Mis à part ses réalisations considérables dans le monde des finances, l'ambassadeur Heyman a également siégé au conseil d'administration de la Northwestern Memorial Hospital Foundation et a été membre du conseil consultatif de la section de Chicago de Facing History and Ourselves.
Aside from his considerable achievements in the world of finance, Ambassador Heyman has also been a board member of the Northwestern Memorial Hospital Foundation and served as a member of the advisory board of Facing History and Ourselves — Chicago chapter.