Ecolab Inc. is making a direct move into AI infrastructure, agreeing to acquire cooling technology firm CoolIT Systems in an all-cash transaction valued at $4.75 billion. This acquisition could expand its business reach beyond traditional water treatment and hygiene services. The company is purchasing CoolIT from funds managed by KKR & Co LP, with the deal expected to close in the third quarter of 2026. In pre-market trading in New York, Ecolab's stock dipped approximately 1%, indicating investors are assessing the scale of the transaction and its positioning within a rapidly evolving market.

This move comes as data center construction continues to accelerate, driven by growing demand from artificial intelligence workloads. As computing density increases, cooling has become a central bottleneck, prompting technology companies to explore more advanced heat dissipation solutions while also addressing concerns about water consumption. CoolIT develops cooling systems specifically designed for high-performance computing environments, potentially positioning Ecolab in a sector that is becoming increasingly critical as AI infrastructure scales.

For KKR & Co LP, this transaction reflects the sharp appreciation in valuations for AI-related assets. The firm had agreed to acquire CoolIT for $270 million in May 2023, shortly after the launch of ChatGPT ignited the generative AI investment cycle. Since then, major technology companies have committed substantial capital to expanding data center capacity, and assets associated with this expansion are attracting growing attention. Ecolab's acquisition signals that cooling technology is becoming increasingly vital within the broader AI ecosystem as demand continues to rise.