Vertiv's acquisition of Italian cooling firm ThermoKey has closed.

The data center power and cooling giant announced its acquisition plans back in March.

The acquisition expands Vertiv's thermal management portfolio and manufacturing capabilities in Europe, the Middle East, and Africa (EMEA).

Vertiv said that it already uses ThermoKey’s technologies in select thermal solutions. Such technologies include heat-exchange solutions, dry coolers, and compatibility with low-GWP and natural refrigerants.

"Customers are scaling AI infrastructure at an unprecedented pace, and thermal performance is now a critical enabler of capacity and efficiency," said Giordano Albertazzi, CEO at Vertiv.

"With ThermoKey, we are strengthening our capabilities to deliver differentiated, integrated, high-performance heat rejection solutions that help customers deploy faster, operate more efficiently, and scale with confidence."

Giuseppe Visentini, CEO of ThermoKey, will continue to lead the business.

"Joining Vertiv means bringing our heat-exchange expertise into a complete, integrated thermal chain that serves high-density data centers," he said.

"We share Vertiv's engineering rigor and customer focus. ThermoKey joins Vertiv on a path of sustained growth, and from Italy, we will continue to build on that momentum and contribute to the strength of the group across EMEA and around the world."