Donaldson Company, Inc. manufactures and sells filtration systems and replacement parts worldwide.

The company operates through three segments: Mobile Solutions, Industrial Solutions, and Life Sciences.

Its Mobile Solutions segment provides replacement filters for air and liquid filtration applications, such as air filtration systems; liquid filtration systems for fuel, lube, and hydraulic applications; exhaust and emissions systems and sensors; indicators; and monitoring systems.

This segment sells its products to original equipment manufacturers (OEMs) in the construction, mining, agriculture, aerospace, defense, and transportation markets; and to independent distributors, and OEM dealer networks.

The company's Industrial Solutions segment offers dust, fume, and mist collectors; compressed air and industrial gasses purification systems; and hydraulic and lubricated rotating equipment applications, as well as gas and liquid filtration for industrial processes.

This segment sells its products to various distributors, OEMs, and end-users. Its Life Sciences segment provides micro-environment gas and liquid filtration for food, beverage, and industrial processes; bioprocessing equipment, that includes bioreactors and fermenters; and bioprocessing consumables, such as chromatography devices, reagents and filters, and polytetrafluoroethylene membrane-based products, as well as specialized air and gas filtration systems for applications, including hard disk drives, semi-conductor manufacturing and sensors, battery systems, and powertrain components to OEMs and various end-users.

The company was founded in 1915 and is headquartered in Bloomington, Minnesota.