NCH Corporation is a global provider of industrial and commercial maintenance products and services. The company was founded in 1919 and is headquartered in Irving, Texas. NCH's products include lubricants, cleaners, and water treatment chemicals, as well as equipment and services for maintaining HVAC systems, wastewater treatment systems, and other industrial equipment. The company serves a wide range of industries, including manufacturing, food processing, and transportation. NCH operates in over 50 countries and has over 8,500 employees.