Thomas L. Phillips

Thomas L. Phillips (1923/1924–2019) was a U.S. engineer and long-serving senior executive at Raytheon Corporation. Phillips began his career at Raytheon in 1948, rising through its ranks to become its CEO in 1968 and board chairman in 1975, holding the CEO position until his retirement in 1991 and remaining on its board until 2000. During his period of leadership, Raytheon was known for its acquisitions outside of the defense sector. The firm's acquisitions under Phillips included commercial electronics, consumer appliances (also known as white goods, and other assets involving advanced engineering. Through his patient management, Raytheon's sales would reach $1 billion by 1967.

In the late 1960s, despite Raytheon's success and citing a period of personal emptiness, Phillips made a commitment to the Christian faith, which would, per the testimony of other Raytheon senior executives, influence his management and leadership philosophy. It also led to his friendship and influence upon Watergate co-conspirator Charles Colson.