Donaldson Co., Inc. engages in the manufacture of filtration systems and replacement parts. It operates through the following segments: Mobile Solutions, Industrial Solutions, and Life Sciences. The Mobile Solutions segment is involved deals with replacement filters for both air and liquid filtration applications and filtration housings for new equipment production and systems related to exhaust and emissions. The Industrial Solutions segment focuses on industrial air filtration, industrial gases, industrial hydraulics, power generation and aerospace, and defense business units. The Life Sciences segment consists of bioprocessing, food and beverage, medical device, vehicle electrification, microelectronics and disk drive business units. The company was founded by Frank Donaldson Sr. in 1915 and is headquartered in Minneapolis, MN.