Ecolab Announces \$4.75 Billion Acquisition of CoolIT Systems, Major Expansion in Data Center Cooling Market

Key Points for Investors

• Acquisition of CoolIT Systems: Ecolab has entered into a definitive agreement to acquire CoolIT Systems, a global leader in advanced liquid cooling technology for next-generation AI data centers, in a cash transaction valued at approximately \$4.75 billion.
• Accelerated Sales Growth: The acquisition is expected to boost Ecolab’s Global Water organic sales growth rate by 2% and the overall company’s organic sales growth rate by 1% beginning one year after closing.
• Market Expansion: This deal will double Ecolab’s Global High-Tech market opportunity from \$5 billion to \$10 billion, driven by strong double-digit market growth rates.
• Strategic Positioning: The acquisition positions Ecolab as a comprehensive cooling solutions provider for the rapidly growing data center market, especially as AI workloads require more advanced liquid cooling solutions.
• Financial Impact: The transaction is expected to be accretive to adjusted diluted earnings per share (EPS) by 2028 (excluding non-cash amortization costs) with returns significantly above Ecolab’s weighted average cost of capital.
• Deal Financing and Leverage: The acquisition will be financed with new transaction debt, with pro forma net debt to adjusted EBITDA expected to be approximately 3x at closing, returning to 2x leverage by the end of the second year post-closing.
• Regulatory Approvals: The acquisition is expected to close in Q3 2026, subject to regulatory approvals and customary closing conditions.
• CoolIT’s Contribution: CoolIT is anticipated to generate around \$550 million in sales over the next 12 months, with high margins and rapid growth. Their technology is used by major hyperscale and colocation operators, including custom solutions for leading AI chip developers like NVIDIA and AMD.
• Potential Risks: The company has outlined a number of risks, including regulatory approval uncertainties, integration risks, potential for unexpected costs or delays, and possible impacts on credit ratings or business operations.

Detailed Analysis

Ecolab (NYSE: ECL), a global leader in water, hygiene, and infection prevention solutions, has taken a significant step to expand its role in the high-growth data center market by acquiring CoolIT Systems. The \$4.75 billion deal is expected to transform Ecolab’s portfolio, positioning the company as a key player in the rapidly evolving AI and high-performance computing industry.

CoolIT Systems specializes in advanced liquid cooling solutions, including coolant distribution units (CDUs), cold plates, direct-to-chip technologies, liquid loops, and rack manifolds. With over 25 years of experience, CoolIT’s technology is critical for enabling greater rack density, efficiency, and reliability in data centers, especially as the sector shifts from traditional air cooling to liquid cooling to handle the immense demands of AI workloads.

The acquisition leverages substantial cross-selling opportunities and complements Ecolab’s existing relationships with over 1,000 data centers globally. CoolIT brings advanced engineering and validation capabilities, as well as deep connections with hyperscale and colocation customers. The company’s R&D and manufacturing footprint spans Canada, China, and Vietnam, with support in more than 80 countries.

Ecolab’s leadership highlighted the strategic importance of the transaction. Christophe Beck, Chairman and CEO, stated that the deal will enable Ecolab to offer a unique, end-to-end cooling-as-a-service platform, integrating CoolIT’s engineered cooling technologies with Ecolab’s expertise in water, chemistry, fluid management, and digital monitoring. This positions Ecolab as a critical partner for the entire AI ecosystem—from semiconductor fabs and power plants to the data centers using the chips.

The combined business is expected to deliver significant financial benefits:

• Accelerated organic sales growth for both Global Water and the overall company.
• The transaction is anticipated to be accretive to adjusted diluted EPS by 2028, with further gains expected thereafter.
• Returns are forecast to be well above the company’s weighted average cost of capital.

Ecolab plans to fund the acquisition with new debt, with pro forma net debt to adjusted EBITDA projected at approximately 3x immediately after closing, returning to 2x within two years. The company’s core financial guidance remains robust, with Q1 2026 adjusted diluted EPS expected in the range of \$1.69 to \$1.71 (up 13-14% year-over-year), and full-year 2026 EPS forecast (excluding the acquisition impact) of \$8.43 to \$8.63, or a 12-15% increase versus 2025.

This acquisition is a major strategic move that is likely to be price-sensitive, given its scale, the high-growth nature of the data center cooling market, and the expected accretion to sales and earnings. The transaction significantly increases Ecolab’s exposure to the AI and high-performance computing sectors at a time of rapid industry expansion and technological change.

Potential Risks and Forward-Looking Statements

Investors should note that the transaction is subject to regulatory approval and other customary closing conditions. There are risks related to integration, potential delays, cost overruns, impacts on credit ratings, and possible business disruptions. Management has provided cautionary statements regarding forward-looking projections, emphasizing that actual results could differ materially due to various known and unknown risks.

Additional Information

• Ecolab will host a live webcast to discuss the acquisition on Monday, March 23, 2026, at 8 a.m. Eastern Time. Details and related presentation slides will be available on the company’s investor website.
• Citi acted as exclusive financial advisor and Covington & Burling LLP as legal counsel to Ecolab for this transaction.

About Ecolab and CoolIT Systems

Ecolab serves customers in more than 170 countries across 40 industries, with \$16 billion in annual sales and 48,000 employees. The company aims to help protect two billion people from infections and provide enough drinking water for one billion people by 2030.

CoolIT Systems is a leading provider of scalable liquid cooling solutions for high-performance computing, serving customers globally and collaborating with top semiconductor and cloud providers.

Disclaimer: This article is for informational purposes only. It does not constitute investment advice or a recommendation to buy or sell any securities. Forward-looking statements are subject to risks, uncertainties, and assumptions that could cause actual results to differ materially from those anticipated. Please refer to Ecolab’s public SEC filings for a full discussion of risks and uncertainties related to this acquisition and the company’s operations.

View ECOLAB INC. Historical chart here