Business Leaders Index: I Below are some of the most influential business leaders in the USA whose last names begin with I. Yves-Andre Istel Robert A. Iger Constantine Iordanou Tony Ibargüen Michael Ilitch Martha R. Ingram William Irrgang F. Kenneth Iverson Carl C. Icahn Samuel Insull Lido (Lee) Iacocca Paul F. Iams Hiizu Ichikawa Hanoch Ilsar <–Back to Business Leaders Index