EG & G, Inc.

EG&G, formally known as Edgerton, Germeshausen, and Grier, Inc., was an American national defense contractor and provider of management and technical services. The company was involved in contracting services to the United States government during World War II and conducted the research and development on the nuclear weapons during the Cold war era (from 1948 and onward) together with the American national laboratories in Nevada Test Site.