Cerrowire has a rich history dating back to the 1920s when it was established as Circle Flexible Conduit Co., Inc. by Hyman Cohn. Initially focused on manufacturing armored cable and flexible steel conduit, the company expanded its offerings to include insulated wire by 1929. Over the decades, Cerrowire underwent several name changes and ownership transitions, ultimately becoming part of The Marmon Group in 1976. In 2008, Berkshire Hathaway acquired a majority interest in Marmon, solidifying Cerrowire's position as a leading wire supplier.

Today, Cerrowire operates manufacturing facilities across Alabama, Georgia, Indiana, and Utah, focusing on innovative solutions for residential, commercial, and industrial applications. The company offers a variety of products including MC cables, aluminum wires, building wires, portable cords, and specialty wires. Innovations such as CerroMax™ with color coding for easy identification and the ReelRover wire handling device exemplify Cerrowire's commitment to improving efficiency in electrical installations. Celebrating its centennial in 2020, Cerrowire continues to prioritize quality products and exceptional customer service while pushing the boundaries of electrical solutions.