Top 8 Liquid Cooling Companies Powering the Modern Data Center

As rack power densities skyrocket and AI workloads explode, traditional air cooling has reached its physical limits. To manage these thermal demands, forward-thinking operators are turning to advanced liquid cooling solutions—such as direct-to-chip cold plates, coolant distribution units (CDUs), and immersion tanks. These technologies radically reduce Power Usage Effectiveness (PUE), enable heat reclamation, and support ultra-high watt-per-rack deployments.

If you are planning your next high-density build or retrofitting an existing facility, here are eight industry-leading liquid cooling companies you should know.

1. Asetek

Core Technology: Direct-to-Chip (D2C) & Rack-Level CDUs

Leveraging deep roots in the consumer and High-Performance Computing (HPC) markets, Asetek has successfully scaled its technology into enterprise data centers. Their engineered in rack cdu and D2C product lines are built to remove tens of kilowatts per rack. Designed to integrate seamlessly with existing legacy infrastructure, Asetek allows data centers to transition to liquid cooling with minimal disruption.

2. CoolIT Systems

Core Technology: Direct Liquid Cooling (DLC), Engineered CDUs & Coldplates

CoolIT Systems is a dominant player in the enterprise space, specializing in standard-setting coldplates, proprietary rack manifolds, and secondary-loop CDUs. They work closely with major server Original Equipment Manufacturers (OEMs) and hyperscale cloud providers. CoolIT’s scalable systems are highly optimized for dense HPC environments and intense AI cluster deployments.

3. LiquidStack

Core Technology: Two-Phase & Single-Phase Immersion Cooling, Modular Data Centers

Born from the rigorous demands of large-scale cryptocurrency mining, LiquidStack specializes in high-efficiency immersion cooling and modular systems. Their portfolio features turnkey immersion data halls and compact, prefabricated modular units. These designs are highly valued by hyperscale, cloud, and enterprise operators striving to maximize thermal efficiency and computing density in a condensed footprint.

4. Green Revolution Cooling (GRC)

Core Technology: Single-Phase Immersion Cooling

Overview: GRC is one of the most established and visible immersion cooling vendors in North America. Boasting production-grade deployments and deep partnerships with leading server OEMs, GRC simplifies thermal management by submerging entire servers in a custom dielectric fluid. Their solutions are highly cost-effective for retrofitting existing facilities, and recent product expansions have tailored this immersion technology for edge computing and smaller deployments.

5. Submer

Core Technology: Full-Stack Immersion Cooling & Data Center Services

Overview: Submer positions itself as a full-stack thermal partner, providing not only immersion tanks and modular systems but also end-to-end design and build engineering services. The company has aggressively expanded from hardware sales into building entire liquid-cooled facilities. By scaling toward massive, AI-focused infrastructure projects, Submer is helping pioneer the concept of "Data-Center-as-a-Service" (DCaaS).

6. Lian Li 

Core Technology: Full Chain Data Center Liquid Cooling Solution

Lian Li a leading global provider of liquid cooling solutions, offers one-stop liquid cooling solutions for data centers, including cold plates, server liquid-cooled cabinets, data center CDUS, and data center containers. With over 5 million liquid cooling units deployed and a total project power exceeding 10GW, Lian Li demonstrates significant economies of scale. Its products have obtained international authoritative certifications such as RoHS, CE, and UL.

7.  Iceotope

Core Technology: Precision Liquid Cooling

Rather than submerging the whole server, Iceotope specializes in precision delivery, targeting dielectric fluids directly to the highest-heat components (like CPUs and GPUs). This approach offers extreme efficiency gains for dense AI workloads. Because their platform-level architecture captures 100% of server heat via closed liquid loops, it allows enterprise operators and OEMs to deploy liquid cooling without altering standard rack form factors or risking electronics safety.

8. Asperitas

Core Technology: Natural-Convection Immersion & Modular Tanks

Asperitas offers specialized immersion cooling tanks that emphasize sustainability and energy efficiency. Known for their "Immersed Computing" concept, their systems leverage natural or forced convection fluid dynamics to circulate dielectric liquids. This design minimizes mechanical complexity, reduces the need for moving parts, and provides eco-conscious data center operators with an incredibly reliable, low-maintenance solution.

Why These Vendors Matter: A Quick Checklist

When evaluating liquid cooling options, these vendors address four critical modern data center challenges:

Exponentially Higher Density: Liquid transfers heat 2 to 10 times more efficiently than air, making it a strict requirement for high-density hardware.

Drastically Lower PUE: By removing power-hungry server fans and reducing chiller loads, liquid cooling significantly lowers energy costs and opens opportunities for facility heat reuse.

Footprint Optimization: Maximizing compute density means a smaller physical real estate requirement for the same amount of processing power, perfect for AI and HPC clusters.

Seamless Retrofitting: Many of these vendors offer rack-level retrofit solutions, allowing operators to transition individual hot aisles to liquid without rebuilding the entire data center from scratch.

Final Takeaway

Implementing liquid cooling is no longer an experimental, niche option—it has become a necessity. Today's leading vendors offer highly mature, field-tested solutions across direct-to-chip, rack-level, and immersion architectures. Whether you are upgrading an edge deployment or architecting a massive hyperscale AI facility, these eight companies offer a balanced mix of engineering innovation and turnkey capability. To get started, initiate a thorough thermal mapping study, prioritize pilot racks, and choose a vendor partner that directly aligns with your deployment scale and sustainability objectives.

FAQ

1. What services and infrastructure do liquid cooling data center companies provide?

Liquid cooling companies engineer and deliver the specialized infrastructure required to manage high-density server heat. This includes manufacturing direct-to-chip cold plates, immersion tanks, manifolds, and Coolant Distribution Units (CDUs). Many vendors also offer thermal design consulting, deployment support, and ongoing system maintenance to optimize infrastructure for AI, HPC, and cloud workloads.

2. Why is the adoption of liquid cooling data center solutions accelerating?

The rapid rise of AI, GPU clusters, and high-frequency CPUs generates heat levels that traditional air cooling cannot physically dissipate. Liquid cooling solutions are surging in popularity because they handle these extreme thermal loads effortlessly, substantially lowering operational electricity costs, shrinking environmental footprints, and allowing servers to run at peak performance without thermal throttling.

3. What is considered the most efficient method for data center cooling?

Liquid cooling—specifically direct-to-chip (cold plate) and immersion cooling—is widely recognized as the most efficient thermal management method available today. Because liquids have a significantly higher thermal capacity than air, these modern cooling designs capture and remove heat much faster, eliminate airflow restrictions, and enable facilities to achieve exceptionally low Power Usage Effectiveness (PUE) ratios.

Recommended Products：

20FT Liquid-Cooled Containerized Data Center | Modular/Prefabricated Containerized Data Center

In-Rack Liquid-to-Liquid CDU | Nvidia GB200/GB300 & H100/H200 Server Racks

48U Liquid Cooled Server Rack | Air-to-liquid | Liquid Cooling Data Center

GPU Cold Plate For NVIDIA H100 / H200 | GB300/GB200 | AMD Instinct Series