Woodruff Construction was founded in 1956 by Leonard Woodruff and Jack Evans as Woodruff Evans Construction and incorporated in 1959. It is now owned and operated by Leonard's sons Bill and Don Woodruff since the late 1980s and expanded to offices in Fort Dodge, Ames, Iowa City, and Waterloo, specializing in design-build projects. Several of its owners have received the Design-Build Institute of America designation.