What Berkshire makes for data centers
public
Berkshire is a publicly listed company. It appears on 2 parts of the AI data center — LV cable, wire, tray, raceway and Single-phase dielectric — in the role of manufacturer. Those parts sit in Layer 5 — Liquid cooling (IT-side: chip to CDU) and Layer 7 — Electrical: power distribution (grid to rack). Its shares trade on US exchanges (NYSE/Nasdaq) as BRK-B.
Listing
US exchanges (NYSE/Nasdaq): BRK-B· 542 USD -1.10% · mkt cap 1.16T USD
Snapshot 2026-10-25T10:41:17Z — nightly, not real-time.· Chart on TradingView ↗
Exposure
0 parts across 2 layers
No disclosed data-center revenue share on file.
Units and subsidiaries: Cerro/Marmon, Lubrizol
Parts, by layer
Layer 5 — Liquid cooling (IT-side: chip to CDU)
| Part | Role | Confidence | Competitors | Note |
|---|---|---|---|---|
| Single-phase dielectric (via Lubrizol) | manufacturer | inferred | ExxonMobil, Shell, Cargill, Castrol, Engineered Fluids, Lubrizol |
Layer 7 — Electrical: power distribution (grid to rack)
| Part | Role | Confidence | Competitors | Note |
|---|---|---|---|---|
| LV cable, wire, tray, raceway (via Cerro/Marmon) | manufacturer | inferred | Belden, Furukawa, Hengtong, Nexans, Prysmian, Sumitomo Electric |
Where Berkshire sits in the stack
Berkshire's placements in this catalog cover 2 parts, from layer 5 (liquid cooling (it-side: chip to cdu)) to layer 7 (electrical: power distribution (grid to rack)). None of them currently carries a sourced supply constraint tag.
What these parts are
- Single-phase dielectric — Single-phase dielectric fluids that stay liquid throughout the loop and are used mainly in open-tank immersion cooling systems.
- LV cable, wire, tray, raceway — Low-voltage power cable and wire, and the tray and raceway systems that route and support it between switchgear, PDUs, and racks.
Questions about Berkshire
- What does Berkshire make for AI data centers?
- This catalog places Berkshire on 2 parts: LV cable, wire, tray, raceway (manufacturer) and Single-phase dielectric (manufacturer).
- Is Berkshire publicly traded?
- Yes — Berkshire is listed on US exchanges (NYSE/Nasdaq) under BRK-B. Prices shown on this page are a nightly snapshot, not real-time, and nothing here is investment advice.
- Who else makes LV cable, wire, tray, raceway for AI data centers?
- Belden, Furukawa, Hengtong, Nexans, Prysmian and Sumitomo Electric are also placed on LV cable, wire, tray, raceway in this catalog.
- How well sourced are these placements?
- Every part→company placement carries a confidence tag. For Berkshire the mix is 2 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.