The research activity of the founders of the Institute, Emanuela Appetiti and Alain Touwaide, has been supported in recent years by generous funding granted by:

• American Herbal Products Association (AHPA), Silver Spring, MD, U.S.A.;
• Dumbarton Oaks Research Library and Collection (Byzantine Studies), Trustee of Harvard University, Washington, D.C., U.S.A.;
• the Department of History of Science, Oklahoma University, Norman, OK, U.S.A.;
• the History of Medicine Division of the National Library of  Medicine, Bethesda, MD, U.S.A.;
• the Department of Botany, National Museum of Natural History, Smithsonian Institution, Washington, D.C., U.S.A.;
• Hunt Institute for Botanical Documentation, Carnegie Mellon University, Pittsburgh, PA, U.S.A.;
• Earthwatch Institute, Maynard, MA, U.S.A.;
• Istituto Italiano per gli Studi Filosofici, Naples, Italy;
• National Center for Complementary and Alternative Medicine, NIH, Bethesda, MD, U.S.A.;
• Caudill Seed Companies, Louisville, KY, U.S.A.