Vertiv adds liquid-cooling expertise with STL

Vertiv adds liquid-cooling expertise with STL

Vertiv has added liquid-cooling engineering capability through the STL acquisition. The deal strengthens its work across cold plates, server-side liquid cooling, and high-density thermal validation as AI and HPC systems push infrastructure closer to the limits of air cooling.


Vertiv has acquired Strategic Thermal Labs LLC, adding specialist liquid-cooling engineering capability as data centre operators face higher thermal loads from AI and high-performance computing systems.

The acquisition brings expertise in cold-plate design, server-side liquid cooling, and high-density thermal validation. Vertiv said the move extends its thermal-chain strategy by strengthening engineering at the interface between liquid-cooled servers and the surrounding power, cooling, control, and service infrastructure.

In high-density environments, cooling performance is shaped by more than the cold plate itself. Flow rates, pressure balance, controls behaviour, service access, commissioning practice, and long-term fluid management all affect reliability and lifecycle performance. Poor integration between the server and facility infrastructure can turn a thermal design gain into an operational constraint.

Strategic Thermal Labs’ capabilities are expected to support Vertiv’s work in simulating and emulating real high-density compute conditions. The added capability should help the company test how thermal systems interact with power infrastructure before deployment, rather than treating cooling and electrical design as separate engineering tracks.

“As AI and high-performance computing push power densities to unprecedented levels, understanding and solving heat challenges at the chip level becomes critical to system design, performance and reliability,” said Scott Armul, chief product and technology officer at Vertiv. “STL brings deep expertise and proven capability in addressing some of the industry’s most demanding chip-level density and thermal problems, strengthening Vertiv’s ability to emulate and validate system-level solutions and enabling customers to improve performance and lifecycle outcomes in liquid-cooled environments.”

Liquid cooling is moving from an advanced option into a core design consideration for AI factories, accelerated compute clusters, and dense enterprise deployments. The next stage of adoption depends heavily on system integration, particularly where operators need predictable serviceability, power efficiency, fluid management, and long-term reliability across mixed compute environments.

Vertiv said the acquisition does not alter its open ecosystem approach. The company will continue to support interoperable, server- and silicon-agnostic infrastructure, preserving flexibility for operators managing different processor, accelerator, and rack architectures.

The addition of Strategic Thermal Labs builds on Vertiv’s wider work across power, thermal management, controls, and lifecycle services. Dense AI and HPC environments increasingly require thermal validation at system level before uptime, serviceability, or energy performance become operational problems.

More information on Vertiv’s power and thermal infrastructure portfolio is available at Vertiv.com.


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    Vertiv has added liquid-cooling engineering capability through the STL acquisition. The deal strengthens its work across cold plates, server-side liquid cooling, and high-density thermal validation as AI and HPC systems push infrastructure closer to the limits of air cooling.