US Water Treatment Company Ventures into AI Data Center Cooling, Board Members Purchase Millions in Company Stock

Ecolab Inc. (NYSE: ECL) on April 10 signed an unsecured term credit agreement totaling $4.75 billion to fund its acquisition of Frizio Holdings and to repay related indebtedness. Then, on May 4 and 13, Board Director David McLennan made additional open-market purchases of Ecolab shares, investing roughly $450,000 of his own funds.

On March 20, Ecolab agreed to acquire CoolIT Systems—a global leader in advanced liquid-cooling technology for next-generation AI data centers—for approximately $4.75 billion, marking a major expansion into the data center cooling market. In its late-April first-quarter results, the company reported double-digit net-income growth and reaffirmed its 2026 adjusted EPS guidance of $8.43 to $8.63, underscoring a solid growth outlook.

Headquartered in the United States, Ecolab is a global provider of water treatment, hygiene and infection-prevention solutions serving industries from food and beverage manufacturing, foodservice and hospitality to energy and semiconductors worldwide. Recently, it has been broadening its portfolio into high-value water-treatment segments—such as rapidly growing data-center cooling and ultrapure water solutions for the electronics industry.