Aerojet Rocketdyne Holdings, Inc. engages in provision of solutions in the field of aerospace and defense, as well as in the field of real estate. It operates through the following business segments: Aerospace and Defense, and Real Estate. The Aerospace and Defense segment operates through Aerojet Rocketdyne, Inc. in developing and manufacturing aerospace and defense products and systems for the United States government, the National Aeronautics and Space Administration, major aerospace and defense prime contractors as well as portions of the commercial sector. The Real Estate segment includes Easton Development Company, LLC in re-zoning, entitlement, sale, and leasing of excess real estate assets. The company was founded on September 29, 1915 and is headquartered in El Segundo, CA.