Maintenance and Modifications
MRO Profile: Wisconsin Aviation: 45 Years and Counting
The company is one of the largest aviation service providers in the state
Wisconsin Aviation maintenance hangar at KMSN
At its Dane County Regional Airport location, Wisconsin Aviation sees the full spectrum of aviation, from commercial jet lines to private business jets to light general aviation piston aircraft.

Wisconsin Aviation is celebrating its 45th anniversary this year. The company, which now operates MRO/FBOs at three airports in the Badger State, made its debut at Watertown Municipal Airport (KRYV). “I started this in 1981, when interest rates were 21%,” said company president and CEO Jeff Baum. “The economy had fallen off the cliff—of course, we didn’t know that because we didn’t have CNN, let alone the internet—and two weeks later, President Reagan fired all the air traffic controllers. So, it was a great time to start an FBO!”

Despite that rocky beginning, Baum grew the business, which also provides aircraft management, charter, and flight instruction. The company became the lone service provider at Dodge County Airport in Juneau (KUNU) two years later, and added a facility at Dane County Regional Airport-Truax Field (KMSN)—serving the state capital of Madison—in 1994.