Lord Stone retired from his position as joint Managing Director of Marks & Spencer in 1999 and now focuses on projects that interest him, including the promotion of cooperation and enterprise in the Middle East. He also has a deep interest in Arts and Science, Mindfulness and "spirituality". He is President of the DIPEx Charity, which helps patients gain information on how to make the right choices. He is a Trustee of Prism the Gift Fund that helps philanthropists to manage their giving in an efficient and meaningful way. He is a Life Member of the Board of the Weizmann Institute in Israel.