Raytheon, a large American defense contractor, is headquartered in Waltham, Massachusetts. Raytheon has 73,000 employees worldwide, with a turnover of about US$ 20 billion, of which more than 90% comes from defense contracts. According to National Defense News 2005, Raytheon is the fifth largest defense contractor in the world.

On May 3, 2020 13, Raytheon ranked 86th in the 2020 Forbes Global Enterprise 2000 list.