Submer

Company brief

What Submer does

Submer began with single-phase immersion tanks and has expanded outward into direct-to-chip cooling, modular data-center design, development, operations, and computing services. The linked SmartPodXL represents the original equipment layer: servers are submerged in dielectric fluid, and a separate water loop carries heat from the tank to the facility. The company's broader scope can suit buyers looking for both thermal equipment and a packaged facility, but those are different procurement and operating commitments.

The linked records show that distinction. A 56-megawatt Barcelona facility is company-announced with no public construction milestones, a Madhya Pradesh memorandum covers up to 1 gigawatt but is a statement of intent rather than built capacity, and the Stellium project is a smaller Open Compute Project-aligned proof of concept. Buyers should separate installed references from plans, then verify server and component compatibility with the fluid, lifting and draining procedures, fluid supply and disposal, filtration, heat-rejection design, and local service.

For direct-to-chip or hybrid proposals, they should also identify whose cold plates are used and who warrants the complete loop. Submer's website reports large deployment, energy, and water figures, but does not expose the project-by-project basis needed to compare them. The product, deployment, and group-scope evidence in this profile is company-reported; operating status and performance should be confirmed with named customers and site acceptance records.

Use the connected product and deployment records to distinguish a stated capability from evidence that the company has delivered it.