Ecolab sells cleaning, sanitizing, water treatment, and related services to commercial and industrial customers in more than 170 countries. Its two core product lines are cleaning and sanitizing — sold to restaurants, hotels, food processors, hospitals, and pharmaceutical manufacturers — and water treatment, sold to large industrial customers in food & beverage, power generation, petrochemicals, and data centers. A defining feature of Ecolab's model is its direct salesforce of over 25,000 field sales and service employees who visit customer sites, apply products, and document measurable savings in water, energy, and operating costs. This consultative "chemical service" model supports value-based pricing and customer retention rates in the low-to-mid 90% range. Ecolab also installs proprietary dispensing equipment and digital monitoring hardware at customer sites, creating high switching costs and recurring chemistry demand. Ecolab organizes into four segments: Global Water (roughly half of sales), Global Institutional & Specialty, Global Pest Elimination, and Global Life Sciences. Growth priorities include "One Ecolab," a cross-sell initiative targeting the full portfolio across top accounts; Global High-Tech, serving semiconductor fabs and data centers with water treatment and ultrapure water recycling; and Ecolab Digital, which monetizes its installed base of 100,000+ connected devices through subscriptions and hardware leases, with digital sales reaching nearly $400M in FY25.