What Eviden/Atos makes for data centers
public · HQ France
Eviden/Atos is a publicly listed company and based in France. It appears on 1 part of the AI data center — Rack-scale systems — in the role of oem. That part sits in Layer 4 — Servers, racks & integration. Its shares trade on Euronext Paris as ATO.PA.
Listing
Euronext Paris: ATO.PA· 23.28 EUR -3.00% · mkt cap 460M EUR
Snapshot 2026-10-25T10:41:17Z — nightly, not real-time.· Chart on TradingView ↗
Exposure
1 part across 1 layer
No disclosed data-center revenue share on file.
Parts, by layer
Layer 4 — Servers, racks & integration
| Part | Role | Confidence | Competitors | Note |
|---|---|---|---|---|
| Rack-scale systems | oem | inferred | Quanta Computer, AMD, ASRock Rack, ASUS, Cisco, Compal |
Where Eviden/Atos sits in the stack
Eviden/Atos's placements in this catalog cover 1 part, all in layer 4, servers, racks & integration. None of them currently carries a sourced supply constraint tag. Across these parts it overlaps with other companies most often on the lines below.
What these parts are
- Rack-scale systems — A rack-scale system is the fully integrated cabinet of compute trays, switch trays, power shelves, cooling manifolds and busbar that ships as one wired unit rather than as discrete servers.
Closest peers in this catalog
Seen in real machines
Eviden/Atos is named in 3 of the rack teardowns and supercomputer breakdowns on this site. Each line below is a piece of that machine.
- JUPITER · supercomputer
- System design, integration and rack platform (BullSequana XH3000, delivered by the ParTec-Eviden consortium) (consortium lead; BullSequana XH3000 racks and blades, integrated at its Angers factory; Eviden now trades as Bull)
- Booster compute node (4x GH200 superchips, 4x NDR200 InfiniBand adapters, 960 GB NVMe boot disk; 5,884 nodes in about 125 racks) (BullSequana XH3000 node design)
- Rack-level cooling (BullSequana XH3000 direct liquid cooling on warm water, 37-47 C circulating) (patented direct liquid cooling built into the XH3000 rack and blade design)
- and 3 more on the JUPITER page
- Leonardo · supercomputer
- System design, integration and rack platform (BullSequana XH2000 cabinets, 155 racks of 2 tons each; 138 compute racks) (system integrator and cabinet designer; Eviden is the Atos high-performance computing business, listed by TOP500 under the name Bull)
- Compute blades (Booster: single-node X2135 'Da Vinci' GPU blade, fan-less and liquid-cooled; Data Centric: three-node X2140 CPU blade) (designs both blade types)
- In-cabinet liquid cooling (XH2000 direct liquid cooling on warm water: cold plate on every 1U blade, hydraulic chassis with heat exchanger, secondary manifolds, non-spill quick disconnects) (the direct-liquid-cooling system is part of the XH2000 cabinet design; the brochure describes the hydraulic chassis as transferring 95% of the heat between the primary and secondary loops)
- and 2 more on the Leonardo page
- MareNostrum 5 · supercomputer
- System design, contract and rack platforms (Bull SAS / Eviden BullSequana XH3000 for the accelerated partition, Lenovo ThinkSystem for the general-purpose partition) (contractor selected by the EuroHPC JU (as Bull SAS, Atos); BullSequana XH3000 platform for the ACC partition)
- Accelerated-partition compute node (Eviden-designed: 2 Xeon 8460Y+, 4 H100 on NVLink, 512 GB DDR5, 480 GB NVMe; 1,120 nodes in 35 racks) (node designed by Atos R&D labs in France primarily for MareNostrum 5, per BSC's paper)
- In-rack liquid cooling and rear-door cooling (direct liquid cooling on a 32-42 C warm-water circuit, rear-door cold doors on a 17-27 C circuit) (all ACC node components are direct liquid cooled)
Questions about Eviden/Atos
- What does Eviden/Atos make for AI data centers?
- This catalog places Eviden/Atos on 1 part: Rack-scale systems (oem).
- Is Eviden/Atos publicly traded?
- Yes — Eviden/Atos is listed on Euronext Paris under ATO.PA. Prices shown on this page are a nightly snapshot, not real-time, and nothing here is investment advice.
- Where is Eviden/Atos based?
- France, per the company record in this catalog.
- Who else makes rack-scale systems for AI data centers?
- Quanta Computer, AMD, ASRock Rack, ASUS, Cisco and Compal are also placed on Rack-scale systems in this catalog.
- How well sourced are these placements?
- Every part→company placement carries a confidence tag. For Eviden/Atos the mix is 1 inferred. "disclosed" means the company or a filing says so; "reported" comes from trade press or a reference-design list; "inferred" is a lead from the taxonomy with no citation yet. Treat reported and inferred as leads, not facts.
Answers are generated from this catalog's own rows — see sources & method.