial exascale system at Germany's Jülich research centre, where OVHcloud and Domyn train AI models. French Economy Minister Roland Lescure stated the political priority behind the acquisition.

It is imperative that France and Europe retain control over their own computing capabilities.