In this article, we will list the 5 Fastest-Growing Data Center Cooling Stocks to Invest in Right Now. Please visit 10 Fastest-Growing Data Center Cooling Stocks to Invest in Right Now if you’d like to see an extended list.
To compile our list of the fastest-growing data center cooling stocks, we screened publicly traded companies with exposure to data center cooling, including facility-level HVAC systems, liquid-cooling infrastructure, and server/rack-level thermal-management components. We then selected stocks that had the highest year-over-year revenue growth rate. Companies with severe balance sheet stress, persistent going-concern risk, or weak relevance to data center cooling were excluded from the final list.
5. Delta Electronics (Thailand) Public Company Limited (OTC:DLEGF)
Delta Electronics (Thailand) Public Company Limited (OTC:DLEGF) is one of the fastest-growing data center cooling stocks to invest in right now. The company’s latest cooling angle came on June 5, 2026, when it announced a prefabricated AI modular data center solution unveiled at COMPUTEX 2026, designed to cut deployment time by up to 60%. The system integrates an 800VDC high-voltage power architecture with advanced liquid cooling technologies, giving Delta a role in both the electrical and thermal redesign of high-density AI facilities.
Delta’s cooling portfolio is also moving closer to the chip and rack level. At COMPUTEX 2026, held from June 2 to June 5, the company highlighted a 3 MW GoCool liquid-to-liquid coolant distribution unit, a 2.4 MW in-row CDU, a modular 1.5 MW in-row CDU, and a cold plate for NVIDIA Vera Rubin NVL72 systems. Its AI containerized data center solution also supports liquid-cooled AI servers and up to 60 kW of IT load per rack. The push follows Delta’s April 22 memorandum of understanding with Daikin to collaborate on next-generation CDU solutions for AI and HPC data centers across ASEAN-Oceania.
Delta Electronics (Thailand) Public Company Limited (OTC:DLEGF) provides power management, thermal management, automation, data center infrastructure, telecom infrastructure, EV charging, and smart energy solutions.
4. Modine Manufacturing Company (NYSE:MOD)
Modine Manufacturing Company (NYSE:MOD) is one of the fastest-growing data center cooling stocks to invest in right now. The company’s strongest recent data center cooling angle came on May 26, 2026, when it announced a long-term capacity agreement with a strategic data center customer for Airedale by Modine cooling solutions. Under the agreement, Modine will reserve capacity to supply more than $4 billion of Airedale data center cooling products during calendar years 2027 through 2029, supported by a $165 million upfront cash payment from the customer to help fund capacity investments.
The agreement gives Modine unusually clear demand visibility in a cooling market being reshaped by high-density AI workloads. Airedale’s product positioning is built around data center thermal management, including chillers and heat rejection systems that help manage the rising heat load from GPU-heavy deployments. Earlier this year, Airedale also unveiled the TurboChill 3+MW, a hybrid air-cooled chiller platform designed for AI data centers, with free-cooling capability and mechanical cooling for peak heat loads. Modine’s fourth-quarter data center sales rose 158% year over year, showing that the cooling demand is already translating into segment growth.
Modine Manufacturing Company (NYSE:MOD) provides thermal management systems and solutions, including heating, cooling, ventilation, heat transfer, and data center cooling products.
3. nVent Electric plc (NYSE:NVT)
nVent Electric plc (NYSE:NVT) is one of the fastest-growing data center cooling stocks to invest in right now. The company’s latest data center cooling angle came on June 1, 2026, when Siemens announced a reference architecture for NVIDIA AI data centers that incorporated nVent-aligned design considerations. The reference design targets NVIDIA DSX Vera Rubin NVL72 deployments, where rising rack densities are pushing infrastructure requirements beyond traditional air-cooled setups and toward integrated power and cooling architectures.
nVent’s role in this shift is built around liquid cooling and high-density rack infrastructure. The company has said it has deployed more than two gigawatts of liquid cooling capacity globally, while its data center portfolio includes coolant distribution units, liquid-to-air heat rejection units, rear-door heat exchangers, rack manifolds, and high-density power distribution. In November 2025, nVent also unveiled modular row-based CDUs, rack-based CDUs, technology cooling system manifolds, and updated racks designed to support next-generation AI chips. The demand is already showing up financially, as nVent’s first-quarter 2026 sales rose 53% year over year, with Systems Protection sales up 76%.
nVent Electric plc (NYSE:NVT) provides electrical connection and protection solutions, including systems protection, enclosures, liquid cooling, racks, power distribution, and electrical connection products for data centers, utilities, industrial, and commercial markets.
2. AAON, Inc. (NASDAQ:AAON)
AAON, Inc. (NASDAQ:AAON) is one of the fastest-growing data center cooling stocks to invest in right now. The company’s strongest recent angle came on May 7, 2026, when AAON raised its 2026 revenue growth outlook to 40%-45%, supported by a record backlog, expanded capacity, and improving production execution. The update showed that data center cooling demand is no longer just a product opportunity for AAON, but a major driver of backlog conversion and capacity utilization.
The clearest signal came from BASX, AAON’s advanced cooling and custom solutions brand. BASX-branded sales rose 72.4% year over year to $228.6 million in the first quarter, reflecting continued strength in data center cooling demand, higher production volumes, and increased use of recently commissioned capacity. AAON also said total backlog rose 107.4% year over year to $2.13 billion, with sequential backlog growth driven entirely by BASX. Within AAON Coil Products, growth was led by BASX-branded liquid cooling sales of $93.2 million, up 40.5% year over year, while improved throughput at the Longview facility helped support operating leverage.
AAON, Inc. (NASDAQ:AAON) designs and manufactures commercial, industrial, and data center HVAC and thermal management solutions under the AAON and BASX brands.
1. Comfort Systems USA, Inc. (NYSE:FIX)
Comfort Systems USA, Inc. (NYSE:FIX) is one of the fastest-growing data center cooling stocks to invest in right now. The company’s current investor angle is tied to Wall Street’s growing confidence that AI data center construction can keep driving demand for its mechanical and HVAC services. On June 8, 2026, UBS raised its price target on Comfort Systems USA to $2,125 from $1,992 and maintained a Buy rating after meeting with management. The firm said company comments pointed to a robust demand backdrop led by data centers, with strength also coming from semiconductors, healthcare, and education, and saw evidence that the current environment could persist through 2027.
The growth profile supports that view. Comfort Systems reported first-quarter revenue of $2.87 billion, up 56.8% year over year, while same-store revenue increased 51%. Backlog also rose to $12.45 billion from $6.89 billion a year earlier, giving the company strong visibility as customers continue building large, complex facilities. For this list, Comfort Systems’ relevance comes from its role in constructing the mechanical backbone of data centers, including HVAC, piping, controls, modular construction, and related cooling infrastructure.
Comfort Systems USA, Inc. (NYSE:FIX) provides mechanical and electrical contracting services, including heating, ventilation, air conditioning, plumbing, piping, controls, modular construction, and related services.
While we acknowledge the potential of FIX to grow, our conviction lies in the belief that some other AI stocks hold greater promise for delivering higher returns and have limited downside risk. If you are looking for an AI stock that is more promising than FIX and that has 100x upside potential, check out our report about the cheapest AI stock.
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