OUR MISSION: The Harold E. Eisenberg Foundation is committed to embracing life’s challenges through cancer research and education. Cancer Research - HEEF is now one of the nation’s largest private organizations committed to gastrointestinal cancer research. We are committed to fighting GI Cancer and saving more lives. Real Estate Education - HEEF is committed to bolstering the careers of aspiring real estate students and young professionals through its education programs, including mentorships, academic scholarships, Career Day, the Speaker Series, accredited courses and, most recently, the Midwest Real Estate Challenge.