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Data Center Cooling Companies

Who cools data centers: infrastructure and thermal-management suppliers, liquid and direct-to-chip specialists, heat-rejection makers, and the standards bodies behind them. Grouped by role, not ranked. Links go to each company's site.

30 companies•4 categories•Updated November 2026

Cooling Infrastructure & Thermal Management

11 entries

Makers of the chillers, air handlers, coolant distribution units, racks and rear-door systems that remove heat from data halls.

01VertivPower, cooling and infrastructure for data centers, including thermal management and liquid cooling. 02Schneider ElectricData center power and cooling. Schneider agreed in October 2024 to buy a 75% stake in liquid-cooling maker Motivair for $850 million, and French financial press reported it completed in February 2025. 03EatonElectrical power management that has moved into thermal management. Eaton said on 12 March 2026 that it had completed its purchase of Boyd Thermal. 04Trane TechnologiesCommercial HVAC maker. Trane Technologies announced on 3 March 2026 that it had completed its acquisition of liquid-cooling maker LiquidStack. 05CarrierCommercial HVAC solutions for efficient, reliable cooling, per its site. 06Johnson ControlsData center solutions designed to speed deployment and improve efficiency, per its site. 07Daikin AppliedCommercial HVAC manufacturer with chillers and air-handling products used in data center cooling. 08STULZComputer room air conditioners and air handlers for data centers and other mission-critical applications, per its site. 09MuntersClimate-control and air-treatment specialist with data center cooling products. 10RittalEnclosures, racks and IT cooling products for data centers. 11nVentSays it has over 15 years of experience in liquid cooling for data centers, per its site.

Liquid & Direct-to-Chip Cooling Specialists

10 entries

Cold plates, coolant distribution units, immersion and two-phase systems for high-density AI racks.

12CoolIT SystemsLiquid cooling with CDUs, cold plates and heat exchangers for HPC, AI and enterprise systems, per its site. Ecolab completed its roughly $4.75 billion acquisition of CoolIT on 2 July 2026, according to Ecolab's SEC filing. 13LiquidStackEnergy-efficient liquid cooling for data centers, per its site. Now part of Trane Technologies. 14MotivairLiquid-cooling maker for high-density computing, in which Schneider Electric agreed to buy a 75% stake. 15AsetekDanish liquid-cooling company supplying direct-to-chip cooling for servers. 16IceotopeOffers IP licensing and OEM/ODM partnerships for data center cooling technologies, per its site. 17SubmerImmersion cooling and data center infrastructure provider. 18GRC (Green Revolution Cooling)Immersion cooling systems for data centers. 19ZutaCoreWaterless direct-to-chip two-phase liquid cooling using pool boiling, per its site. 20JetCoolDirect-to-chip liquid cooling systems for data centers, HPC and AI infrastructure, per its site. 21AccelsiusTwo-phase direct-to-chip cooling for AI and high-performance computing.

Heat Rejection, Cooling Towers & Water

4 entries

Cooling towers, dry coolers and heat exchangers that reject heat outside the building.

22Baltimore Aircoil Company (BAC)Cooling towers, evaporative condensers, immersion coolers and dry coolers, per its site. 23EVAPCOEmployee-owned maker of heat transfer equipment, including evaporative cooling products, per its site. 24SPX Cooling TechnologiesManufacturer of cooling towers, fluid coolers, evaporative condensers and air-cooled heat exchangers, per its site. 25Alfa LavalHeat exchanger specialist whose products are used in data center cooling loops.

Research, Standards & Industry Bodies

5 entries

Neutral guidance on thermal design, efficiency and resilience.

26ASHRAEPublishes thermal guidelines for data center environments. 27Open Compute ProjectOpen hardware community with work on advanced cooling and rack designs. 28Uptime InstituteTier certification and research on data center design, build and operations, per its site. 29The Green GridIndustry group on data center efficiency and PUE. 30Berkeley Lab: 2024 US Data Center Energy Usage ReportLawrence Berkeley National Laboratory estimates of US data center electricity use, including the share used by cooling.

Related Pages

8 entries

Related directories on this site.

31Top Data Center Power CompaniesPower infrastructure, generation and utilities behind data centers. 32Colocation Service ProvidersOperators that rent space, power and cooling for your servers. 33IT Infrastructure Hardware CompaniesServers, storage and networking hardware vendors. 34GPU Cloud ProvidersClouds built around GPU capacity, the main source of rack heat. 35AI Chip ProvidersAccelerator makers whose chips drive rack power density. 36Digital InfrastructureDigital infrastructure hub. 37Data Center Networking CompaniesSwitching, silicon, optics and software that connect data centers. 38Data Center Storage CompaniesStorage arrays, AI data platforms, object storage and drive makers.

Frequently Asked Questions

Why is cooling becoming harder for data centers?

AI servers pack far more power into each rack, and almost all of it turns into heat. Air cooling struggles at high rack densities, so operators add liquid cooling, such as cold plates on chips, immersion tanks and coolant distribution units, alongside traditional chillers and air handlers.

What kinds of cooling companies are listed?

Four groups: infrastructure and thermal-management suppliers (Vertiv, Schneider Electric, Trane, Carrier), liquid and direct-to-chip specialists (CoolIT, LiquidStack, ZutaCore, Iceotope), heat-rejection and cooling-tower makers (BAC, EVAPCO, SPX, Alfa Laval), and research and standards bodies (ASHRAE, Uptime Institute, Open Compute Project).

What is the difference between direct-to-chip and immersion cooling?

Direct-to-chip cooling pipes liquid to cold plates attached to processors, while the rest of the server is still air cooled. Immersion cooling submerges servers in a non-conductive fluid, either in a single phase or with a boiling two-phase fluid. Vendor sites describe both approaches.

Which cooling companies have been acquired recently?

Company announcements and filings report that Trane Technologies completed its acquisition of LiquidStack on 3 March 2026, Eaton completed its purchase of Boyd Thermal on 12 March 2026, and Ecolab completed its roughly $4.75 billion purchase of CoolIT Systems on 2 July 2026. Schneider Electric agreed in 2024 to buy a 75% stake in Motivair. Check each company's announcements for terms.

What is PUE and how does cooling affect it?

Power usage effectiveness is the ratio of total facility energy to IT equipment energy. Cooling is one of the largest non-IT loads, so more efficient cooling lowers PUE. The Green Grid created the metric.

Does this page cover power and colocation?

No. See Top Data Center Power Companies for power infrastructure, generation and utilities, and Colocation Service Providers for operators that rent space, power and cooling.

How current is this page?

Links were checked on 4 November 2026. Vertiv, Schneider Electric, Motivair, Asetek, Submer, GRC, Accelsius, ASHRAE, the Open Compute Project and Berkeley Lab returned 403 to automated checks, which looks like bot blocking, and Eaton did not respond, so those links may need a manual click. Deal dates come from company announcements and filings and may change. Descriptions are not independent rankings or performance comparisons.