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Nalco, an Ecolab Company

Ecolab cleans up by cleaning up. The company offers cleaning, sanitation, pest-elimination, and maintenance products and services to hospitality, institutional, and industrial customers. Its largest unit, Cleaning and Sanitizing, accounts for nearly half of its sales and serves hotels, schools, and commercial and institutional laundries. Its Kay unit provides cleaning supplies to quick-service restaurants. Other units focus on products for textile care, water care, health care, food and beverage processing, and pest control. Newly acquired unit Nalco makes chemicals used in water treatment for industrial processes. In 2012 Ecolab agreed to buy Houston-based Champion Technologies for $2.2 billion.