Rocketdyne
The Rocketdyne Division was founded by North American Aviation (NAA) in 1955, and was later part of Rockwell International (1967-1996) and Boeing (1996-2005). In 2005, the Rocketdyne Division was sold to United Technologies Corporation, becoming Pratt & Whitney Rocketdyne as part of Pratt & Whitney. In 2013, Pratt & Whitney Rocketdyne was sold to GenCorp, which merged it with Aerojet to form Aerojet Rocketdyne.
Nuclear labor issues
Between 1957-1964, Rocketdyne located at the Santa Susana Field Laboratory, 30 miles north of Los Angeles, California operated ten experimental nuclear reactors. Numerous accidents occurred including a core meltdown. Experimental reactors of that era were not required to have the same type of containment structures that shield modern nuclear reactors. During the Cold War time in which the accidents that occurred at Rockedyne, these events were not publicly reported by the Department of Energy. 
In 1979, Rocketdyne released to the public that these events occurred. In 1999 the site was remediated, although thousands of pounds of contaminated sodium coolant cannot be accounted for. Local residents, including former workers filed a class-action suit in 2005, and were awarded $30 million. Many of the workers and local residents were already deceased at the time of the settlement.