Trevor Eyton began his career as a lawyer of Tory Tory DesLauriers & Binnington, where he remained until 1979. At that time he left the firm to become the President and Chief Executive Officer of Brascan Limited. After 12 years in that post, Eyton remained with Brascan as a Chairman and Senior Chairman.

In 1991, Eyton was appointed to the Senate of Canada where he remained until retirement in 2009. During his tenure, Eyton contributed as a board member to such corporations including Coca-Cola Enterprises, General Motors of Canada, Nestle Canada, and more. He was also philanthropically involved with organizations such as Junior Achievement and the Canadian Olympic Foundation. Eytan also sat on the Board of Grenville Christian College during a time of much legal controversy surrounding the headmaster of the school.

In 2000, Eyton was awarded Mexico’s Order of the Aztec Eagle – the highest award given to foreigners by the government of Mexico and has been awarded honorary Doctors of Laws by both the University of Waterloo and the University of King’s College at Dalhousie – where he was Chancellor from 1996 to 2001.