What Stulz makes for data centers
private
Stulz is a private company. It appears on 4 parts of the AI data center — Coolant distribution units, Rear-door heat exchangers, Chillers & compressors and CRAH / CRAC / fan walls / in-row units — in the role of manufacturer. Those parts sit in Layer 5 — Liquid cooling (IT-side: chip to CDU) and Layer 6 — Facility cooling & HVAC.
Exposure
4 parts across 2 layers
No disclosed data-center revenue share on file.
Parts, by layer
Layer 5 — Liquid cooling (IT-side: chip to CDU)
| Part | Role | Confidence | Competitors | Note |
|---|---|---|---|---|
| Coolant distribution units | manufacturer | inferred | Auras, Daikin, Delta Electronics, Envicool, Foxconn (Hon Hai), Johnson Controls | |
| Rear-door heat exchangers | manufacturer | inferred | Legrand, Vertiv, nVent, Coolcentric, Huawei, Motivair |
Layer 6 — Facility cooling & HVAC
| Part | Role | Confidence | Competitors | Note |
|---|---|---|---|---|
| Chillers & compressors | manufacturer | disclosed | Schneider Electric, Carrier, Daikin, Gree, Johnson Controls, LG | |
| CRAH / CRAC / fan walls / in-row units | manufacturer | inferred | Schneider Electric, Daikin, Envicool, Johnson Controls, Kingspan, Mitsubishi Electric |
Where Stulz sits in the stack
Stulz's placements in this catalog cover 4 parts, from layer 5 (liquid cooling (it-side: chip to cdu)) to layer 6 (facility cooling & hvac). 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
- 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.
- Chillers & compressors — Chillers use a vapor-compression or absorption cycle, built around a compressor, to produce chilled water for the facility's cooling loop.
- 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).
Closest peers in this catalog
Latest feed
- Stulz launches new air cooling systems for Edge data centers — Data Center Dynamics, 2026-09-07Stulz launched new air cooling systems specifically designed for Edge data centers.
Questions about Stulz
- What does Stulz make for AI data centers?
- This catalog places Stulz on 4 parts: Coolant distribution units (manufacturer), Rear-door heat exchangers (manufacturer), Chillers & compressors (manufacturer) and CRAH / CRAC / fan walls / in-row units (manufacturer).
- Is Stulz publicly traded?
- No listing is on file for Stulz in this catalog; it is recorded as private.
- Who else makes coolant distribution units for AI data centers?
- Auras, Daikin, Delta Electronics, Envicool, Foxconn (Hon Hai) and Johnson Controls are also placed on Coolant distribution units in this catalog.
- How well sourced are these placements?
- Every part→company placement carries a confidence tag. For Stulz the mix is 1 disclosed and 3 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.