After completing a postdoctoral fellowship at Louisiana State University, New Orleans (LSUNO), he spent one year as Chargé de Research at the University of Paris VI in France.

Dr. Kadish has also held visiting professorships at Osaka University (Japan), the University of Sydney (Australia), the California Institute of Technology, the University of Rome, the University of Dijon, (France), Ecole Superieure de Chimie Industrielle de Lyon (ESCIL)(France) and Université Louis Pasteur (Strasbourg, France)[2][3] He has published over 600 research papers, the majority of which are on topics related to porphyrins, phthalocyanines, corroles and related macrocycles, while also editing more than 95 books on these topics and directing a research group, which, in total, has numbered over 125 different graduate students and postdoctoral associates.

[2] He is the founder and first president of the Fullerenes Division of the Electrochemical Society[4] and since 1994 has organized or co-organized more than 25 symposia on the topic of fullerenes and carbon nanomaterials.

He was a co-organizer of the first (2000), third (2004), sixth (2010), ninth (2016) and eleventh (2020) International Conference on Porphyrins and Phthalocyanines.

Dr. Kadish is editor-in-chief of the Journal of Porphyrins and Phthalocyanines[5] and also serves as president of the Society of Porphyrins and Phthalocyanines (SPP), a position he has held continuously since June 2000.