Donaldson manufactures filtration systems designed to eliminate contaminants from air liquids, with the bulk of the company's applications addressing intake/exhaust systems and liquid-filtration systems. About 56% of DCI's business is engine product-based, 44% industrial products-based.
That's hardly a glamorous, famed-filled business but Donaldson doesn't mind: it's operations span the U.S., Europe, Asia and other regions, with 30 strategically-located facilities. Donaldson's shares gained 18 cents to end at $41.89 in Tuesday afternoon trading.



