Marmon Utility LLC, an operating unit of The Marmon Group - part of Berkshire Hathaway Inc., is a manufacturer of medium and high voltage underground cable from 5KV through 138kV, aerial cable systems, and molded polyethylene insulators. Through systems design, engineered product quality, superior customer service and engineering support, Marmon Utility delivers robust products that enable customers to achieve the outstanding system reliability in the most challenging distribution environments. Marmon Utility LLC has two divisions; Hendrix Wire and Cable founded in 1951 with facilities in Milford, NH and Amherst, NH and Kerite based in Seymour, CT where it was founded in 1854.