Clearfield, Inc. engages in the design, manufacture, and distribution of fiber protection. It operates through the Clearfield and Nestor Cable segment. The Clearfield segment involves the design, manufacture, and selling of fiber management, protection, and delivery solutions. The Nestor Cables segment includes designs, manufacture, and selling fiber management, protection, and delivery solutions. The company was founded in 1979 and is headquartered in Brooklyn Park, MN.