Throughout his career, Evelyn de Rothschild has been actively involved in a number of other organisations in both the private and public sectors and has held the following business positions:

Chairman - The Economist (1972–1989)
Chairman - British Merchant Banking & Securities House Association (1985–1989)
Deputy Chairman - Milton Keynes Development Corporation (1971–1984)
Chairman - United Racecourses (1977–1994)
Director - De Beers Consolidated Mines (1977–1994)
Director - IBM United Kingdom Holdings Limited (1972–1995)
Evelyn de Rothschild also served as a Director of the newspaper group owned by Lord Beaverbrook. Years later, he served for a time as a Director of Lord Black's Daily Telegraph newspaper. An owner of thoroughbred racehorses, he is a former chairman of United Racecourses.

In 1967 Sir Evelyn created the Eranda Foundation to support social welfare, promote the arts and to encourage research into medicine and education.

Sir Evelyn serves as Queen Elizabeth II's financial adviser[citation needed]. He has been a Governor of the London School of Economics and Political Science as well as an active patron of the arts and supporter of a number of charities.