About Us

At the beginning of the 20th century a small pattern shop known as Collis Pattern Works was founded in Dubuque, Iowa. As sales grew and the expansion began, Collis added more equipment and more employees. The company was on the move. It occupied three additional locations in Dubuque before Clinton, Iowa was chosen as the new site in 1912. In this location the plant grew up to become one of the area's leading industries. Since the founding, the high quality products manufactured are the result of experienced personnel and excellent facilities. The goal of this company known today as Collis Toolholder Corporation, remains the same: to produce high quality products utilizing knowledgeable professionals in order to continue to offer the latest in technology in this new millennium.