Rittal vs Stulz
Rittal and Stulz are both placed on 3 of the same AI data center parts in this catalog, spanning layers 5, 6. Rittal appears on 6 parts in total and Stulz on 4.
At a glance
| Rittal | Stulz | |
|---|---|---|
| Ownership | private | private |
| Headquarters | Herborn, Germany | not on file |
| Primary listing | none in catalog | none in catalog |
| Parts placed | 6 | 4 |
| Layers covered | 4 | 2 |
| Units / subsidiaries | 0 | 0 |
| Seen in machines | 2 | 0 |
Market caps are a nightly snapshot in each listing's own currency, never converted.
What the shared parts are
- Coolant distribution units — The unit that separates the IT-side (technology) coolant loop from the facility water loop, exchanging heat between them and pumping and filtering the technology-side flow — sized from in-rack and in-row units up to multi-megawatt facility-class units.
- Rear-door heat exchangers — A heat exchanger mounted on the rear door of a server rack that cools exhaust air with chilled water or refrigerant before it leaves the rack, without cooling the chips directly.
- CRAH / CRAC / fan walls / in-row units — CRAH, CRAC, fan-wall, and in-row units circulate conditioned air across IT equipment in air-cooled halls, using either facility chilled water (CRAH) or an internal refrigerant circuit (CRAC).
The 3 parts both make
| Part | Rittal | Stulz |
|---|---|---|
| Coolant distribution units Layer 5 — Liquid cooling (IT-side: chip to CDU) | manufacturer inferred | manufacturer inferred |
| Rear-door heat exchangers Layer 5 — Liquid cooling (IT-side: chip to CDU) | manufacturer inferred | manufacturer inferred |
| CRAH / CRAC / fan walls / in-row units Layer 6 — Facility cooling & HVAC | manufacturer disclosed | manufacturer inferred |
Only Rittal
- Rack PDUs layer 4
- Prefab / modular data centers & power/cooling skids layer 9
- Enclosures layer 4
Only Stulz
- Chillers & compressors layer 6
Questions
- Do Rittal and Stulz compete?
- In this catalog they are both placed on 3 of the same parts, across 2 layers: Coolant distribution units, Rear-door heat exchangers, CRAH / CRAC / fan walls / in-row units. Sharing a part does not mean selling the same product to the same buyer, so read each row's product note.
- Which has more placements, Rittal or Stulz?
- Rittal has 6 placements and Stulz has 4. Placement counts reflect how thoroughly each company has been catalogued as well as its real breadth, so they are not a ranking.
Generated from the catalog's part-to-company table. Each placement is tagged disclosed, reported or inferred; see sources & method. Neither company is endorsed or ranked here.