Cerrowire has a rich history that spans over 100 years. It was established in the 1920s as Circle Flexible Conduit Co., Inc. by Hyman Cohn, specializing in the manufacture and sale of armored cable and flexible steel conduit. Over the years, the company expanded its product line to include insulated wire and various types of copper wire and cable. In 1955, Cerro de Pasco Corp. acquired the company, leading to the formation of Cerro Wire & Cable Company.

In 1976, Cerro Wire & Cable became a member of The Marmon Group, a global industrial organization. The corporate headquarters were moved to Hartselle, Alabama in 1983, with additional manufacturing facilities established in Utah, Indiana, and Georgia. In 2008, Berkshire Hathaway Inc., acquired majority interest in the Marmon Group of companies, solidifying Cerrowire's position in the building wire industry.

Today, Cerrowire is known as Cerro Wire LLC and continues to be a leader in the industry. They celebrate their centennial anniversary in 2020 and remain committed to delivering quality products, strong service, and innovative solutions to their customers.