5.08

Who makes immersion cooling systems for AI data centers

Systems that submerge servers or trays directly in a dielectric fluid, either in open tanks (single-phase) or sealed chambers where the fluid boils and recondenses (two-phase), to cool the whole tray rather than individual dies.

Immersion cooling replaces the cold-plate-and-manifold chain entirely: instead of routing coolant to each die through a plate, the whole server tray sits in a bath of dielectric fluid that carries heat away by direct contact. Single-phase systems keep the fluid liquid throughout and rely on pumps and heat exchangers to move heat out of the tank; two-phase systems let the fluid boil at the hot surfaces and recondense at a coil, using the phase change itself to move heat more efficiently. It is a different mechanical and facility design from the rack-based direct-to-chip chain used elsewhere in this layer — servers and racks built for immersion need different chassis, connectors, and serviceability approaches, and retrofitting an existing air-cooled or direct-to-chip hall for immersion is a bigger undertaking than adding cold plates. Adoption has concentrated in specific use cases rather than becoming the default alongside direct-to-chip. Investors should watch it as a higher-conviction, narrower bet than direct-to-chip cooling: fewer vendors, less standardization, and adoption tied to specific operators and use cases rather than broad industry uptake.

Appears at:Enterprise / small coloLarge colo / hyperscale buildingAI campus· cooling:liquid — Deployment depends on a design choice to build for immersion rather than direct-to-chip; where used, tank or chamber count scales with server count rather than facility power tier.

Companies on this part (9)

CompanyRoleOwnershipTickerPrice1dConfidenceNote
Asperitasmanufacturerprivatedisclosed · source
Firmus (Sustainable Metal Cloud)manufacturerprivateinferred
GRCmanufacturerprivatedisclosed · source
Hypertecmanufacturerprivatedisclosed · source
Iceotopemanufacturerprivatedisclosed · source
LiquidStackmanufacturerprivateinferred
Midasmanufacturerprivatedisclosed · source
Submermanufacturerprivatedisclosed · source
TMGcoremanufacturerprivateinferred

Who competes here

The same table read the other way: every company above competes for immersion cooling systems sockets. Confidence tags matter — an inferred placement is a lead, not a confirmed rivalry.

Nearby parts

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Immersion Cooling Explained
MEP Academy — single- vs two-phase immersion cooling fundamentals
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Questions about immersion cooling systems

What are immersion cooling systems?
Systems that submerge servers or trays directly in a dielectric fluid, either in open tanks (single-phase) or sealed chambers where the fluid boils and recondenses (two-phase), to cool the whole tray rather than individual dies.
Which companies make immersion cooling systems for AI data centers?
This catalog lists 9 companies on Immersion cooling systems: Asperitas, Firmus (Sustainable Metal Cloud), GRC, Hypertec, Iceotope, LiquidStack, Midas, Submer, TMGcore.
How reliable are these immersion cooling systems supplier placements?
The 9 placements on this part break down as 6 disclosed, 3 inferred. "disclosed" means the company or a filing says so; "reported" comes from trade press or a reference-design list; "inferred" is a taxonomy lead with no citation yet.

Sources: placements without a source URL come from the taxonomy seed and are tagged accordingly. How this data is built.· Markdown · JSON