Founded in 1984, Cable USAs headquarters and manufacturing plant are located in Naples, Florida. Cable USA joined the Marmon/Berkshire Hathaway Group of Companies in 1997. The Marmon/Berkshire Hathaway Group of Co......Founded in 1984, Cable USAs headquarters and manufacturing plant are located in Naples, Florida. Cable USA joined the Marmon/Berkshire Hathaway Group of Companies in 1997. The Marmon/Berkshire Hathaway Group of Companies is an international association of more than 100 autonomous companies with collective sales in excess of $6.5 billion. At Cable USA our team is committed to ensuring quality customer service and products through our ISO 9001 certification over 150 years combined line cable experience. Will continue to provide you with the industrys highest valued high temperature and specialty wire and cable products.