Bull opened its expanded supercomputer factory in Angers on 2 October 2026 after an €80 million investment, Le Monde reported.
Key points
- Angers can produce 12 supercomputer racks a month, up from six.
- The expanded plant can build the Alice Recoque and LUMI-AI systems in parallel.
- France acquired Bull from Atos on 31 March at a valuation of up to €404 million.
- The EU is allocating €7 billion to a supercomputer network between 2021 and 2027.
Angers reaches 12 racks a month
The Angers plant is producing 12 racks a month, twice its previous capacity of six, Techzine reported. Output could rise to 24 racks a month in 2027. The higher rate gives Bull room to assemble two large customer systems concurrently, which it could not do before the expansion.
The building replaces a production arrangement spread over two floors in a structure dating from 1963. Le Monde reported that Bull expects automation of some tasks to improve factory productivity by 30%.
Capacity at Angers is measured in racks delivered each month, rather than in the computing performance of a finished machine. The production increase is therefore relevant to Bull’s delivery schedule: the company has two substantial systems in assembly, with different customers, budgets and destinations.
Alice Recoque and LUMI-AI overlap
Alice Recoque, the French order, comprises 94 racks and has €554 million in combined French government and EU funding. Bull is building it with AMD. The other project is LUMI-AI for Finland, a €388 million contract that Techzine described as the largest in Bull’s history. The enlarged factory allows Bull to work on both projects at once.
The two figures describe different commitments. The €554 million covers the funding for Alice Recoque, while €388 million is the value of Bull’s Finnish contract. For Bull, the test of the new capacity is its ability to move both systems through production without having to finish one before beginning the other.
CSC expects LUMI-AI to increase the AI capacity of the existing LUMI system tenfold and to become operational in the second half of 2027. Bull has also delivered JUPITER in Jülich, Germany, where OVHcloud and Domyn are attempting to train advanced AI models.
Outside the public supercomputer programme, Airbus inaugurated Bull-built systems in Toulouse and Hamburg under a five-year agreement, Reuters reported. Bull disputed a reported valuation of close to €100 million. The systems tripled Airbus’s computing capacity for simulations. That agreement gives Bull a commercial customer alongside the nationally and EU-funded projects occupying its expanded plant.
France’s Bull purchase and EuroHPC orders
France acquired Bull from Atos on 31 March at a valuation of up to €404 million. The factory investment follows that change of ownership. Bull’s chief executive, Emmanuel Le Roux, said the company had won 15 of the 18 tenders issued by EuroHPC, the EU body that funds supercomputers with member states, Mezha reported.
The EU is allocating €7 billion between 2021 and 2027 to a supercomputer network intended to narrow the computing gap with the United States and China. Angers is Europe’s only plant dedicated entirely to building supercomputers, Techzine reported. Bull has competed for EuroHPC work against companies including HPE.
Bull uses processors from Nvidia, AMD or Intel according to the customer. European-made components account for 70% of its systems, compared with 20% to 30% five years ago. The mix leaves its production programme tied to both European components and processors supplied by those companies.
Bull is due to deliver Alice Recoque to the French Alternative Energies and Atomic Energy Commission in early 2027, Le Monde reported.
