Lockheed file.
Back when I worked for Lockheed, in the late 70's, we had divisions in aviation, aerospace (missiles and space), electronics and shipbuilding. I worked in Saudi Arabia managing the media center of a technical school where we were teaching Air Traffic Control.
Lockheed Shipbuilding, was a shipyard in Seattle, Washington on Harbor Island at the mouth of the Duwamish River. Founded in 1898 as the Puget Sound Bridge and Dredging Company, the company that built Harbor Island, it was purchased by Lockheed in 1959. The shipyard was permanently closed in 1987.