Ecolab Inc. provides water, hygiene, and energy technologies and services for customers worldwide. The company operates through Global Industrial, Global Institutional, and Global Energy segments. The Global Industrial segment provides water treatment and process applications, and cleaning and sanitizing solutions primarily to large industrial customers within the manufacturing, food and beverage processing, chemical, mining and primary metals, power generation, pulp and paper, and commercial laundry industries. The Global Institutional segment offers specialized cleaning and sanitizing products to the foodservice, hospitality, lodging, healthcare, government and education, and retail industries. The Global Energy segment provides the process chemicals and water treatment needs of the petroleum and petrochemical industries in upstream and downstream applications. The company also offers pest elimination services to detect, eliminate, and prevent pests, such as rodents and insects, in restaurants, food and beverage processors, educational and healthcare facilities, hotels, quick service restaurant and grocery operations, and other institutional and commercial customers; and equipment repair, maintenance, and preventive maintenance services for the commercial food service industry. Ecolab Inc. sells its products through field sales personnel, corporate account personnel, distributors, and dealers. Ecolab Inc. was founded in 1923 and is headquartered in St. Paul, Minnesota.