United Technology West Palm Beach, Florida

A major facility for United Technologies (UTC) of Hartford, Connecticut, dominated by the company's Pratt & Whitney division, an aircraft and rocket engine company. This 7,000-acre installation is the company's principal military and space engine design, manufacture, test and repair facility, and has around 50 engine test stands, west of the William Gwinn Airport, the site's landing strip. Major down-sizing in 1999 led to the closure of much of the military aircraft engine component of this facility, then known as the Liquid Space Propulsion Division. In 2005, UTC purchased Boeing Rocketdyne Propulsion & Power, which it then merged with Pratt & Whitney Space Propulsion to create Pratt & Whitney Rocketdyne. In 2012, UTC sold  Pratt and Whitney Rocketdyne to GenCorp, who proceeded to merge it with Aerojet, creating Aerojet Rocketdyne.