What Boyd makes for data centers
private · HQ United States · boydcorp.com
Ownership: Boyd Thermal sold to Eaton (announced Nov 2025, closed 2026-03-12); remaining Boyd ownership under review
Boyd makes liquid and air thermal-management hardware for data centers: single- and two-phase cold plates, coolant distribution units, rack manifolds and cooling loops, heat exchangers, and air-cooled heatsinks and vapor chambers. Its thermal business ("Boyd Thermal") was sold by Goldman Sachs Asset Management to Eaton in a deal that closed in March 2026, so the data-center product lines now sit inside Eaton.
Parts, by layer
Layer 1 — Compute silicon & packaging
Layer 4 — Servers, racks & integration
| Part | Role | Confidence | Competitors | Note |
|---|---|---|---|---|
| Air-cooled heatsinks & vapor chambers | manufacturer | inferred | AVC, Auras, Chaun-Choung CCI, Delta Electronics, Foxconn (Hon Hai), Jentech |
Layer 5 — Liquid cooling (IT-side: chip to CDU)
| Part | Role | Confidence | Competitors | Note |
|---|---|---|---|---|
| Direct-to-chip cold plates | manufacturer | disclosed | AVC, Auras, Delta Electronics, Flex, Fositek, Foxconn (Hon Hai) | |
| Rack manifolds | manufacturer | disclosed | AVC, Auras, Delta Electronics, Foxconn (Hon Hai), Kaori, Parker Hannifin | |
| Coolant distribution units | manufacturer | inferred | Auras, Daikin, Delta Electronics, Envicool, Foxconn (Hon Hai), Johnson Controls |
Where Boyd sits in the stack
Boyd's placements in this catalog cover 5 parts, from layer 1 (compute silicon & packaging) to layer 5 (liquid cooling (it-side: chip to cdu)). 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
- Chip-level thermal: lids, heat spreaders, TIMs — The metal lids, heat spreaders, and thermal interface materials applied directly at the die level to move heat off an accelerator package before it ever reaches a cold plate or heat sink.
- Air-cooled heatsinks & vapor chambers — The finned aluminum or copper heatsinks and vapor chambers that spread and dissipate heat from chips that rely on airflow (4.13) rather than a liquid cold plate.
- Direct-to-chip cold plates — A metal plate with internal microchannels, bonded or clamped directly onto a GPU, CPU, or switch package, that carries coolant across the die to remove heat by conduction rather than airflow.
- Rack manifolds — The manifold (sometimes called a CDM) that distributes coolant from the CDU supply line to each cold plate in a rack and collects the return flow, usually mounted vertically at the rear or side of the rack.
- 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.
Closest peers in this catalog
Seen in real machines
Boyd is named in 1 of the rack teardowns and supercomputer breakdowns on this site. Each line below is a piece of that machine.
- Nvidia GB300 NVL72 · rack teardown
- Cold plates (GPU, CPU, NVSwitch)
- Rack manifolds
- CDU (in-rack or in-row)
From the blog
Questions about Boyd
- What does Boyd make for AI data centers?
- This catalog places Boyd on 5 parts: Chip-level thermal: lids, heat spreaders, TIMs (manufacturer), Air-cooled heatsinks & vapor chambers (manufacturer), Direct-to-chip cold plates (manufacturer), Rack manifolds (manufacturer) and Coolant distribution units (manufacturer).
- Is Boyd publicly traded?
- No listing is on file for Boyd in this catalog; it is recorded as private.
- Where is Boyd based?
- United States, per the company record in this catalog.
- Who else makes chip-level thermal: lids, heat spreaders, TIMs for AI data centers?
- Dow, Henkel, Honeywell, Jentech, Shin-Etsu and Fujipoly are also placed on Chip-level thermal: lids, heat spreaders, TIMs in this catalog.
- How well sourced are these placements?
- Every part→company placement carries a confidence tag. For Boyd the mix is 2 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.
Verification: needs_review, last verified 2026-08-27. Sources: www.boydcorp.com · www.eaton.com.· Markdown · JSON