As data centers power the global digital economy, cooling has emerged as a critical issue faced by companies. The surge in AI, high-performance computing, cloud, and edge workloads is driving higher rack densities while intensifying pressure to reduce energy use, emissions, and operating costs, making advanced cooling essential for performance and reliability.

In response, global top data center cooling companies such as Vertiv Group, Schneider Electric, Daikin Industries, Johnson Controls, and Trane, along with other specialists, are redefining data center cooling through air, liquid, and hybrid solutions. 

This article highlights the top 10 data center cooling companies in the world, examining their technologies, strengths, and roles in enabling efficient, high-density, and sustainable data center operations.

Top 10 Data Center Cooling Companies in the World 2026

Vertiv Group Corp.

Vertiv is a global leader in data center cooling, known for its end-to-end thermal management portfolio spanning advanced air and liquid cooling. The company strengthened its AI and high-density capabilities with the 2023 acquisition of CoolTera, adding coolant distribution units to support next-generation workloads. Its Liebert cooling systems and Energy Labs air-handling units are widely deployed for high-efficiency, low-carbon data center designs.

In 2024, Vertiv partnered with NVIDIA and Intel to launch Vertiv 360AI, a fully integrated power, cooling, monitoring, and services platform purpose-built for AI and high-performance computing data centers. The company has also been recognized by its leadership in digital monitoring, ESG-driven design, and circular economy practices within critical data center infrastructure.

Schneider Electric

Schneider Electric is one of the largest data center cooling and infrastructure companies in the world, offering flexible solutions for new builds, retrofits, and modular deployments through its EcoStruxure platform. The company supports varied cooling strategies from air systems to advanced liquid cooling, backed by global supply chain reach and integrated services such as EcoCare for installation and ongoing support.

Schneider Electric expanded its high-performance computing cooling portfolio by acquiring a major stake in Motivair, a specialist in liquid cooling and thermal management. In January 2026, Motivair by Schneider Electric launched the new MCDU-70, a 2.5 MW coolant distribution unit (CDU) designed for high-density AI and GPU workloads, positioning it among the highest-capacity CDUs available for next-generation data centers.

On the innovation front, Schneider Electric has advanced its “Grid to Chip and Chip to Chiller” initiative to unify power, cooling, rack, and IT management, with support from its DCIM 3.0 software, which integrates tightly with EcoStruxure for real-time monitoring and optimization. The company has also formed notable partnerships with NVIDIA on AI data center benchmarks and NTT DATA on modular edge solutions.

Daikin Industries, Ltd.

Daikin is recognized for its strength in air-based solutions, including CRAH units and high-efficiency chillers supported by Daikin on Site, a 24/7 cloud-based monitoring platform designed to reduce downtime and improve operational reliability. Its chillers meet the latest AHRI 550/590 and 551/591 standards and comply with ISO, ASME, and ASHRAE requirements.

The company has steadily expanded its sustainability focus. Since 2019, Daikin’s L∞P circular economy initiative has introduced VRV chillers and heat pumps using reclaimed refrigerants, saving more than 400,000 kg of virgin refrigerant and 3,590 tonnes of CO₂ emissions annually.

In November 2025, Daikin Applied Americas acquired Chilldyne, a specialist in negative-pressure liquid cooling systems for high-performance and AI data centers. The acquisition marks a strategic move into advanced liquid cooling, complementing Daikin’s existing portfolio and positioning the company to deliver end-to-end, high-efficiency cooling solutions for hyperscale and next-generation AI data centers.

Johnson Controls

Johnson Controls is a long-established leader in data center cooling, leveraging decades of HVAC expertise through its YORK chillers and Silent-Aire hyperscale solutions, which support both air- and water-based cooling across diverse climates. Its OpenBlue digital platform adds operational intelligence by optimizing energy use, monitoring performance, and improving uptime across large, distributed data center portfolios.

In June 2024, the company strengthened its market focus by launching a Global Data Center Solutions organization, designed to deliver end-to-end, integrated cooling solutions spanning design, installation, commissioning, maintenance, and monitoring. Most recently, in January 2026, Johnson Controls led a USD 65 million Series B investment in Accelsius, a two-phase direct-to-chip liquid cooling specialist, alongside Legrand.

Trane

Trane Technologies combines high-efficiency air cooling with liquid and immersion cooling, strengthened by its 2023 investment in LiquidStack. Its data center portfolio spans advanced HVAC systems, next-generation controllers, low-GWP refrigerants, heat pumps for district heating, and predictive maintenance services designed to reduce energy use and downtime.

A key differentiator is Trane’s engineering and design software ecosystem. The TRACE® suite enables accurate HVAC sizing, load simulation, and lifecycle cost analysis, while myCO2e™ helps quantify refrigerant-related carbon impact and myPLV® predicts real-world chiller performance across different climates and use cases. These tools support data center operators in optimizing both efficiency and sustainability from design through operation.

In January 2026, Trane launched the DCDA series CDU, the first locally developed coolant distribution unit for Asia-Pacific data centers. Combined with circular initiatives such as the R’Newal® Service Program and a 50% GHG reduction target by 2030, Trane is positioning itself as a scalable, sustainability-driven cooling provider for next-generation and AI-ready data centers.

STULZ GmbH

STULZ is an expert data center cooling company focused on supporting facilities across the full lifecycle from design and deployment to operation and optimization. The company delivers air and liquid cooling solutions for telecommunications, cloud, colocation, and enterprise IT environments, with systems engineered to scale alongside rapidly growing digital infrastructure.

STULZ is particularly recognized for its ability to address high-density AI, GPU, and HPC workloads, offering advanced thermal management technologies capable of handling extreme heat loads. Its global manufacturing footprint across Europe, Asia, and the Americas enables accelerated speed-to-market through pre-engineered and modular systems that integrate quickly into existing facilities.

Energy efficiency and sustainability are central to STULZ’s offering. Its cooling platforms incorporate free cooling, adiabatic cooling, liquid cooling, and low-GWP refrigerants, helping operators reduce energy consumption while meeting ESG and regulatory requirements.

Carrier

Carrier delivers data center cooling solutions built around air and free-cooling chillers using low-impact HFO refrigerants, aligning performance with sustainability goals. Its portfolio emphasizes reliability, energy efficiency, and lifecycle optimization to support mission-critical facilities.

To strengthen its liquid cooling capabilities, Carrier Ventures has partnered with Strategic Thermal Labs (STL), expanding its ability to address high-density and next-generation computing workloads. On the digital side, Carrier integrates Integrated DC Management (IDCM) with Automated Logic’s WebCTRL and Nlyte Asset & Energy Optimizer, giving operators deeper visibility and control across IT and supporting infrastructure.

Carrier’s approach centers on end-to-end lifecycle management, helping data centers maximize uptime, scale workloads, reduce operating costs, and meet sustainability targets through customizable, data-driven cooling solutions.

Rittal GmbH & Co. KG

Rittal stands out for its high-capacity liquid cooling portfolio, led by one of the industry’s most powerful solutions: a 1 MW CDU In-Row, designed to meet the extreme thermal demands of AI, GPU, and high-performance data centers. Its Direct Liquid Cooling (DLC) portfolio spans 70 kW to 1 MW, covering both liquid-to-air and liquid-to-liquid architectures.

For medium-density environments, Rittal offers rear-door heat exchanger solutions (70 kW) that cool AI chips using a water/glycol mixture and dissipate heat via rack-level air cooling. For high-density and hyperscale applications, its CDU In-Rack (150 kW) and CDU In-Row (1 MW) solutions leverage facility water supplies to remove heat far more efficiently than air-based systems.

Beyond liquid cooling, Rittal provides a comprehensive IT cooling ecosystem, including chillers, room cooling, aisle containment, Blue e+ rack cooling units, and modular cooling distribution units. This end-to-end approach allows operators to scale from single racks to full AI-ready data halls while maximizing energy efficiency, resilience, and space utilization.

Asetek, Inc.

Asetek is a pioneer in liquid and phase-change cooling, with nearly three decades of experience spanning desktop, HPC, and data center environments. Headquartered in Denmark with operations across the US and Asia, the company is widely recognized for designing OEM liquid cooling systems used by major brands such as Corsair and NZXT, as well as for its deep expertise in CPU and GPU thermal management.

In data centers, Asetek focuses on direct-to-chip liquid cooling solutions that enable higher compute density while reducing overall cooling energy use. Its InRackCDU™ is a warm-water Cooling Distribution Unit capable of removing up to 80 kW per rack, supporting high-wattage processors and dense interconnect architectures. 

By shifting heat removal closer to the source, Asetek’s technology helps operators deploy next-generation AI and HPC clusters while lowering total cost of ownership and improving thermal efficiency.

CoolIT Systems Inc.

CoolIT Systems Inc. is a global leader in Direct Liquid Cooling (DLC), purpose-built for AI, high-performance computing (HPC), and hyperscale data centers. Founded in 2001 and headquartered in Calgary, Canada, the company specializes in modular, scalable liquid cooling architectures that replace or complement traditional air cooling in high-density environments.

CoolIT’s technology stack is built around direct-to-chip cold plate cooling, using its patented Split-Flow™ micro-architecture to precisely target hot spots on CPUs and GPUs and maximize heat transfer. At the system level, the company offers Coolant Distribution Units (CDUs) and Technology Cooling Systems (TCS) that manage heat at rack and facility scale, enabling efficient warm-water cooling and higher rack power densities. 

Conclusion

As data centers continue to grow in size and complexity, cooling is no longer just a support function - it is central to how reliably and efficiently digital infrastructure operates. Higher computing power, especially from AI and data-intensive workloads, is generating more heat than ever before, while energy costs and environmental expectations are rising at the same time. This combination makes cooling one of the biggest challenges facing data center operators today.

Companies such as Vertiv, Schneider Electric, Daikin, Johnson Controls, Trane, STULZ, Carrier, Rittal, Asetek, and CoolIT Systems are at the forefront of this transition. By developing more efficient air systems, advancing liquid cooling technologies, and integrating smart software for monitoring and optimization, they help data centers run cooler, consume less energy, and operate more sustainably. Their innovations enable everything from hyperscale AI facilities to edge and enterprise data centers to scale safely and responsibly, making them essential partners in the future of the global digital infrastructure.

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