The company began in a Minnesota metal shop with Frank, his father, W.H.L., and his brother Bob. The three hammered out Frank’s invention. One hundred years later, Donaldson holds over 1,800 active U.S. and international patents, and employees in 44 countries support customers around the world.
Donaldson provides customers with solutions that improve peoples’ lives, enhance equipment performance and protect our environment. Our products are found in a wide variety of industries, including aerospace, agriculture, construction, food and beverage, manufacturing and transportation.
For over two decades, Donaldson has been a pioneer in fine fiber technology, manufacturing and testing filter elements using fibers less than a micron in width. In the tightly regulated transportation market, our R&D efforts have produced smaller, lighter and more efficient filters and filtration systems. And our technologies help protect critical applications from the damaging effects of particles, gases and humidity in everything from computers to hearing aids. As equipment and technology advances, Donaldson continues to develop innovative solutions to anticipate and exceed evolving requirements.