The global data center liquid cooling market is entering a decisive growth phase as artificial intelligence workloads reshape modern computing infrastructure. According to a newly released advanced research report from Dell’Oro Group, manufacturer revenues from liquid cooling technologies are projected to approach $7 billion by 2029, reflecting the rapid transition away from traditional air-based cooling systems.
This surge is being driven by escalating thermal demands inside data centers, particularly those supporting high-density AI and accelerated computing environments. As chip power consumption climbs and rack densities increase, air cooling is reaching its physical and economic limits. Consequently, liquid cooling has evolved from a niche efficiency upgrade into a foundational requirement for next-generation data center design.
Why Liquid Cooling Is Becoming Essential
AI accelerators, including advanced GPUs and custom ASICs, are pushing thermal design power (TDP) to unprecedented levels. By 2029, the most advanced GPUs are expected to exceed 4,000 watts per chip, a threshold that makes conventional air cooling impractical at scale. Liquid cooling, with its superior heat transfer properties, provides a direct and efficient way to manage these extreme thermal loads.
Alex Cordovil, Research Director at Dell’Oro Group, describes this shift as a structural turning point. Liquid cooling, once viewed as optional, is now a core enabler of large-scale AI deployments. Experience gained by hyperscalers, combined with accelerating vendor investment, has solidified single-phase direct liquid cooling as the dominant architecture for AI clusters.
Hyperscalers and Colocation Fuel Market Growth
Hyperscale cloud providers remain the primary drivers of liquid cooling adoption, accounting for a significant share of market revenue. These operators are building massive AI-focused data centers where performance, energy efficiency, and reliability are critical. Liquid cooling enables higher rack densities while reducing overall power usage effectiveness, making it an attractive solution for hyperscale environments.
Beyond hyperscalers, colocation data centers are also contributing strongly to market expansion. Many new colocation facilities are now purpose-built to support AI workloads, integrating liquid cooling from the design stage. This trend is helping liquid cooling move deeper into the mainstream of the data center industry.
Market Outlook Through the Decade
The Dell’Oro analysis forecasts that the liquid cooling market will nearly double in 2025, reaching close to $3 billion in annual sales, before continuing its upward trajectory toward the $7 billion mark by 2029. This sustained growth reflects both rising deployment volumes and increasing system complexity as cooling solutions adapt to higher heat loads.
Single-phase direct liquid cooling is expected to remain the predominant approach for most installations through the end of the decade. Ongoing improvements in cold plate design, coolant distribution units, and system architectures are extending the practical limits of single-phase solutions, even as accelerator power continues to rise.
Emerging Cooling Architectures
While single-phase systems dominate today, alternative cooling strategies are gaining attention as chip-level heat flux intensifies. Two-phase direct liquid cooling is projected to see gradual adoption, particularly as TDPs exceed the feasible boundaries of single-phase designs. However, deployments are likely to remain concentrated in pilot projects and early large-scale implementations for several years.
Immersion cooling, which involves submerging hardware directly in dielectric fluids, is also being adopted selectively. Its use is typically limited to scenarios where specific operational or performance benefits justify the architectural trade-offs, such as specialized high-performance computing or edge deployments with extreme density requirements.
Competitive Landscape and Key Players
The competitive environment in the liquid cooling market is evolving rapidly. Vertiv currently dominates the sector, leveraging its scale and deep integration with global data center operators. Established players such as CoolIT, nVent, and Boyd continue to hold strong market positions, supported by proven technologies and long-standing customer relationships.
At the same time, newer entrants are reshaping competitive dynamics. Aaon has demonstrated particularly rapid growth, highlighting how strong hyperscaler partnerships and the ability to deliver highly customized solutions can translate quickly into increased market share. This competitive intensity is further amplified by rising merger-and-acquisition activity and expanding vendor capabilities across the ecosystem.
What This Means for the Data Center Industry
The projected rise of the data center liquid cooling market signals a fundamental transformation in how digital infrastructure is built and operated. As AI workloads become central to cloud services, enterprise computing, and emerging technologies, thermal management is no longer a secondary consideration. Instead, it is a strategic factor influencing performance, scalability, and long-term operating costs.
Liquid cooling’s transition into the core of data center architecture underscores the broader shift toward AI-first infrastructure. Vendors, operators, and investors alike are aligning around solutions that can support the next generation of compute-intensive applications, making liquid cooling one of the most critical technologies shaping the future of data centers.
