Leib is a member of The Aerospace and Defense Forum and Association for Corporate Growth (ACG). He has been a member of the State Bar Corporation Committee; a Lecturer, California Continuing Education of the Bar; Los Angeles County Bar Association Annual Update on Developments in Securities Law; he has been a member of the Corporation Commissioner's Blue Ribbon Adversary Committee, and a Lecturer and Chairman for the University of California, Los Angeles Extension Courses on “Going Public,” and “Off-Balance-Sheet Financing.”
Leib has been a member of the Federal Regulation of Securities -- Business and Corporation Law Subsection of the Los Angeles County Bar Association, is a former member of the Executive Committee of the Caltech/MIT Enterprise Forum, and a co-founder of the Acorn Angels, a network of high technology and Internet investors. He was a director of elabor.com of Camarillo, California, a venture backed Internet software provider for labor management, Simeus Foods International, a Texas based meat processor, and is currently a director of Gamecolony.com, an on-line chess tournament company. Leib was also a member of the Ernst & Young Entrepreneur of the Year Selection Committee for Los Angeles.