What Toshiba makes for data centers
private
Ownership: JIP since 2023
Toshiba is a private company. It appears on 3 parts of the AI data center — HDD, Large power transformers (345–765 kV) & substations and UPS (static, modular, rotary/DRUPS) & UPS power semis — in the role of manufacturer. Those parts sit in Layer 2 — Memory & storage and Layer 7 — Electrical: power distribution (grid to rack). Large power transformers (345–765 kV) & substations is flagged as a supply constraint in this catalog.
Exposure
3 parts across 2 layers · 1 constrained
No disclosed data-center revenue share on file.
Parts, by layer
Layer 2 — Memory & storage
| Part | Role | Confidence | Competitors | Note |
|---|---|---|---|---|
| HDD | manufacturer | disclosed | Seagate, Western Digital |
Layer 7 — Electrical: power distribution (grid to rack)
| Part | Role | Confidence | Competitors | Note |
|---|---|---|---|---|
| Large power transformers (345–765 kV) & substationsconstrained | manufacturer | inferred | CG Power, GE Vernova, Hyosung Heavy, Hyundai Electric, Končar, LS Electric | |
| UPS (static, modular, rotary/DRUPS) & UPS power semis | manufacturer | disclosed | Schneider Electric, ABB, Cyber Power, Delta Electronics, Eaton, Fuji Electric |
Where Toshiba sits in the stack
Toshiba's placements in this catalog cover 3 parts, from layer 2 (memory & storage) to layer 7 (electrical: power distribution (grid to rack)). One of them is tagged constrained, meaning a sourced shortage rather than a long lead time. Across these parts it overlaps with other companies most often on the lines below.
What these parts are
- Large power transformers (345–765 kV) & substationsconstrained — Grid-scale transformers and switchyards that step transmission voltage down to what a data center campus can use, plus the substation civil works around them.
- HDD — Spinning hard disk drives used for the bulk, lower-cost nearline and object storage tier that holds data too large or too cold to justify keeping on flash.
- UPS (static, modular, rotary/DRUPS) & UPS power semis — Uninterruptible power supplies that bridge the gap between a utility outage and generator start, built as static (battery-based), modular, or rotary/diesel-rotary (DRUPS) designs, plus the power semiconductors inside them.
Closest peers in this catalog
Latest feed
- Western Digital bets on pricing and HAMR, not new capacity, as Toshiba plans to double output — DigiTimes, 2026-10-23Western Digital plans to increase pricing and density of its HDDs rather than building new capacity, relying on HAMR adoption while Toshiba aims to double its output.
- Seagate and Toshiba battle for TDK's HDD head business, a critical hard drive component — Tom's Hardware, 2026-10-07Seagate and Toshiba are competing to acquire the hard drive head business from TDK, a critical component for high-capacity storage.
- Seagate, Toshiba reportedly compete for TDK's HDD head unit, a key AI storage link — DigiTimes, 2026-10-07Seagate and Toshiba are reportedly competing to secure a supply of HDD head units from TDK, which are essential components for high-capacity AI storage.
- Toshiba to double HDD production capacity amid devastating shortages — Tom's Hardware, 2026-10-02Toshiba is planning to double its hard disk drive production capacity to address significant supply shortages.
- Japan power semiconductor deal stalls as Rohm, Toshiba, Mitsubishi haggle — DigiTimes, 2026-10-02Negotiations have stalled regarding a power semiconductor deal involving major Japanese manufacturers Rohm, Toshiba, and Mitsubishi.
- Toshiba reportedly to double HDD production as AI drives storage demand — DigiTimes, 2026-10-02Toshiba is reportedly doubling its hard disk drive production to meet the surging storage demands driven by artificial intelligence.
Questions about Toshiba
- What does Toshiba make for AI data centers?
- This catalog places Toshiba on 3 parts: HDD (manufacturer), Large power transformers (345–765 kV) & substations (manufacturer) and UPS (static, modular, rotary/DRUPS) & UPS power semis (manufacturer).
- Is Toshiba publicly traded?
- No listing is on file for Toshiba in this catalog; it is recorded as private.
- Who else makes HDD for AI data centers?
- Seagate and Western Digital are also placed on HDD in this catalog.
- How well sourced are these placements?
- Every part→company placement carries a confidence tag. For Toshiba the mix is 2 disclosed and 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.