Ecolab Inc. (NYSE:ECL) sells water treatment, cleaning, and pest-control programs that keep restaurants, hotels, hospitals, and factories running safely. The trick is that it installs its chemistry and dispensing equipment on site, making it difficult for customers to switch to a new vendor. At about $277 a share and $77 billion in value, it trades near 36 times earnings, a steep price for a company growing sales around 5%. At the current price, the market expects consistent price increases and expanding data center cooling operations to support double-digit earnings growth.
The Embedded-Moat Math
Ecolab doesn’t stop at selling chemicals. The company installs the dispensers and services the equipment inside a customer’s kitchen or plant. Since customers rarely pull out of this service just to save a little, Ecolab gains pricing power, which is used each year to lift prices. Another industrial company with embedded on-site supply is Linde. See whether its moat is widening or narrowing.
Growth lately has run about 5%, and almost all of it is pricing, with operating margins climbing toward 20% even as input costs rise. And now for the newer twist. Ecolab’s High-Tech unit, which treats the water that cools data centers, grew nearly 30% last quarter, and the company has also recently acquired CoolIT, a leader in liquid cooling for AI servers. So, at a 36x multiple, the investors are underwriting durable above-inflation pricing on the core, plus this data-center water-and-cooling leg growing fast enough to justify the premium.
The Bull Case
The bullish thesis sees the embedded-service model as a genuine moat, with switching costs that let Ecolab out-price inflation almost every year. This shows up in widening margins. Two long tailwinds sit behind it. Primarily, water is getting scarcer and costlier to manage, and hygiene standards keep rising, so demand for Ecolab’s programs grows structurally. And second, the data-center push, including the CoolIT deal, ties a steady industrial name to the fast-growing AI buildout. Ecolab also compounds returns on capital and has raised its dividend for decades. Curious which companies compound capital even better? See the 10 Best Return On Equity (Roe) Stocks To Buy.
The Bear Case
The bears say 36 times is a lot for roughly mid-single-digit growth, and the price assumes flawless execution. Ecolab’s business is mostly built on busy customers. Therefore, an unlikely downturn in industry or hospitality would slow volumes, which are already the weaker half of its growth. Raw-material, energy, and currency swings can squeeze margins between price resets. And while the data-center angle is exciting, it is still small next to the whole company, so it may not move the value upward as fast as the multiple implies.
Ecolab Inc. ranked second in our list of the 10 Best Water Infrastructure Stocks to Buy as AI Data Centers Strain Resources. To see which stock outranked it, click HERE.
The Bottom Line
The central debate balances Ecolab’s customer retention and expanding liquid cooling footprint against an elevated valuation multiple near 36 times earnings. For a growth investor, the appeal comes from the data-center leg and structural water demand. For a value investor, 36 times is hard to call cheap for mid-single-digit growth. The bears would consider it reasonable only if the moat and the new engine compound for years. An income investor gets only a small 1.05% dividend, but one that grows over time. In short, the moat looks durable, and the AI angle is real, yet the premium already assumes a lot goes right.
Market Sentiment
According to Insider Monkey’s database, 62 hedge funds held Ecolab Inc. at the end of the second quarter of 2026, up from 60 the quarter before. The value of those combined holdings also rose over the period, from about $3.4 billion to roughly $4.1 billion, reflecting modest growth in institutional interest.
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This article is originally published at Insider Monkey.
