Cliff has specialized in aviation and terminal planning since joining Alliiance in 1987. He has led a wide range of aviation projects at Minneapolis-St. Paul International Airport and manages the firm’s Minneapolis airport office. He has served in community service roles for the City of Eden Prairie and the Twin Cities Airport Lions Club.

Cliff grew up in the plains of South Dakota and is a graduate of Iowa State University. In his spare time, he is comfortable in the air, on land, and at sea, enjoying downhill skiing, snowmobiling, and boating.