Donaldson Company, Inc. is a vertically integrated filtration company engaged in the production and marketing of products used as a means to improve performance efficiency and air quality. Its products are used by various industry sectors ranging from commercial/industrial , aerospace to chemical producers requiring membranes of various fiber sizes. The company also plays a key role in the alternative energy and pharmaceutical industries by providing self cleaning, temperature balancing air systems in rotating devices involved in energy production, and filters used to prevent contamination of chemicals in research facilities. As a multinational company it operates in Belgium, Mexico, China, UK, Thailand, USA, Japan, Italy, Germany and France. In the 2010 fiscal year 45.3% of operating income came from business in the Asia, Pacific region , 24.6% from Europe and 19.7% from the US. It is also an aftermarket parts supplier. read more