Keller America is a world leading manufacturer of level and pressure measurement instrumentation. Their state-of-the-art facility is located in Newport News, Virginia and provides manufacturing and support for the North American market. Keller America is a wholly owned subsidiary of Keller AG fur Druckmesstechnik in Winterthur, Switzerland. Founded by Hans W. Keller in 1974, Keller continued to provide innovative pressure measurement technologies to applications around the world.