Harris Corporation
Headquartered in Melbourne, Florida, the company has approximately $7 billion of annual revenue. It is the largest private-sector employer in Brevard County, Florida (approximately 6,000). The company was the parent of Intersil (Harris Semiconductor). Most of the wireless start-ups in South Brevard County were founded and are staffed by former Harris Corporation engineers and technicians. The company's Digital Telephone Systems (DTS) division was sold to Teltronics.
ExxonMobil
ExxonMobil's headquarters are located in Irving, Texas. As of May 2015, the company was nearing completion of its new campus located in a northern Houston suburb of Spring, at the intersection of Interstate 45, the Hardy Toll Road, and the Grand Parkway northern extension. It is an elaborate corporate campus, including twenty office buildings totaling , a wellness center, laboratory, and three parking garages. It is designed to house nearly 10,000 employees with an additional 1,500 employees located in a satellite campus in Hughes Landing in The Woodlands, Texas. In October 2010, the company stated that it would not move its headquarters to Greater Houston.