Cerrowire, established in the 1920s, has a rich history of manufacturing copper and aluminum wire in the United States. Originally founded as Circle Flexible Conduit Co., Inc., the company expanded its offerings to include insulated wire and various types of cables by 1929. Over the decades, it underwent several name changes and ownership transitions, ultimately becoming part of Berkshire Hathaway through Marmon Group in 2008. Cerrowire has since relocated its headquarters to Hartselle, Alabama, and operates multiple facilities across the country.

Today, Cerrowire is recognized for its commitment to innovation and quality in electrical products. Their extensive product line includes MC cables, aluminum wires, building wires, portable cords, and specialty wires designed for residential, commercial, and industrial use. Cerrowire leads the market with advanced features such as unique exterior coding systems for easy identification during installations and innovative solutions like CerroMax™ and CerroPack for improved handling. The company prides itself on customer service and timely delivery from its state-of-the-art manufacturing plants while continuing to celebrate over a century of powering innovation in the wiring industry.