Bull (ex Eviden)
Bull (the Eviden name is being retired) is genuine in-house rack-scale engineering: fan-less warm-water DLC proven at exascale on JUPITER, designed and built at its own Angers factory, and 100% French-State owned since March 2026. The European sovereign choice. Note that its NVL72-class Blackwell racks currently come via a Supermicro distribution deal, not its own chassis.
- Genuine in-house design house: BullSequana XH3500 (Nov 2025) ships fan-less 5th-generation direct liquid cooling, an iterative in-house DLC lineage
- Continuous supercomputer engineering from Bull (1931) through BullSequana XH2000, XH3000, XH3500: own board, blade and rack engineering by internal R&D
- BullSequana servers designed by internal R&D and manufactured entirely at the Angers, France factory, with an in-house staging lab for acceptance testing
- JUPITER, Europe's first exascale supercomputer, runs on BullSequana XH3000 with Bull's patented DLC; its JEDI module topped the June 2025 Green500
- Caveat: for GB200 NVL72 rack-scale, Bull currently distributes Supermicro's AI SuperCluster rather than shipping its own NVL72 chassis
| Model | Platform | Form factor | Cooling |
|---|---|---|---|
| BullSequana XH3500 Fan-less 5th-gen DLC, 40C warm-water capable, unveiled Nov 2025 | GH200 (Blackwell roadmap) | modular liquid-cooled rack | DLC |
| BullSequana XH3000 Powers JUPITER at Julich (~24,000 GH200); JEDI module #1 on June 2025 Green500 | GH200 | exascale-class rack | DLC |
| BullSequana AI600 series Enterprise AI line incl. pre-integrated Gen AI in a Box | HGX H100/H200 | rackmount | TBD |
| Supermicro AI SuperCluster (distributed) Distribution deal, not an in-house Bull design | GB200 NVL72 | rack-scale | DLC |
- Listed NVIDIA datacenter system partner for RTX PRO Servers with Blackwell, alongside Cisco, Dell, HPE, Lenovo, Supermicro
- BullSequana XH3000/XH3500 integrate NVIDIA GH200 Superchips and Quantum-2 InfiniBand, with a Blackwell/Blackwell Ultra roadmap
- Nov 2025 partnership with Supermicro to distribute GB200 NVL72 AI SuperClusters across Europe, India, Middle East and South America
- Angers, France: flagship factory, described as Europe's only supercomputer manufacturing plant, with staging lab acceptance center
- Next-generation Angers factory under construction for 2027, designed to feed ~6 GWh of server waste heat into district heating
- The BullSequana business left Atos on March 31, 2026, rebranded Bull, and is now 100% French-State owned
- Strongest sovereign-EU positioning of any European builder: state ownership plus JUPITER as flagship reference
- In-house DLC is proven at exascale on GH200; NVL72-class Blackwell racks come via the Supermicro deal, an important buyer distinction
Is Bull (ex Eviden) an OEM, ODM or integrator for NVIDIA AI servers?
Bull (ex Eviden) sits in the "Global OEMs" tier of our index. Genuine in-house design house: BullSequana XH3500 (Nov 2025) ships fan-less 5th-generation direct liquid cooling, an iterative in-house DLC lineage
Does Bull (ex Eviden) design its NVIDIA servers in-house?
Bull (the Eviden name is being retired) is genuine in-house rack-scale engineering: fan-less warm-water DLC proven at exascale on JUPITER, designed and built at its own Angers factory, and 100% French-State owned since March 2026. The European sovereign choice. Note that its NVL72-class Blackwell racks currently come via a Supermicro distribution deal, not its own chassis.
Which NVIDIA platforms does Bull (ex Eviden) ship?
Bull (ex Eviden) ships systems on GH200 (Blackwell roadmap), GH200, HGX H100/H200, GB200 NVL72. The systems table on this page lists the specific models.
Where does Bull (ex Eviden) manufacture its AI servers?
Angers, France: flagship factory, described as Europe's only supercomputer manufacturing plant, with staging lab acceptance center. Next-generation Angers factory under construction for 2027, designed to feed ~6 GWh of server waste heat into district heating